Home » Public Forums » GMCnet » [GMCnet] Update on final drive and oil leak
| [GMCnet] Update on final drive and oil leak [message #172377] |
Thu, 07 June 2012 09:48  |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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Good Morning
To update everyone, after our 1600 mile round trip this past Memorial Day
weekend the entire bottom of my coach was soaked in oil from the engine back. I
initially thought it was coming from the final drive left shaft seal, but after
doing further analysis the final drive was only 6 oz low on lube, no where near
enough to soak the entire bottom of the coach, plus the fluid on the underside
is a much lighter viscosity than the gear lube in the final drive.
So what would be your thoughts on where to look next ?
1. Transmission to final drive PEE HOLE which is between the 2 seals where the
transmission shaft enters the final?? This is apparently there so if the 1st
seal leaks, trans fluid does not enter the final drive.
2. I have a ragusa trans pan cover and it has a new gasket, this is not where
the leak is.
3. CRAZY THOUGHT....I have the vent fitting on the top of the transmission
with a hose going over to the frame and hanging there. Could the wind passing
over the hose suck out fluid? Seems like a stretch.
I have completely de-greased the underside of my coach with Gunk and a high
pressure washer, this weekend I will take several short runs and then do more
detailed checking to see if I can find where the leak/oil is coming from.
All help or ideas are appreciated.
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] Update on final drive and oil leak [message #172395 is a reply to message #172377] |
Thu, 07 June 2012 11:00  |
emerystora
Messages: 4442
Registered: January 2004
Karma: 13
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Senior Member |
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Ray
Be sure to check the transmission cooler lines that attach at the top of the transmission. I had a leak once that drove me crazy. I had transmission fluid over the bottom of the transmission and it had blown back over the engine and even on the fuel tanks.
I thought it might be a pan seal leak but I replaced the gasket and it still was there.
I found it by using a flashlight while running the engine. There was just a small film of fluid leaking from one fitting. It ran to the front and down along the front of the transmission down to the front of the pan where it was blown back.
Emery Stora
On Jun 7, 2012, at 8:48 AM, Ray Erspamer wrote
> Good Morning
>
> To update everyone, after our 1600 mile round trip this past Memorial Day
> weekend the entire bottom of my coach was soaked in oil from the engine back. I
> initially thought it was coming from the final drive left shaft seal, but after
> doing further analysis the final drive was only 6 oz low on lube, no where near
> enough to soak the entire bottom of the coach, plus the fluid on the underside
> is a much lighter viscosity than the gear lube in the final drive.
>
> So what would be your thoughts on where to look next ?
> 1. Transmission to final drive PEE HOLE which is between the 2 seals where the
> transmission shaft enters the final?? This is apparently there so if the 1st
> seal leaks, trans fluid does not enter the final drive.
> 2. I have a ragusa trans pan cover and it has a new gasket, this is not where
> the leak is.
> 3. CRAZY THOUGHT....I have the vent fitting on the top of the transmission
> with a hose going over to the frame and hanging there. Could the wind passing
> over the hose suck out fluid? Seems like a stretch.
>
> I have completely de-greased the underside of my coach with Gunk and a high
> pressure washer, this weekend I will take several short runs and then do more
> detailed checking to see if I can find where the leak/oil is coming from.
>
> All help or ideas are appreciated.
>
> Ray
>
>
> Ray & Lisa
> 78 Royale "Great Lakes Eagle"
> Center Kitchen TZE368V101144
> Wauwatosa, Wisconsin 53226
> Email: 78GMC-Royale@att.net
> 414-745-3188
> Web Site: http://ray-lisa.page.tl/
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Update on final drive and oil leak [message #172396 is a reply to message #172377] |
Thu, 07 June 2012 11:05 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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| Ray Erspamer wrote on Thu, 07 June 2012 07:48 |
Good Morning
To update everyone, after our 1600 mile round trip this past Memorial Day
weekend the entire bottom of my coach was soaked in oil from the engine back. I
initially thought it was coming from the final drive left shaft seal, but after
doing further analysis the final drive was only 6 oz low on lube, no where near
enough to soak the entire bottom of the coach, plus the fluid on the underside
is a much lighter viscosity than the gear lube in the final drive.
