Man am I angry!!!!!!!!!

[craftybigdog]

I just changed the filter and trans fluid on my 2000 chevy 1500 2wd van and the gasket was a cork gasket I put a little sealent on both sides and torqued it down and sure enough it leaks what a pain Im gonna try the rubber gasket next any ideas does this happen alot?????????????????

 

[Glen Pratt]

You shouldn't be using silicone sealant with a cork gasket. That may be part of the problem. Was the transmission pan flange nice and straight? -Glen

 

[dan_gilson]

Another thing about cork gaskets...

You normally only want to seal one side generally with high tack (the red spray stuff). This is so the other side has a chance to draw in fluid and swell. You spray it on a wait for it to become almost dry so that you can place the gasket and not have it move. You then can mate it without the worry that it will move.



Depending on where the cork gasket is you might be able to get rid of it all together and just use RTV. This is probably not the case for a trans gasket. But is the case for differential covers now.



If you bend the flange by over torqueing it you will probably be in for buying a new cover.

 

[Snow man]

2 things,1st problem you used inferior parts,this is the first mistake. Insist on the rubber gasket,. 2nd mistake ,silicone or gasket-never both. In this day and age it should be illegal to sell cork gaskets,they are obsolete,and always weep at best,and leak more often than not after a year or less. I find Napa,and ATP have very high quality rubbber gaskets in there service kits,in fact the one on the pan of my Ram,(its a a Napa)has been off 7 time's and i still havent needed to replace it,its still doesnt leak.

 

[Hammer]

Same things happen to the 727 and 904 Chrysler trannies when you use cork or over torque them,,Service bulletin had the mechanics taking a small hammer and after torqueing the pan tapping the outer lip making sure it seated itself and then rechecking the torque of the bolts,,There is one other soultion though that may help,,Insert a rather large jack under radiator cap after loosening it,,Jack cap high in the air and then push van into a place a rather large tow truck can get attached to it,,Send Chuvy van off to be crushed and roll a Dodge van under radiator cap,,Lower cap into place and twist... ... NO MORE PROBLEMS... ..... Andy

 

['956Wheel]

Silicone

I never did care much for silicone for sealing oil filled anything! Permatex in a tube or better yet Loctites gasket sealer in a "cheeze wiz" type can, I forget the name of it, there is a high temp and a regular, (red & black). I used it on the front gearcase cover (KDP), no gasket and no leaks.



RTV is good for H20... IMO



Mike

 

[illflem]

Mike I'm with you. I cringe whenever I work on a rig that has that blue or orange gunk squeezing out from the gaskets. Know that a inept backyard mechanic has been in there first and don't know what to expect to find wrong.

 

[craftybigdog]

Hey guys thanks for the input I really appreciate it, yeah I guess us backyard mechanics have to make do but you will never learn unless you ask, maybe I should stick to flying planes in the Air Force and leave this stuff up to the pros huh at least thats what Ifflem thinks!!!!!!!!!!!!!!!!!!!!!!

 

[illflem]

craftybigdog, no chop on you intended, I don't know where to even start on a plane. Live and learn. It's just that the blue goo usually comes with bent flanges, overtightened and stripped bolts from folks reefing down to try and stop leaks. A definite warning sign.

 

[craftybigdog]

None taken, I replaced it this morning with a rubber gasket and no goo and torqued it down properly and I wnderstand where you are coming from after cleaning all that goo off that I put on oh what a mess take care and happy mem. day!!!!!!!