hello sl6 sages- need your best and always valued advice- may be question for the doctor. my 77 sl6 aspen wagon has a rebuilt pep boys engine long block which i put in 100000 miles ago. it has always run well and has had no problems. except one which i want to fix this summer. the timing gear cover which i had to reinstallfrom the old engine has leaked oil from the crankshaft hole against whichis pressed the dynamic balancer which is then bolted down. was there any kind of a special round gasket which went in there? leaks about a quart between 3000 mile oil changes. what do you think. thanks tons paladin

Sounds like you're talking about the front oil seal, which IS pressed into that hole in the timing cover. Here's a few pics I took from a Haynes repair manual for you. Don't worry if the photos look different than your cover, these are for a V8 engine. They didn't have the same photos for the /6. The first shows how you can drive out the old seal with a punch from the front of the cover. Be careful not to bend the thin edges of the timing cover itself. The second shows how to use a special tool to drive the new seal back into the cover. I just used a small block of wood to protect the seal and drove it back in. The third shows installation of a micro sleeve to repair the wear groove on the hub at the back of your vibration damper (harmonic balancer). I originally thought the groove was there for the seal to "pop" into, until I read this manual. As strange as it sounds, the groove was worn into the metal by the rubber seal. Make sure you spread a thin layer of sealer inside the micro sleeve first. It makes it easier to slide on and also ensures proper sealing of the groove. TAKE YOUR TIME AND TAP ON SLOWLY. Use a block of wood here also. This sucker is very thin and will bend easily.
The front seal and micro sleeve should both come with instructions.








Hope this helps,
Jerry

_________________
There's a difference between ignorance and stupidity.
Ignorance is not knowing any better.
Stupidity is knowing, yet doing it anyway.

Yes, sounds like you need a new seal in the T. Cover.
Pry the old one out & press a new one in, I found a PVC "sprinkeler pipe" fitting at the hardware store that fit right into the back of the new seal, that made it easy to tap-in without bending the thin sheetmetal outer shell.
DD