So what would be your thoughts on where to look next ?
1. Transmission to final drive PEE HOLE which is between the 2 seals where the
transmission shaft enters the final?? This is apparently there so if the 1st
seal leaks, trans fluid does not enter the final drive.
2. I have a ragusa trans pan cover and it has a new gasket, this is not where
the leak is.
3. CRAZY THOUGHT....I have the vent fitting on the top of the transmission
with a hose going over to the frame and hanging there. Could the wind passing
over the hose suck out fluid? Seems like a stretch.
I have completely de-greased the underside of my coach with Gunk and a high
pressure washer, this weekend I will take several short runs and then do more
detailed checking to see if I can find where the leak/oil is coming from.
All help or ideas are appreciated.
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
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Are you sure its not the front crankshaft seal? If it leaks the passenger side from the engine pulleys back to the mufflers will be dripping oil. If you find it is this seal I would suggest you replace it with a high temperature rated one.
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] Update on final drive and oil leak [message #172422 is a reply to message #172396] |
Thu, 07 June 2012 12:46 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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Thanks Roy, I will look at this.
This leak is bad, I had an oil coating from the front all the way to the back
bumper and enough collected at points for it to drip. I need to pull my rear
gas tank this weekend and if I hadn't washed down the undercarriage it would
have been a horrific filthy job.
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: "roy@gmcnet.org" <roy@gmcnet.org>
To: gmclist@temp.gmcnet.org
Sent: Thu, June 7, 2012 11:06:04 AM
Subject: Re: [GMCnet] Update on final drive and oil leak
Ray Erspamer wrote on Thu, 07 June 2012 07:48
> Good Morning
>
> To update everyone, after our 1600 mile round trip this past Memorial Day
> weekend the entire bottom of my coach was soaked in oil from the engine back.
>I
>
> initially thought it was coming from the final drive left shaft seal, but after
>
> doing further analysis the final drive was only 6 oz low on lube, no where near
>
> enough to soak the entire bottom of the coach, plus the fluid on the underside
> is a much lighter viscosity than the gear lube in the final drive.
>
> So what would be your thoughts on where to look next ?
> 1. Transmission to final drive PEE HOLE which is between the 2 seals where the
>
> transmission shaft enters the final?? This is apparently there so if the 1st
> seal leaks, trans fluid does not enter the final drive.
> 2. I have a ragusa trans pan cover and it has a new gasket, this is not where
> the leak is.
> 3. CRAZY THOUGHT....I have the vent fitting on the top of the transmission
> with a hose going over to the frame and hanging there. Could the wind passing
>
> over the hose suck out fluid? Seems like a stretch.
>
> I have completely de-greased the underside of my coach with Gunk and a high
> pressure washer, this weekend I will take several short runs and then do more
> detailed checking to see if I can find where the leak/oil is coming from.
>
> All help or ideas are appreciated.
>
> Ray
>
>
> Ray & Lisa
> 78 Royale "Great Lakes Eagle"
> Center Kitchen TZE368V101144
> Wauwatosa, Wisconsin 53226
> Email: 78GMC-Royale@att.net
> 414-745-3188
> Web Site: http://ray-lisa.page.tl/
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Are you sure its not the front crankshaft seal? If it leaks the passenger side
from the engine pulleys back to the mufflers will be dripping oil. If you find
it is this seal I would suggest you replace it with a high temperature rated
one.
--
Roy Keen
Minden,NV
76 X Glenbrook
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] Update on final drive and oil leak [message #172423 is a reply to message #172420] |
Thu, 07 June 2012 12:53 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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I hear ya on the wind Dan, especially when we drove 800 miles in the 65 to 70
MPH range. Those drops get spread out pretty thin.
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Dan Gregg <gregg_dan@hotmail.com>
To: gmclist@temp.gmcnet.org
Sent: Thu, June 7, 2012 12:45:58 PM
Subject: Re: [GMCnet] Update on final drive and oil leak
Check your power steering pump to be sure it is full. That is a lightweight
fluid. A little will look like a lot when blown by wind. If you have everything
cleaned up, look at the power steering line. I am thinking you will spot
something soon. Glad it is not the final drive. I thought that was kinda quick
for that to happen. I had about 30,000 on my 370 before it started leaking.
