AlOstad_84

Hi There,

i discovered an oil leak on my last run from the front left side of my engine, much more of a splash only whilst i was WOT.

since it was the other side of the oil cooler and seems to be splashing onto my fuel filter i figure it might have been from the crank oil seal.


after removing the damper to change the oil seal, i noticed that the part of the damper which fits into the oil seal seems a bit rough, so i guessed i should get a new one installed "since i believe was the reason of the oil seal to leak oil on high rpm"

now! my local dealer does not have a damper available, however i managed to get hold of a damper 3963532 number embossed on the back of it, seems to be the right one however has a different number to my previous one
# 10216339.

has anyone used same damper ( 3963532 ) on a 502 mercruiser before? should it be OK?

please help!

ezstriper

ch with a GM dealer on what needs to be used, part # may have been changed, but they make a thing called a speedy sleeve that goes down on the balancer to make surface smooth again, may require the matching seal can't remember, but way cheaper than new damper

airjunky

Yea definetly try to save the dampner, i have been able to polish them out if its not too bad ,gen 5 sometimes you can move the seal a skosh out of the timing cover and get it out of the worn spot.
That 454-502 mag stuff , sometimes has the same casting # but is balanced different.
It its toast try scoggins dickey , and try to cross from a 502 crate with rectangular port heads.