leaky pan gasket
October 25th, 2007, 06:24 PM
#1
Registered User
Thread Starter
Join Date: Oct 2006
Location: New Bremen Ohio
Posts: 221
leaky pan gasket
okay. i am on about my forth time messing with the pan gasket since dropping the transmission in my 65 olds dynamic 88 w/ th400. it will not stop leaking around the front of the pan near the dust cover. i have replaced the gasket twice. the last time i dropped the pan i put ultra gray silicone sealer down, then the gasket and more silicone on top of that. it is still leaking. i put a level on the pan lid it shows level. im going to order another gasket and try again, but im about ready to weld it shut. does anyone have any ideas? can you buy new pan lids yet for these? chris
October 25th, 2007, 10:31 PM
#2
Seasoned beater pilot.
Join Date: Jan 2007
Location: Chicago
Posts: 5,468
October 26th, 2007, 05:53 AM
#4
Registered User
Join Date: Jun 2006
Posts: 569
Try to get a cork gasket and glue it to pan with copper coat not the spray turn upside down put weight on it & let dry, Then coat other side & bolt on lightly in a pattern.do not smash the gasket Use carb cleaner to clean surfaces
October 26th, 2007, 11:06 PM
#5
Registered User
Thread Starter
Join Date: Oct 2006
Location: New Bremen Ohio
Posts: 221
ive been using the cork style. where do you get this copper coat? your not talking about the copper color silicone are you? do you know the torgue setting for the pan? i believe its 13 pounds, but not sure. chris
October 27th, 2007, 04:57 AM
#6
Registered User
Join Date: Jun 2006
Posts: 569
NAPA & Orielys both have it here, Not sure on torque,13 inch pounds, ? I just snug the bolts down with a 1/4 " ratchet from right side to left in a pattern.Don't use silicone it has a tendency to squeeze out, your better off with no sealer. Copper coat comes in a brush on type can Shake well
October 27th, 2007, 08:39 AM
#7
Moderator
Join Date: Jul 2007
Location: Edmond, OK
Posts: 16,009
Even if the pan you have is flat it still may have dimples around each bolt hole. If the bolts were over torqued it could cause the gasket surface to have waves in it. This will lead to a bad seal. Be careful when using any kind of sealing compound on an auto transmission pan. An automatic transmission is not resistant to any kind of debris or gasket material in the fluid.
October 29th, 2007, 03:57 AM
#9
Jim's rare 80
Join Date: Feb 2007
Location: Hamilton, Ont. Canada
Posts: 206
Also make sure your bolt holes aren't recessed from past tightening. A trick I do with these issues is to put a 7/16 " socket on the bolt side of the pan, and tap the tranny side of the pan with a 1/4" short socket extension. This presses the bolt holes toward the bolt, and helps pull the pan tight between them. Just an idea.
October 29th, 2007, 07:25 AM
#12
Registered User
Thread Starter
Join Date: Oct 2006
Location: New Bremen Ohio
Posts: 221
ive replaced the front and rear seals. the leak appears to be at the front of the pan gasket next to the torque converter cover. i dont think its the front seal. its been replaced, not that that means anything. ive taken the dust cover off thinking it was the front seal, but its been dry in there, so thats what leads me to believe its the front end of the pan gasket.
November 2nd, 2008, 11:19 AM
#14
Registered User
Thread Starter
Join Date: Oct 2006
Location: New Bremen Ohio
Posts: 221
it actually turned out to be at the shift linkage. there is a oring that goes inside the side of the pan. so turned out to be an easy fix just lots of headaches until i figured it out. chris
Thread
Thread Starter
Forum
Replies
Last Post
dallasite21
General Discussion
2
June 20th, 2010 05:37 AM
