Timming Cover Oil Leak on 440

[Bigun426]

Can any one reccommend an external sealent to apply to the the timing cover and oil pan joint that will hold up? Can't risk taking the balancer off again because the threads are in shaky condition. 

[elacruze]

Since it's already oily and inaccessible, you won't have much luck. Leave the damper on and pull the oil pan...yha that sucks too.

[bill440rt]

I'd like some tips, too. Mine is leaking on the passenger side at the locating dowel. You can see a very slight trickle with the engine is running.

My thoughts were to clean it really good with some brake clean or strong solvent, & dry it completely. Then, maybe a dab of clear silicone or high-temp gasket sealer. Or, if there is something else better I'm open to any suggestions.     I DON'T want to pull the front of the engine off if I don't have to.

[elacruze]

If I had to do something without taking it apart, I'd clean it as well as possible with liberal dose of Brakleen or Electric Motor cleaner, then blow dry with shop air. Let dry 10 or 15 minutes more, then apply Permatex Ultra Gray silicone sealer. Smash it into the cracks with a finger while wet. Ultra Gray is a little thinner than most other silicone RTVs and fills cracks pretty good.

Then say your prayers and let it sit 24 hours before starting.

[Cooter]

If I had to do something without taking it apart, I'd clean it as well as possible with liberal dose of Brakleen or Electric Motor cleaner, then blow dry with shop air. Let dry 10 or 15 minutes more, then apply Permatex Ultra Gray silicone sealer. Smash it into the cracks with a finger while wet. Ultra Gray is a little thinner than most other silicone RTVs and fills cracks pretty good.

Then say your prayers and let it sit 24 hours before starting.

Bingo! That's bout your best bet...

[FLG]

The right stuff in the aresol can might work even better. 

[62 Max]

I have yet to see anything that will fix a internal to external leak without taking it apart.Eventually,it will leak.Even though it's a pita,take it apart and do it right.

[Bigun426]

Thanks for all the imput!  Tried several sealants already that worked up to the point where oil would break the adhesion and start to leak again. Without the compression of the sealent between the parts nothing going to work. Permatext offers a sealent (can't remember the name ) that is formulated for external applications and stand up to a small amount of pressure and all the parts stores list it but don't stock it and won't order any. Found it on line but have to buy six tubes minimum. Going to try to get some but it looks like I'm going to drop the pan. At least I won't have to do the radiator antifreeze thing.

[bill440rt]

Just wondering, any news on this? 
How is the leak? Did you ever try that Permatex sealant you were looking for??

[Bigun426]

still sitting after all these years .finally retired nursing a bad back to health and finish up.Have to pull the timing chain cover anyway cause i left the oil slinger off.

[John_Kunkel]

Have to pull the timing chain cover anyway cause i left the oil slinger off.

FWIW, the factory eliminated the slinger in the late seventies.

[b5blue]

Also be certain the rim of the pan is flat before installing. I've used Permitex RTV with a gasket.

[metallicareload99]

Have to pull the timing chain cover anyway cause i left the oil slinger off.

FWIW, the factory eliminated the slinger in the late seventies.

on myy 440 I forgot it on the first refresh/"rebuild" and it didn't leak from the timing cover....