| Ragusa Trans Pan Leakage Resolved [message #209825] |
Tue, 04 June 2013 11:54  |
Jon payne
Messages: 495
Registered: May 2008
Karma: 1
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Senior Member |
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A few weeks ago I mentioned that that the new Ragusa pan I installed was leaking at the rear flange. I increased the torque by about 10% but still leaked. So I removed and inspected the pan and trans flange and could not find anything obvious that would cause the pan to leak. I then placed the pan on my cast iron table saw and with a .002" feeler gauge checked for any gaps between the flange and the table. None was found.
So I replaced the gasket with a rubber gasket I got from NAPA (the previous gasket was cork). First thing I noticed was the rubber gasket was ~ 1/3" thicker than the cork. I installed the pan with this rubber gasket and after 300+ miles no leaks.
So if anyone that has a Ragusa pan that leaks and using a cork gasket, you might want to try the rubber gasket.
Jon
Jon Payne
76 Palm Beach
Westfield,IN
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| Re: [GMCnet] Ragusa Trans Pan Leakage Resolved [message #209897 is a reply to message #209826] |
Wed, 05 June 2013 00:31  |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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You will find that the gasket area on the inside by the holes can be very
critical as the fluid will migrate to the hole and then run down the hole
as bleed at the head of the bolt.
Keep in mind that as long as the engine is running, the fluid level will
stay at or below the gasket in, but when it is shut off, then it can slowly
rise 3-4 inch above the gasket line and it will force a leak not only at
the trans, but at the trans. tube on the final drive.
I have seen lot of leaks at the tube after one leaves it parked for few
weeks and did not see any leak.
I had to demand our guys to reseal the tube against their judgement, then I
told they are not that smart as they think.
On Tue, Jun 4, 2013 at 10:04 AM, Dan Gregg <gregg_dan@hotmail.com> wrote:
>
>
> That is the kind of information we like to see passed along Jon.
> Thanks,
> Dan
> --
> Dan & Teri Gregg
> Dexter, Mo.
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> http://danandteri.blogspot.com/
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Ragusa Trans Pan Leakage Resolved [message #209918 is a reply to message #209897] |
Wed, 05 June 2013 08:06 |
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WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
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Senior Member |
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| jimk wrote on Wed, 05 June 2013 00:31 |
You will find that the gasket area on the inside by the holes can be very
critical as the fluid will migrate to the hole and then run down the hole
as bleed at the head of the bolt.
Keep in mind that as long as the engine is running, the fluid level will
stay at or below the gasket in, but when it is shut off, then it can slowly
rise 3-4 inch above the gasket line and it will force a leak not only at
the trans, but at the trans. tube on the final drive.
I have seen lot of leaks at the tube after one leaves it parked for few
weeks and did not see any leak.
I had to demand our guys to reseal the tube against their judgement, then I
told they are not that smart as they think.
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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GMCnet mailing list
Unsubscribe or Change List Options:
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More good information to file in our memory banks. AND, it is free from our experts. What other group is this sharing with help?
Dan
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: Ragusa Trans Pan Leakage Resolved [message #209929 is a reply to message #209825] |
Wed, 05 June 2013 09:03 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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I don't get too upset over minor seal leaks as I keep fluid levels checked. So I'll not worry about the Dexron under the GMC or under the 84 Riviera with TH325. Thank for reassuring me Jim. Driving good, sitting bad.
John Lebetski
Woodstock, IL
77 Eleganza II
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