Replacing trans pan gasket...
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Junior User
Joined: Jun 2007
Posts: 82
Likes: 1
From: Pennsylvania
Replacing trans pan gasket...
Hey guys... I did a tranny service about 1000 miles ago on my 89 F-150, 302, AOD. The generic gasket that came with the filter has leaked since day two...I'm looking to replace it with a FelPro gasket. Should I use some sort of form-a-gasket sealer with this gasket to assure me of a good seal? I don't want to go thru this again for a long time.
Thanks in advance.....
Thanks in advance.....
Fleet Mechanic
Joined: Aug 2007
Posts: 1,836
Likes: 261
From: Piney Woods of East Texas
Some transmission only require a rtv seal. If you use a gasket, I only use sealant on the part (pan) being removed. This makes cleanup a lot easier.
I have never had a pan leak that only required the RTV sealant. Most gaskets over a period of time will start to seep. The main reason gaskets leak are due to over tightening, and the pan not being flat.
I have never had a pan leak that only required the RTV sealant. Most gaskets over a period of time will start to seep. The main reason gaskets leak are due to over tightening, and the pan not being flat.
Fleet Mechanic
Joined: Aug 2007
Posts: 1,836
Likes: 261
From: Piney Woods of East Texas
I like laying them on a flat surface. This way you can see if the lip is bend down where someone may have pried off. If you decide to use it on both surfaces, it takes a long time for the transmission to stop dripping fluid. Which makes it real hard to seal. Felpro makes a special pan gaskets for automatics, sealed so the fluid does not seep through. Just don't over tighten. Most only call for around 12-15 in-lbs. torque.
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