Home » Public Forums » GMCnet » [GMCnet] Oil Leak Update
| [GMCnet] Oil Leak Update [message #173728] |
Mon, 18 June 2012 08:25  |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Good Morning
Well, my severe oil leak is GONE !
Put on 400 miles this past weekend and not one drop of oil under the coach,
after the last trip the entire underside from the trans back was wet with oil.
Turned out to be the trans vent, I think I would be the only person that could
install the vent fitting, add a hose and run the hose to the underside of the
coach and create by accident a PERFECT venturi system. All I did as put a
prescription pill bottle over the end of the hose, drilled a 1/2" hole in the
cap, stuck in the hose, done. Literally not one drop of oil in the bottle
either. I did check all fluid levels before leaving and did add 1 qt of trans
oil so all fluids were at correct levels.
Thanks for all of the help guys and I apologize if I sent any innocent
bystanders on fire drills like Jim K.
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] Oil Leak Update [message #173734 is a reply to message #173728] |
Mon, 18 June 2012 09:29  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Ray,
That's incredible!
When you get the opportunity could you take a picture of where the vent hose
is located and how it is attached.
Regards,
Rob M.
-----Original Message-----
From: Ray Erspamer
Good Morning
Well, my severe oil leak is GONE !
Put on 400 miles this past weekend and not one drop of oil under the coach,
after the last trip the entire underside from the trans back was wet with
oil.
Turned out to be the trans vent, I think I would be the only person that
could
install the vent fitting, add a hose and run the hose to the underside of
the
coach and create by accident a PERFECT venturi system. All I did as put a
prescription pill bottle over the end of the hose, drilled a 1/2" hole in
the
cap, stuck in the hose, done. Literally not one drop of oil in the bottle
either. I did check all fluid levels before leaving and did add 1 qt of
trans
oil so all fluids were at correct levels.
Thanks for all of the help guys and I apologize if I sent any innocent
bystanders on fire drills like Jim K.
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] Oil Leak Update [message #173744 is a reply to message #173728] |
Mon, 18 June 2012 10:25 |
Rick Williams
Messages: 256
Registered: July 2004
Karma: 0
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Ray
I really have a hard time believing that a vacuum was created with just the end of the hose hanging loose. I still think it was just a matter of the transmission being overfilled. As I asked in a previous reply, did you add oil just before the trip in which you had the leak?
I put a vent hose on mine and ran it to the right side. It never dripped a bit until I added fluid last year. It then blew a fair amount of oil down the underside of the coach. I added a catch cup as you did and it has not dripped since. But I believe that it just got rid of as much oil as needed before I added the cup. But I am leaving the cup in case I overfill again.
Rick
Rick Williams
Bliss, Michigan
1978 Eleganza II
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| Re: [GMCnet] Oil Leak Update [message #173763 is a reply to message #173744] |
Mon, 18 June 2012 12:24 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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Hard for me to believe too Rick, I started both trips with the exact same amount
of fluid in the trans, 1st trip I lost 2 qts, bottom of the entire coach was
full of oil, 2nd trip with the bottle on, not one drop lost and not a drop in
the bottle.
I think my coach is possessed !
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: Rick Williams <rgw246@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Mon, June 18, 2012 10:25:59 AM
Subject: Re: [GMCnet] Oil Leak Update
Ray
I really have a hard time believing that a vacuum was created with just the end
of the hose hanging loose. I still think it was just a matter of the
transmission being overfilled. As I asked in a previous reply, did you add oil
just before the trip in which you had the leak?
I put a vent hose on mine and ran it to the right side. It never dripped a bit
until I added fluid last year. It then blew a fair amount of oil down the
underside of the coach. I added a catch cup as you did and it has not dripped
since. But I believe that it just got rid of as much oil as needed before I
added the cup. But I am leaving the cup in case I overfill again.
Rick
--
Rick Williams
Gladstone, Michigan
1978 Eleganza II
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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] Oil Leak Update [message #173765 is a reply to message #173731] |
Mon, 18 June 2012 12:26 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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Thanks Dan.
I do have a couple of minor oil leaks I need to fix, got a new oil filter/cooler
adapter gasket from Jim K, I need new valve cover gaskets too, that should take
care of the oil leaks.
Are there any special valve cover gaskets recommended for the 403 ???