Dan
--
Dan & Teri Gregg
http://danandteri.blogspot.com/
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] Update on final drive and oil leak [message #172488 is a reply to message #172395] |
Thu, 07 June 2012 18:58 |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
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Senior Member |
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| emerystora wrote on Thu, 07 June 2012 09:00 |
Ray
Be sure to check the transmission cooler lines that attach at the top of the transmission. I had a leak once that drove me crazy. I had transmission fluid over the bottom of the transmission and it had blown back over the engine and even on the
|
I had the same thing. It appeared to be coming from the from of the trans pan. From the cooler line connections, it goes through a worm hole in the rib, onto the top of the trans, down the right side, onto the valve body... Slopes forward onto the front of the pan where the air turbulence takes it everywhere. It was especially bad after a stop as it ran off the valve body... Forward.
I also chased an engine oil leak. It was where the oil filter adaptor bolts to the block. Ran down behind the starter and got everywhere.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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| Re: [GMCnet] Update on final drive and oil leak [message #172498 is a reply to message #172418] |
Thu, 07 June 2012 19:21 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Larry,
You're correct; Peter Bailey and I took Mark to buy the foot powder.
According to him it worked great.
They had two brands at the supermarket and we wanted to know which one would
leave the most residue. I figgered the best way to find out was to spray
some on the back of my hands.
It worked BUT there were some comments about me smelling like a French you
know what and I was instructed to stick my hands out the window!
Regards,
Rob M.
-----Original Message-----
From: Larry
Ray,
One of the things we learned at the Shawnee rally, as a result of Mark
Hogenboom's big leak problem was to wash everything dow throughly with Brake
Clean, the spray...I think it was either baby powder or foot powder all over
the suspected area. Then take a SHORT drive. The source of the leak should
show up right away. If I got this wrong, someone please correct me....
--
Larry :)
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Update on final drive and oil leak [message #172855 is a reply to message #172488] |
Sun, 10 June 2012 21:08 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
This is frustrating...
Got the coach on level ground today, trans oil was low and engine oil was low
after our 800 mile return trip from Toronto. I topped them off per the dip
sticks.
Took a long test drive.
Came home, let the coach cool down......laid under the coach for 2 hours in
today's 90 degree heat. No oil on bottom of coach.
1. Power Steering is not leaking
2. Transmission cooler lines at trans are not leaking.
3. Some very minor valve cover leakage but not enough to even run down the
engine let alone soak the bottom of the coach.
4. I have the fitting on the trans vent with a hose going down and hanging
below the dirvers side frame rail, it had a few drops dripping, COULD THE
HOSE IN THE POSITION IT'S HANGING ACT AS A VENTURI AND THE MOVING AIR SUCK
OUT FLUID AT 70 MPH? Seems like a stretch.
5. Some leakage where the oil cooler lines connect to the oil filter adapter, I
will replace that gasket.
This all started when I put in the new 3:70 final drive, never had a drop of any
oil under the coach until the......what the heck could be going on ???
Any help is appreciated !
Thanks
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: George Beckman <gbeckman@pggp.com>
To: gmclist@temp.gmcnet.org
Sent: Thu, June 7, 2012 6:58:13 PM
Subject: Re: [GMCnet] Update on final drive and oil leak
emerystora wrote on Thu, 07 June 2012 09:00
> Ray
>
> Be sure to check the transmission cooler lines that attach at the top of the
>transmission. I had a leak once that drove me crazy. I had transmission fluid
>over the bottom of the transmission and it had blown back over the engine and
>even on the
I had the same thing. It appeared to be coming from the from of the trans pan.
From the cooler line connections, it goes through a worm hole in the rib, onto
the top of the trans, down the right side, onto the valve body... Slopes forward
onto the front of the pan where the air turbulence takes it everywhere. It was
especially bad after a stop as it ran off the valve body... Forward.
I also chased an engine oil leak. It was where the oil filter adaptor bolts to
the block. Ran down behind the starter and got everywhere.
