CMF

Hello!

Can you guys help me?

I changed the balance and crankshaft O-ring seals, but oil still leaks.
Crankcase went is ok, Pistionrings are changed. I use Castrol RS oil
I`m running with 18-20 PSI

cmf

Joe Jackson

Did you replace the sleeves for the balance shafts along with the shaft seals (in addition to the o-rings)? Did you replace the oil pump drive gear which the crankshaft seal rides on? If not, these pieces can get grooves worn in them and leak even with new seals.

CMF

Yes I replaced them all.

Joe Jackson

So do you have any idea where the oil is coming from? At this point, I'd be taking shots in the dark without further direction.

CMF

I think it´s comming from the Cranckshaft.

Joe Jackson

Did you reseal the oil pump while you were in there? Did you replace the o-ring between the oil pump drive gear and the thick washer?