Home » Public Forums » GMCnet » transmission fluid leaking (change filter or just gasket)
| transmission fluid leaking [message #197465] |
Tue, 05 February 2013 15:41  |
pzerkel
Messages: 212
Registered: September 2007
Location: Salisbury, IL
Karma: 0
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Coach has been parked for winter since November.
Noticed transmission fluid has leaked out onto the concrete pad. I have a Ragusa aluminan transmission pan, and it looks like the fluid is leaking out around.
The Ragusa pan was put on ~2008. At that time I also changed the transmission filter. I have not driven as much as I should have since 2008. Less than 3,000 miles for sure. My question is, is it worth it to change the filter, or should I just get a new gasket, considering how few miles it has been driven?
At this point I am not sure if it is leaking around the pan or somewhere else.
I found some older posts that sounded like a few people have had issues with the Ragusa pan "seeping" fluid? FWIW, I do still have the original pan. Is there any reason to go back to it?
Thanks.
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
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| Re: [GMCnet] transmission fluid leaking [message #197466 is a reply to message #197465] |
Tue, 05 February 2013 16:05  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Paul,
If a GMC is parked for a long period the fluid in the top half of the torque convertor drains back into the transmission raising the
level in the transmission which then can leak out.
I have an OEM pan on Double Trouble and I found it was leaking between the pan and the trans body. I removed it and replaced the
seal and with Manny's recommendation I used Permatex Aerospace Sealant on both sides of the gasket.
However, when I park Double Trouble (October to June) I still put a 4" high box filled with Speedi-Dry (Fullers earth / cat litter)
under it to catch any fluid that might leak.
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: Paul Zerkel
Coach has been parked for winter since November.
Noticed transmission fluid has leaked out onto the concrete pad. I have a Ragusa aluminan transmission pan, and it looks like the
fluid is leaking out around.
The Ragusa pan was put on ~2008. At that time I also changed the transmission filter. I have not driven as much as I should have
since 2008. Less than 3,000 miles for sure. My question is, is it worth it to change the filter, or should I just get a new gasket,
considering how few miles it has been driven?
At this point I am not sure if it is leaking around the pan or somewhere else.
I found some older posts that sounded like a few people have had issues with the Ragusa pan "seeping" fluid? FWIW, I do still have
the original pan. Is there any reason to go back to it?
Thanks.
--
Paul
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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] transmission fluid leaking [message #197467 is a reply to message #197465] |
Tue, 05 February 2013 16:30 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Paul, the Ragusa fined aluminum pans have been known to have inclusions and
porous spots, and will seep fluid over long periods of time. Mine does not
leak because I sealed the inside with the same product that many engine
builders use. I have done several that way with good success. Make sure
that the chaincase gasket on the rear of the transmission is not the guilty
party. They leak frequently as well. There are several brands of the
product that is known as insulating varnish. It is also used in the
electric motor and generator trades to insulate windings. It air dries on a
couple of days, or can be cured in a low heat oven in about 4 hours.
Eastwood carries a good brand in their catalog. That is the one I use.
Jim Hupy
Salem, Or
78 Gmc Royale 403
On Feb 5, 2013 1:41 PM, "Paul Zerkel" <gmc2@zerkelhome.com> wrote:
>
>
> Coach has been parked for winter since November.
>
> Noticed transmission fluid has leaked out onto the concrete pad. I have a
> Ragusa aluminan transmission pan, and it looks like the fluid is leaking
> out around.
>
> The Ragusa pan was put on ~2008. At that time I also changed the
> transmission filter. I have not driven as much as I should have since 2008.
> Less than 3,000 miles for sure. My question is, is it worth it to change
> the filter, or should I just get a new gasket, considering how few miles it
> has been driven?
>
> At this point I am not sure if it is leaking around the pan or somewhere
> else.
>
> I found some older posts that sounded like a few people have had issues
> with the Ragusa pan "seeping" fluid? FWIW, I do still have the original
> pan. Is there any reason to go back to it?
>
> Thanks.
> --
> Paul Zerkel
> '78 Eleganza II
> Salisbury IL (near Springfield)
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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| Re: [GMCnet] transmission fluid leaking [message #197468 is a reply to message #197467] |
Tue, 05 February 2013 16:33 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Paul, forgot to mention the brand, GLYPTAL.