--
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
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| Re: [GMCnet] Update on final drive and oil leak [message #172869 is a reply to message #172855] |
Sun, 10 June 2012 21:53 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Intake manifold (al)
Gene
FREE WIFI @ Mickey D
On Jun 10, 2012, at 7:08 PM, Ray Erspamer <78gmc-royale@att.net> wrote:
> This is frustrating...
>
> Got the coach on level ground today, trans oil was low and engine oil was low
> after our 800 mile return trip from Toronto. I topped them off per the dip
> sticks.
>
> Took a long test drive.
>
> Came home, let the coach cool down......laid under the coach for 2 hours in
> today's 90 degree heat. No oil on bottom of coach.
>
> 1. Power Steering is not leaking
> 2. Transmission cooler lines at trans are not leaking.
> 3. Some very minor valve cover leakage but not enough to even run down the
> engine let alone soak the bottom of the coach.
> 4. I have the fitting on the trans vent with a hose going down and hanging
> below the dirvers side frame rail, it had a few drops dripping, COULD THE
> HOSE IN THE POSITION IT'S HANGING ACT AS A VENTURI AND THE MOVING AIR SUCK
> OUT FLUID AT 70 MPH? Seems like a stretch.
> 5. Some leakage where the oil cooler lines connect to the oil filter adapter, I
> will replace that gasket.
>
> This all started when I put in the new 3:70 final drive, never had a drop of any
> oil under the coach until the......what the heck could be going on ???
>
>
> Any help is appreciated !
>
> Thanks
>
>
>
> Ray
>
>
> Ray & Lisa
> 78 Royale "Great Lakes Eagle"
> Center Kitchen TZE368V101144
> Wauwatosa, Wisconsin 53226
> Email: 78GMC-Royale@att.net
> 414-745-3188
> Web Site: http://ray-lisa.page.tl/
>
>
>
>
> ________________________________
> From: George Beckman <gbeckman@pggp.com>
> To: gmclist@temp.gmcnet.org
> Sent: Thu, June 7, 2012 6:58:13 PM
> Subject: Re: [GMCnet] Update on final drive and oil leak
>
>
>
> emerystora wrote on Thu, 07 June 2012 09:00
>> Ray
>>
>> Be sure to check the transmission cooler lines that attach at the top of the
>> transmission. I had a leak once that drove me crazy. I had transmission fluid
>> over the bottom of the transmission and it had blown back over the engine and
>> even on the
>
> I had the same thing. It appeared to be coming from the from of the trans pan.
> From the cooler line connections, it goes through a worm hole in the rib, onto
> the top of the trans, down the right side, onto the valve body... Slopes forward
> onto the front of the pan where the air turbulence takes it everywhere. It was
> especially bad after a stop as it ran off the valve body... Forward.
>
> I also chased an engine oil leak. It was where the oil filter adaptor bolts to
> the block. Ran down behind the starter and got everywhere.
> --
> '74 Eleganza, SE, Howell + EBL
> Best Wishes,
> George
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Update on final drive and oil leak [message #172872 is a reply to message #172869] |
Sun, 10 June 2012 22:00 |
 |
WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
|
Senior Member |
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| Mr ERFisher wrote on Sun, 10 June 2012 21:53 |
Intake manifold (al)
Gene
FREE WIFI @ Mickey D
On Jun 10, 2012, at 7:08 PM, Ray Erspamer <78gmc-royale@att.net> wrote:
> This is frustrating...
>
> Got the coach on level ground today, trans oil was low and engine oil was low
> after our 800 mile return trip from Toronto. I topped them off per the dip
> sticks.
>
> Took a long test drive.
>
> Came home, let the coach cool down......laid under the coach for 2 hours in
> today's 90 degree heat. No oil on bottom of coach.
>
> 1. Power Steering is not leaking
> 2. Transmission cooler lines at trans are not leaking.
> 3. Some very minor valve cover leakage but not enough to even run down the
> engine let alone soak the bottom of the coach.
> 4. I have the fitting on the trans vent with a hose going down and hanging
> below the dirvers side frame rail, it had a few drops dripping, COULD THE
> HOSE IN THE POSITION IT'S HANGING ACT AS A VENTURI AND THE MOVING AIR SUCK
> OUT FLUID AT 70 MPH? Seems like a stretch.
