Tips for sealing trans pans?
#425191
07/31/09 10:35 PM
07/31/09 10:35 PM
|
Joined: Jan 2003
Posts: 3,129 Somewhere near Palm Springs
ConvertiBee
OP
master
|
OP
master
Joined: Jan 2003
Posts: 3,129
Somewhere near Palm Springs
|
Dang it man! I've got to go in again 1st thing tomorrow morning. '68 B-Body, 727 trans. Last time, I sprayed the gasket with Copper spray-a-gasket, torqued it correctly, and it's been leaking ever since. I checked the pan for dimples with a straight edge and it was perfect, clean mating surface too. Currently it appears that fluid is coming out through the gasket seal.... I'm using an ATP parts store gasket; equivalent or better than an OEM gasket. Soooo... should I install the new gsaket dry? Any other sealant I should be using? Do they really get torqued THAT lightly? (150 inch-Lbs)
Last edited by ConvertiBee; 07/31/09 10:42 PM.
|
|
|
Re: Tips for sealing trans pans?
[Re: ConvertiBee]
#425193
07/31/09 10:45 PM
07/31/09 10:45 PM
|
Joined: Dec 2007
Posts: 18,157 Mass
DAYCLONA
I Live Here
|
I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
|
Tranny gaskets, I generaly spray glue to the pan lip with 3M spray adhesive Super 77 and apply to the pan side, so it dosen't slip out of location, and leave the gasket to tranny case side dry,.....make sure the pan lip is flat, and free from defects, lumps, dents, etc hammer/dolly lightly as needed,.....and I usually hand tighten in a X pattern all the bolts to the point of NEARLY drawing the flange in, nothing more! you go just that little too much,..... and presto, LEAKS!,....forget the torque wrench, use "feel" and your eyes to tighten the bolts
Mike
|
|
|
Re: Tips for sealing trans pans?
[Re: ConvertiBee]
#425196
08/01/09 03:30 PM
08/01/09 03:30 PM
|
Joined: Jan 2003
Posts: 25,977 Rio Linda, CA
John_Kunkel
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 25,977
Rio Linda, CA
|
Pan leaks that don't stop after repeated gasket changes might not be coming from the pan gasket itself but from a leak above that runs down to the protruding gasket before dripping off.
The INTERNET, the MISinformation superhighway
|
|
|
Re: Tips for sealing trans pans?
[Re: stumpy]
#425197
08/01/09 03:44 PM
08/01/09 03:44 PM
|
Joined: May 2003
Posts: 13,202 aZLiViN
J_BODY
I Live Here
|
I Live Here
Joined: May 2003
Posts: 13,202
aZLiViN
|
Quote:
Hit the Dodge house and get the new reusable sandwich style gasket.
IF it is indeed a gasket leak...THIS is the BEST info for your issue.
I've had the pan off my truck three or four times.....same gasket.
I've had the pan off the race car at least six times.....same gasket.
I torque them to 130 inlb.
|
|
|
Re: Tips for sealing trans pans?
[Re: J_BODY]
#425198
08/01/09 04:14 PM
08/01/09 04:14 PM
|
Joined: Jan 2003
Posts: 3,129 Somewhere near Palm Springs
ConvertiBee
OP
master
|
OP
master
Joined: Jan 2003
Posts: 3,129
Somewhere near Palm Springs
|
Thanks for all the tips guys! I re-did it this morning and... success!! I surfaced the pan using a big hard rubber block and 220 grit. I tell Ya: once you make a couple of light passes over the pan mating surface to show you what's high and what's not, it's amazing that it even held in as much fluid as it did! The factory design of the pan mating area is poor: rolled surfaces and dimples that conspire to make little pathways for fluid to leak out. I used a dry standard gasket (no sealant) and used my 1/4" socket set with the nutdriver handle to lightly cinch the bolts down. Not a drop of wet fluid to be seen, after a test drive and 4 hours of sitting. Yay!!!
|
|
|
|
|