JIM Hupy
On Feb 5, 2013 2:30 PM, "James Hupy" <jamesh1296@gmail.com> wrote:
> Paul, the Ragusa fined aluminum pans have been known to have inclusions
> and porous spots, and will seep fluid over long periods of time. Mine does
> not leak because I sealed the inside with the same product that many engine
> builders use. I have done several that way with good success. Make sure
> that the chaincase gasket on the rear of the transmission is not the guilty
> party. They leak frequently as well. There are several brands of the
> product that is known as insulating varnish. It is also used in the
> electric motor and generator trades to insulate windings. It air dries on a
> couple of days, or can be cured in a low heat oven in about 4 hours.
> Eastwood carries a good brand in their catalog. That is the one I use.
> Jim Hupy
> Salem, Or
> 78 Gmc Royale 403
> On Feb 5, 2013 1:41 PM, "Paul Zerkel" <gmc2@zerkelhome.com> wrote:
>
>>
>>
>> Coach has been parked for winter since November.
>>
>> Noticed transmission fluid has leaked out onto the concrete pad. I have a
>> Ragusa aluminan transmission pan, and it looks like the fluid is leaking
>> out around.
>>
>> The Ragusa pan was put on ~2008. At that time I also changed the
>> transmission filter. I have not driven as much as I should have since 2008.
>> Less than 3,000 miles for sure. My question is, is it worth it to change
>> the filter, or should I just get a new gasket, considering how few miles it
>> has been driven?
>>
>> At this point I am not sure if it is leaking around the pan or somewhere
>> else.
>>
>> I found some older posts that sounded like a few people have had issues
>> with the Ragusa pan "seeping" fluid? FWIW, I do still have the original
>> pan. Is there any reason to go back to it?
>>
>> Thanks.
>> --
>> Paul Zerkel
>> '78 Eleganza II
>> Salisbury IL (near Springfield)
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
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| Re: [GMCnet] transmission fluid leaking [message #197487 is a reply to message #197468] |
Tue, 05 February 2013 17:59 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Senior Member |
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Jim,
Does Glyptal come in an spray can.
On Tue, Feb 5, 2013 at 3:33 PM, James Hupy <jamesh1296@gmail.com> wrote:
> Paul, forgot to mention the brand, GLYPTAL.
> JIM Hupy
> On Feb 5, 2013 2:30 PM, "James Hupy" <jamesh1296@gmail.com> wrote:
>
> > Paul, the Ragusa fined aluminum pans have been known to have inclusions
> > and porous spots, and will seep fluid over long periods of time. Mine
> does
> > not leak because I sealed the inside with the same product that many
> engine
> > builders use. I have done several that way with good success. Make sure
> > that the chaincase gasket on the rear of the transmission is not the
> guilty
> > party. They leak frequently as well. There are several brands of the
> > product that is known as insulating varnish. It is also used in the
> > electric motor and generator trades to insulate windings. It air dries
> on a
> > couple of days, or can be cured in a low heat oven in about 4 hours.
> > Eastwood carries a good brand in their catalog. That is the one I use.
> > Jim Hupy
> > Salem, Or
> > 78 Gmc Royale 403
> > On Feb 5, 2013 1:41 PM, "Paul Zerkel" <gmc2@zerkelhome.com> wrote:
> >
> >>
> >>
> >> Coach has been parked for winter since November.
> >>
> >> Noticed transmission fluid has leaked out onto the concrete pad. I have
> a
> >> Ragusa aluminan transmission pan, and it looks like the fluid is leaking
> >> out around.
> >>
> >> The Ragusa pan was put on ~2008. At that time I also changed the
> >> transmission filter. I have not driven as much as I should have since
> 2008.
> >> Less than 3,000 miles for sure. My question is, is it worth it to change
> >> the filter, or should I just get a new gasket, considering how few
> miles it
> >> has been driven?
> >>
> >> At this point I am not sure if it is leaking around the pan or somewhere
> >> else.
> >>
> >> I found some older posts that sounded like a few people have had issues
> >> with the Ragusa pan "seeping" fluid? FWIW, I do still have the original
> >> pan. Is there any reason to go back to it?
> >>
> >> Thanks.