> 5. Some leakage where the oil cooler lines connect to the oil filter adapter, I
> will replace that gasket.
>
> This all started when I put in the new 3:70 final drive, never had a drop of any
> oil under the coach until the......what the heck could be going on ???
>
>
> Any help is appreciated !
>
> Thanks
>
>
>
> Ray
>
>
> Ray & Lisa
> 78 Royale "Great Lakes Eagle"
> Center Kitchen TZE368V101144
> Wauwatosa, Wisconsin 53226
> Email: 78GMC-Royale@att.net
> 414-745-3188
> Web Site: http://ray-lisa.page.tl/
>
>
>
>
> ________________________________
> From: George Beckman <gbeckman@pggp.com>
> To: gmclist@temp.gmcnet.org
> Sent: Thu, June 7, 2012 6:58:13 PM
> Subject: Re: [GMCnet] Update on final drive and oil leak
>
>
>
> emerystora wrote on Thu, 07 June 2012 09:00
>> Ray
>>
>> Be sure to check the transmission cooler lines that attach at the top of the
>> transmission. I had a leak once that drove me crazy. I had transmission fluid
>> over the bottom of the transmission and it had blown back over the engine and
>> even on the
>
> I had the same thing. It appeared to be coming from the from of the trans pan.
> From the cooler line connections, it goes through a worm hole in the rib, onto
> the top of the trans, down the right side, onto the valve body... Slopes forward
> onto the front of the pan where the air turbulence takes it everywhere. It was
> especially bad after a stop as it ran off the valve body... Forward.
>
> I also chased an engine oil leak. It was where the oil filter adaptor bolts to
> the block. Ran down behind the starter and got everywhere.
> --
> '74 Eleganza, SE, Howell + EBL
> Best Wishes,
> George
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Nope, Ray has a 403.
3 In Stainless Exhaust Headers
One Ton All Discs/Reaction Arm
355 FD/Quad Bag/Alum Radiator Manny Tran/New eng.
Holley EFI/10 Tire Air Monitoring System
Solarized Coach/Upgraded Windows
Satelite TV/On Demand Hot Water/3Way Refer
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| Re: [GMCnet] Update on final drive and oil leak [message #172875 is a reply to message #172855] |
Sun, 10 June 2012 22:13 |
|
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Ray,
I don't know how a vent that is "hanging below the drivers side frame rail,"
could get oil back over under the engine/trans.
You could tie wrap a plastic bottle to the frame rail and stick the end of
the vent into the bottle and see if any fluid collects.
IIRC KenH has a setup like that. He's an environmentally friendly fella! ;-)
I just thought of something, if you went from a 3.07 to a 3.70 the engine
rpm would go up; could that change cause something to start leaking or
venting?
Regards,
Rob M.
-----Original Message-----
From: Ray Erspamer
This is frustrating...
Got the coach on level ground today, trans oil was low and engine oil was
low
after our 800 mile return trip from Toronto. I topped them off per the dip
sticks.
Took a long test drive.
Came home, let the coach cool down......laid under the coach for 2 hours in
today's 90 degree heat. No oil on bottom of coach.
1. Power Steering is not leaking
2. Transmission cooler lines at trans are not leaking.
3. Some very minor valve cover leakage but not enough to even run down the
engine let alone soak the bottom of the coach.
4. I have the fitting on the trans vent with a hose going down and hanging
below the dirvers side frame rail, it had a few drops dripping, COULD
THE
HOSE IN THE POSITION IT'S HANGING ACT AS A VENTURI AND THE MOVING AIR SUCK
OUT FLUID AT 70 MPH? Seems like a stretch.
5. Some leakage where the oil cooler lines connect to the oil filter
adapter, I
will replace that gasket.
This all started when I put in the new 3:70 final drive, never had a drop of
any
oil under the coach until the......what the heck could be going on ???
Any help is appreciated!
Thanks
Ray
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Update on final drive and oil leak [message #172900 is a reply to message #172875] |
Mon, 11 June 2012 06:01 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
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I will try the bottle on the vent hose Rob, thanks. I went from a 3:42 to a 3:70.