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: Mon, June 18, 2012 9:16:50 AM
Subject: Re: [GMCnet] Oil Leak Update
Ray, when I was at Miguel's, a couple of years back, he told me that they had
had the same problem a few times. Don't run the hose too far back or it might
just do what your's did. Never a drop from my little short line, so far.
Glad you got it taken care of.
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] Oil Leak Update [message #173782 is a reply to message #173744] |
Mon, 18 June 2012 14:35 |
armandminnie
Messages: 864
Registered: May 2009
Location: Marana, AZ
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| Rick Williams wrote on Mon, 18 June 2012 08:25 |
Ray
I really have a hard time believing that a vacuum was created with just the end of the hose hanging loose.
Rick
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I have a hard time believing that too. I think I have had this problem and I am wondering if that hose could siphon oil from the tranny. What is on the inside of that vent? Is it a tube going down into the area of the pan maybe? If it were a tube then all it would need is a little overfill and the right conditions (?) to get the siphoning started.
Armand Minnie
Marana, AZ
'76 Eleganza II TZE166V103202
visit my gmc blog
click here to visit gmcws.org
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| Re: [GMCnet] Oil Leak Update [message #173812 is a reply to message #173782] |
Mon, 18 June 2012 18:17 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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The way my luck goes, if I spent $5 million trying to design a siphon that did
this I would never get it to work, but by shear chance I may have cut the hose
to perfect length, routed it and hung the tip down perfect...... I need to run
out and buy some lottery tickets !
Still hard to believe that sticking a Rx bottle on the end changed it.....makes
no sense to me !
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: Armand Minnie <armand@minniebiz.com>
To: gmclist@temp.gmcnet.org
Sent: Mon, June 18, 2012 2:35:10 PM
Subject: Re: [GMCnet] Oil Leak Update
Rick Williams wrote on Mon, 18 June 2012 08:25
> Ray
>
> I really have a hard time believing that a vacuum was created with just the end
>of the hose hanging loose.
>
>
> Rick
I have a hard time believing that too. I think I have had this problem and I am
wondering if that hose could siphon oil from the tranny. What is on the inside
of that vent? Is it a tube going down into the area of the pan maybe? If it were
a tube then all it would need is a little overfill and the right conditions (?)
to get the siphoning started.
--
Armand Minnie
Marana, AZ
'76 Eleganza II
TZE166V103202
http://www.minniebiz.com/gmcmotorhome
use the forum - it's easy
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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] Oil Leak Update [message #173819 is a reply to message #173728] |
Mon, 18 June 2012 18:58 |
Rick Williams
Messages: 256
Registered: July 2004
Karma: 0
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Senior Member |
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Ray
I think you should do some more testing. Next trip, remove the bottle and see what happens. I would try it on mine but seeing that I am retired, I do not have as much spare time as you. You will find this out when you retire.
Rick
Rick Williams
Bliss, Michigan
1978 Eleganza II
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| Re: [GMCnet] Oil Leak Update [message #173822 is a reply to message #173819] |
Mon, 18 June 2012 19:08 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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Right Rick, I'm going to FIX what's working...... considering I own a GMC and
there's always plenty of other things to do on it, I think I'll leave it be !
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: Rick Williams <rgw246@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Mon, June 18, 2012 6:59:04 PM
Subject: Re: [GMCnet] Oil Leak Update
Ray
I think you should do some more testing. Next trip, remove the bottle and see
what happens. I would try it on mine but seeing that I am retired, I do not have
as much spare time as you. You will find this out when you retire.
Rick
--
Rick Williams
Gladstone, Michigan
1978 Eleganza II
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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] Oil Leak Update [message #173825 is a reply to message #173812] |
Mon, 18 June 2012 19:30 |
mickeysss
Messages: 1476
Registered: January 2012
Karma: 0
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the volume of the trans case changes temperature, even when it sets in the sun, i suppose this
pressure change as well, can also help the possible event. the electrons of the masses increase radius.
On Jun 18, 2012, at 4:17 PM, Ray Erspamer wrote:
> The way my luck goes, if I spent $5 million trying to design a siphon that did
> this I would never get it to work, but by shear chance I may have cut the hose
> to perfect length, routed it and hung the tip down perfect...... I need to run
> out and buy some lottery tickets !
>
> Still hard to believe that sticking a Rx bottle on the end changed it.....makes
> no sense to me !