> >> --
> >> Paul Zerkel
> >> '78 Eleganza II
> >> Salisbury IL (near Springfield)
> >> _______________________________________________
> >> GMCnet mailing list
> >> Unsubscribe or Change List Options:
> >> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >>
> >
> _______________________________________________
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--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: [GMCnet] transmission fluid leaking [message #197490 is a reply to message #197468] |
Tue, 05 February 2013 18:15 |
pzerkel
Messages: 212
Registered: September 2007
Location: Salisbury, IL
Karma: 0
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Senior Member |
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| James Hupy wrote on Tue, 05 February 2013 16:33 |
I have done several that way with good success.
|
Jim,
Are you saying that this is a service you offer to others? And can a pan that has been installed for several years still be so treated?
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
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| Re: transmission fluid leaking [message #197505 is a reply to message #197465] |
Tue, 05 February 2013 20:05 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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I'd snug the pan bolts, run it till hot and check the fluid level. I doubt the filter is loaded up with friction material and restricted. Also the old run of filters was better. I don't get to concerned with small leaks on stored vehicles.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] transmission fluid leaking [message #197568 is a reply to message #197487] |
Wed, 06 February 2013 13:48 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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| Bruce Hart wrote on Tue, 05 February 2013 17:59 |
Jim,
Does Glyptal come in an spray can.
|
Yes, but a 12 oz spray can is about the same price as a quart of the brush on stuff.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] transmission fluid leaking [message #197570 is a reply to message #197568] |
Wed, 06 February 2013 14:08 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Also, the brush on, properly applied, leaves a thicker film when cured. To
add a little further info on the application, If you are applying it to a
pan that has already had ATF in it, the pan must be very clean with no
trace of ATF. I have a friend with a transmission shop, and he runs the
ones I have done through his automatic parts washer. ( Your wife's
dishwasher with a good load of Cascade Dishwasher soap will also work) P.S.
Don't let her catch you doing this, or say I told you to do it. (grin)
Jim Hupy
Salem, OR
78 GMC Royale 403
On Wed, Feb 6, 2013 at 11:48 AM, Ken Burton <n9cv@comcast.net> wrote:
>
>
> Bruce Hart wrote on Tue, 05 February 2013 17:59
> > Jim,
> > Does Glyptal come in an spray can.
>
> Yes, but a 12 oz spray can is about the same price as a quart of the brush
> on stuff.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
> _______________________________________________
> GMCnet mailing list
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| Re: [GMCnet] transmission fluid leaking [message #198734 is a reply to message #197570] |
Sun, 17 February 2013 12:20 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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| James Hupy wrote on Wed, 06 February 2013 14:08 |
If you are applying it to a pan that has already had ATF in it, the pan must be very clean with no trace of ATF. I have a friend with a transmission shop, and he runs the ones I have done through his automatic parts washer. ( Your wife's
dishwasher with a good load of Cascade Dishwasher soap will also work) P.S. Don't let her catch you doing this, or say I told you to do it. (grin)
Jim Hupy
|
Yep - don't let her catch you at it. The dishwasher does a great job cleaning tools and parts. Especially sockets. I always did it when she was gone. I had a tool box in the dishwasher and forgot about it. We had a "discussion" about that.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] transmission fluid leaking [message #198750 is a reply to message #198741] |
Sun, 17 February 2013 16:19 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Senior Member |
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According to scuttlebutt, the Rockwell Trans Pan does not have the same porous problem. However, to be fair, my first coach had the Ragusa pan and it did not leak. They are both nice pieces of work.
Rob's suggestion from Manny on using the aviation sealer is probably the best way to go.
Tom, MS II
with Rockwell pan ready to be installed next month.
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] transmission fluid leaking [message #198766 is a reply to message #198750] |
Sun, 17 February 2013 17:45 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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G'day,
Here's a link to the stuff:
http://www.permatex.com/products/product-categories/gasketing/gasket-sealants/permatex--aviation-form-a-gasket--no--3-sealant-liquid
-detail
You'll find "Where to buy our products" on the right side of the page.
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: Thomas Phipps
According to scuttlebutt, the Rockwell Trans Pan does not have the same porous problem. However, to be fair, my first coach had the
Ragusa pan and it did not leak. They are both nice pieces of work.
Rob's suggestion from Manny on using the aviation sealer is probably the best way to go.
Tom, MS II
with Rockwell pan ready to be installed next month.
--
1975 GMC Avion, under forever re-construction
Vicksburg, MS. 3.7 miles from I-20
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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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