Originally Posted by sqzbox
I've always used Fel Pro myself and never had issues using sealer on the gasket to pan. In the perfect world tnsmith10 you could get away with none
providing your pan bolts haven't been tightened by Magilla gorilla! To use none on the tranny pan to gasket will be ok if the pan is prepped properly by checking the bolt holes, tapping them flat again, having a good clean surface,
and using a torque wrench to keep from over tightening the bolt's.
I figure he's not going to use a torque wrench and if he has to ask how to do it, he doesn't have the experience to do it by feel. And, KMatch, that's why you give the sealer time to set up before you install the pan, so it doesn't squish out from the edges. A 1/8th bead will do the trick and 1/4 in. is too much. Sealer also helps position the gasket that most of the time is folded in the box it comes in which makes it a pain to line up the holes when bolting up the pan. I'm not saying this is the only or correct way but face it, a first timer is looking at a good possibility of leaks from installing the gasket dry.
good point in your 2nd paragraph, but for over 20+ years, as a 2nd generation transmission mechanic and having my father use nothing but cork with NO sealer at all, and just taught to make sure the surfaces are clean and dry. as far as torque goes, with a cork gasket, you can see when the torque is ok on the gasket as it will just slightly start to push out from the side.
where i currently work, we use cork gaskets, and the builder always uses a light setting on his impact to seal the pan. so when i get back from a road test from one of his builds, i always go back over the pan bolts as the cork will settle and the heat will bond the gasket to the surface. i usually get a good 1/4-3/4 turn extra with my speed handle, and do not have pan leak issues.
if sealer is to be used, i highly suggest that it be used by its self and with the same rules i mentioned above, good, clean and dry surface on the pan and case, roughly 3/16 in of sealer evenly spread on the pan and given 10-15 minutes to set. then put up and torque to spec.