Sent via BlackBerry by AT&T
-----Original Message-----
From: "Robert Mueller" <robmueller@iinet.net.au>
Sender: gmclist-bounces@temp.gmcnet.org
Date: Mon, 11 Jun 2012 13:13:45
To: <gmclist@temp.gmcnet.org>
Reply-To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Update on final drive and oil leak
Ray,
I don't know how a vent that is "hanging below the drivers side frame rail,"
could get oil back over under the engine/trans.
You could tie wrap a plastic bottle to the frame rail and stick the end of
the vent into the bottle and see if any fluid collects.
IIRC KenH has a setup like that. He's an environmentally friendly fella! ;-)
I just thought of something, if you went from a 3.07 to a 3.70 the engine
rpm would go up; could that change cause something to start leaking or
venting?
Regards,
Rob M.
-----Original Message-----
From: Ray Erspamer
This is frustrating...
Got the coach on level ground today, trans oil was low and engine oil was
low
after our 800 mile return trip from Toronto. I topped them off per the dip
sticks.
Took a long test drive.
Came home, let the coach cool down......laid under the coach for 2 hours in
today's 90 degree heat. No oil on bottom of coach.
1. Power Steering is not leaking
2. Transmission cooler lines at trans are not leaking.
3. Some very minor valve cover leakage but not enough to even run down the
engine let alone soak the bottom of the coach.
4. I have the fitting on the trans vent with a hose going down and hanging
below the dirvers side frame rail, it had a few drops dripping, COULD
THE
HOSE IN THE POSITION IT'S HANGING ACT AS A VENTURI AND THE MOVING AIR SUCK
OUT FLUID AT 70 MPH? Seems like a stretch.
5. Some leakage where the oil cooler lines connect to the oil filter
adapter, I
will replace that gasket.
This all started when I put in the new 3:70 final drive, never had a drop of
any
oil under the coach until the......what the heck could be going on ???
Any help is appreciated!
Thanks
Ray
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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| Re: [GMCnet] Update on final drive and oil leak [message #172951 is a reply to message #172377] |
Mon, 11 June 2012 12:15 |
 |
mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
|
Senior Member |
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| Ray Erspamer wrote on Thu, 07 June 2012 07:48 |
...
3. CRAZY THOUGHT....I have the vent fitting on the top of the transmission
with a hose going over to the frame and hanging there. Could the wind passing
over the hose suck out fluid? Seems like a stretch. ...
|
It is called a "road draft tube." My 1965 Mustang had one... when I had a 1965 Mustang. It was used to remove blow-by from the crankcase. That is handled by the PVC systems in "more modern" vehicles.
But, for it to pull liquid from the trans vent, the transmission would have to be overfilled or something.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] Update on final drive and oil leak [message #172952 is a reply to message #172872] |
Mon, 11 June 2012 12:19 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
Something just came to mind, what if my engine temp gauge is off and I'm running
hot, not hot enough to burn the tranny fluid, just hotter than I should be,
would that cause the tranny fluid to expand more than normal and exit the vent?
Thinking I may want to try putting the severe duty fan clutch (15-4644) back on
to see if that makes a difference.
Thoughts ??
I'm grasping at anything I can think of here.
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Dan Gregg <gregg_dan@hotmail.com>
To: gmclist@temp.gmcnet.org
Sent: Sun, June 10, 2012 10:00:52 PM
Subject: Re: [GMCnet] Update on final drive and oil leak
Mr ERFisher wrote on Sun, 10 June 2012 21:53
> Intake manifold (al)
> Gene
>
> FREE WIFI @ Mickey D
>
>
>
>
>
> On Jun 10, 2012, at 7:08 PM, Ray Erspamer <78gmc-royale@att.net> wrote:
>
> > This is frustrating...
> >
> > Got the coach on level ground today, trans oil was low and engine oil was low
>
> > after our 800 mile return trip from Toronto. I topped them off per the dip
> > sticks.
> >
> > Took a long test drive.
> >
> > Came home, let the coach cool down......laid under the coach for 2 hours in
> > today's 90 degree heat. No oil on bottom of coach.
> >
> > 1. Power Steering is not leaking
> > 2. Transmission cooler lines at trans are not leaking.
