czwalga00gt

iTrader: (3)

My crank is pinned (came like that with my shortblock I bought). The damper is keyed, the leak is coming from behind the pulley.

Is it standard to put rtv on the crank pin or what? There's no leakage for about 1-2 minutes, then it leaks pretty good.

OUTLAWZ RACING

iTrader: (9)

Its that front cover seal where the balancer pulley goes, that is leaking. it may have been damage or just worn. Is the pulley all the way on it should be a tiny gap betwwwn the two.

czwalga00gt

iTrader: (3)

I pulled the front cover, the seal looks fine atleast for the amount of oil leaking out of it.

OUTLAWZ RACING

iTrader: (9)

So the back of your pulley is coverd in oil? That seal has to be perfectly centerd and teh pulley has to be almost flush with it. are u running a stock dampner? oh and did u apply some rtv at the base of the cover where it meets the pan?

czwalga00gt

iTrader: (3)

Its definatly not leaking from the cover, as its on the pulley and swinging it all over the engine.

The damper is not stock it's keyed, thats where I think its leaking from. I noticed that it did have some old RTV left in the keyed slot on the damper from the previous owner.

ls1290

iTrader: (20)

Correct. The front and rear covers have to aligned correctly and not just eye-balled. If the front cover is not aligned correctly, oil will leak from the crank seal, get on the balancer, and everywhere else.

czwalga00gt

iTrader: (3)

Yeah the more I think about it it can't be the pinning kit, otherwise it would be leaking from the front of the pulley not the rear.


So you're saying its not the seal was bad, the entire cover was mis-aligned, would probably make sense. Any tips to align it? I try some searching.

elias_799

iTrader: (8)

timing cover needs to be aligned properly, but i think it is too late for that now, you will need to replace the front main seal.

if you do not have the front cover aliment tool , just install the front timing cover and leave the bolts loose then install the balancer all the way inn and the tighten the bolts on the timing cover.

Snyper

iTrader: (27)

Mines leaking too..ive never heard of aligning the cover before..

elias_799

iTrader: (8)

that is why it is leaking

all ls series engines do. most others do not

XtremeDime

iTrader: (16)

Ive never aligned my cover either...no oil leaks here. Ive never read about aligning the cover on any how tos

elias_799

iTrader: (8)

that is the way gm wants you to do it.

as i have stated before, if you do not want to buy the aliment tool just use the balancer to align the timing cover. did that on my friends car 6 month ago and it is nice and dry, i did not even replace the front main

C5kid

iTrader: (12)

I had this oil leak, drove me CRAZY. Finally I went back in aligned teh cover w/ a new seal and it stopped. PIA, but you can either deal w/ a constant oil leak or align it and have a nice clean motor.

OUTLAWZ RACING

iTrader: (9)

Yeah if the cover is not centerd then the pulley would ride on the seal. It dosent take much either. And the way elis said to do it works just fine I done to mine also. I had a leak that just coverd my pulley and made my belt slip and all types of wrong stuff, but once i got it straight it was fine. Eye balling the seal does no justice either it is recomended that its change out if you ever remove your pulley.

LS1DIME

iTrader: (18)

I always install the front cover bolts to the block loose and then torque the bolts that go through the oil pan to 18ft lbs and then torque the front cover to block bolt to 18 ft lbs and never had a leak yet!!