>
> 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: Armand Minnie <armand@minniebiz.com>
> To: gmclist@temp.gmcnet.org
> Sent: Mon, June 18, 2012 2:35:10 PM
> Subject: Re: [GMCnet] Oil Leak Update
>
>
>
> Rick Williams wrote on Mon, 18 June 2012 08:25
>> Ray
>>
>> I really have a hard time believing that a vacuum was created with just the end
>> of the hose hanging loose.
>>
>>
>> Rick
>
>
> I have a hard time believing that too. I think I have had this problem and I am
> wondering if that hose could siphon oil from the tranny. What is on the inside
> of that vent? Is it a tube going down into the area of the pan maybe? If it were
> a tube then all it would need is a little overfill and the right conditions (?)
> to get the siphoning started.
> --
> Armand Minnie
> Marana, AZ
> '76 Eleganza II
> TZE166V103202
> http://www.minniebiz.com/gmcmotorhome
> use the forum - it's easy
> _______________________________________________
> GMCnet mailing list
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| Re: [GMCnet] Oil Leak Update [message #173845 is a reply to message #173819] |
Mon, 18 June 2012 21:53 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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| Rick Williams wrote on Mon, 18 June 2012 18:58 |
Ray
I think you should do some more testing. Next trip, remove the bottle and see what happens. I would try it on mine but seeing that I am retired, I do not have as much spare time as you. You will find this out when you retire.
Rick
|
Wow - can I testify to that!!!!! Lets see, GMC, railroad museum, welding class, machine tool class, pool, 20 acres, 6 vehicles other than the GMC, 2 Harleys, firewood, Her Royal Highness Queen Chloe the Goffin's Cockatoo, organizing the shop and barn, dealing with the in-laws for LL, and I'm sure I missed something. At this rate I'm gonna have to go back to work so I can get some down time.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Oil Leak Update [message #173847 is a reply to message #173822] |
Mon, 18 June 2012 21:57 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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| Ray Erspamer wrote on Mon, 18 June 2012 19:08 |
Right Rick, I'm going to FIX what's working...... considering I own a GMC and
there's always plenty of other things to do on it, I think I'll leave it be !
Ray
|
Here's a thought. Is the dip stick sealed or vented? (I can't remember which.) If vented it might not take as much vacuum as you would think to get air flow through the trans and to carry trans fluid along with the air flow.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Oil Leak Update [message #173849 is a reply to message #173847] |
Mon, 18 June 2012 22:05 |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
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Senior Member |
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I'll check that Steve....really weird, like I said, I think my coach is
possessed.
Did you read my email on the boat ??
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: Steve Southworth <midlf@centurytel.net>
To: gmclist@temp.gmcnet.org
Sent: Mon, June 18, 2012 9:57:34 PM
Subject: Re: [GMCnet] Oil Leak Update
Ray Erspamer wrote on Mon, 18 June 2012 19:08
> Right Rick, I'm going to FIX what's working...... considering I own a GMC and
> there's always plenty of other things to do on it, I think I'll leave it be !
>
> Ray
Here's a thought. Is the dip stick sealed or vented? (I can't remember
which.) If vented it might not take as much vacuum as you would think to get
air flow through the trans and to carry trans fluid along with the air flow.
--
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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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] Oil Leak Update [message #173856 is a reply to message #173849] |
Mon, 18 June 2012 22:23 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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| Ray Erspamer wrote on Mon, 18 June 2012 22:05 |
I'll check that Steve....really weird, like I said, I think my coach is
possessed.
Did you read my email on the boat ??
Ray
Ray & Lisa
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Yep, and I replied twice but my ISP does not like your name.
I think you should start a thread on your boat problem and how Dick Paterson, unbeknown to him, had the answer to your problem. GMC's could also have this problem.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Oil Leak Update [message #173871 is a reply to message #173855] |
Tue, 19 June 2012 00:12 |
armandminnie
Messages: 864
Registered: May 2009
Location: Marana, AZ
Karma: 2
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Senior Member |
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Rob, that figure (MM X-7525 Page 7-6 Transmission Figure 6 - Case Oil passages - Rear) shows two arrows for some reason and no real detail. Do you know if that is just an opening or is it somehow connected lower in the transmission? I am real curious about this because my former transmission kept losing oil - sometimes really fast - and it finally killed it. No leaks will be tolerated this time.
Armand Minnie
Marana, AZ
'76 Eleganza II TZE166V103202
visit my gmc blog
click here to visit gmcws.org
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