> > 3. Some very minor valve cover leakage but not enough to even run down the
> > engine let alone soak the bottom of the coach.
> > 4. I have the fitting on the trans vent with a hose going down and hanging
> > below the dirvers side frame rail, it had a few drops dripping, COULD THE
>
> > HOSE IN THE POSITION IT'S HANGING ACT AS A VENTURI AND THE MOVING AIR
>SUCK
>
> > OUT FLUID AT 70 MPH? Seems like a stretch.
> > 5. Some leakage where the oil cooler lines connect to the oil filter
>adapter, I
>
> > will replace that gasket.
> >
> > This all started when I put in the new 3:70 final drive, never had a drop of
>any
>
> > oil under the coach until the......what the heck could be going on ???
> >
> >
> > Any help is appreciated !
> >
> > Thanks
> >
> >
> >
> > Ray
> >
> >
> > Ray & Lisa
> > 78 Royale "Great Lakes Eagle"
> > Center Kitchen TZE368V101144
> > Wauwatosa, Wisconsin 53226
> > Email: 78GMC-Royale@att.net
> > 414-745-3188
> > Web Site: http://ray-lisa.page.tl/
> >
> >
> >
> >
> > ________________________________
> > From: George Beckman <gbeckman@pggp.com>
> > To: gmclist@temp.gmcnet.org
> > Sent: Thu, June 7, 2012 6:58:13 PM
> > Subject: Re: [GMCnet] Update on final drive and oil leak
> >
> >
> >
> > emerystora wrote on Thu, 07 June 2012 09:00
> >> Ray
> >>
> >> Be sure to check the transmission cooler lines that attach at the top of the
>
> >> transmission. I had a leak once that drove me crazy. I had transmission
>fluid
>
> >> over the bottom of the transmission and it had blown back over the engine
>and
>
> >> even on the
> >
> > I had the same thing. It appeared to be coming from the from of the trans
>pan.
>
> > From the cooler line connections, it goes through a worm hole in the rib,
>onto
>
> > the top of the trans, down the right side, onto the valve body... Slopes
>forward
>
> > onto the front of the pan where the air turbulence takes it everywhere. It
>was
>
> > especially bad after a stop as it ran off the valve body... Forward.
> >
> > I also chased an engine oil leak. It was where the oil filter adaptor bolts
>to
>
> > the block. Ran down behind the starter and got everywhere.
> > --
> > '74 Eleganza, SE, Howell + EBL
> > Best Wishes,
> > George
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Nope, Ray has a 403.
--
Dan & Teri Gregg
http://danandteri.blogspot.com/
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_______________________________________________
GMCnet mailing list
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
|
|
|
|
| Re: [GMCnet] Update on final drive and oil leak [message #172953 is a reply to message #172951] |
Mon, 11 June 2012 12:22 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
|
Senior Member |
|
|
My exact thoughts mike.
Yesterday when I checked my trans fluid, it would not even read on the
dip-stick, dip-stick was dry, yet the transmission shifted and performed
perfect. I would have to add at least a gallon of fluid to make it read
correctly on the dip stick.
The oil I'm getting on the underside of the coach is thin like trans fluid too.
Ray
Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/
________________________________
From: Mike Miller <m000035@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Mon, June 11, 2012 12:15:52 PM
Subject: Re: [GMCnet] Update on final drive and oil leak
Ray Erspamer wrote on Thu, 07 June 2012 07:48
> ...
> 3. CRAZY THOUGHT....I have the vent fitting on the top of the transmission
> with a hose going over to the frame and hanging there. Could the wind passing
>
> over the hose suck out fluid? Seems like a stretch. ...
It is called a "road draft tube." My 1965 Mustang had one... when I had a 1965
Mustang. It was used to remove blow-by from the crankcase. That is handled by
the PVC systems in "more modern" vehicles.
But, for it to pull liquid from the trans vent, the transmission would have to
be overfilled or something.
--
Mike Miller -- Hillsboro, OR -- on the Black list
(#1)'73 26' exPainted D. -- (#2)`78 23' Birchaven Rear Bath -- (#3)`77 23'
Birchaven Side Bath
http://m000035.blogspot.com
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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