Has anyone had a problem with the 1250 wicking oil from the valley through the bottom of the gasket then into the intake ports?
It's just that I am having oil in manifold issue even after PCV etc removed. I suspected either unsealed rocker studs - not the case, valve guides - not the case.
I installed new 1250 smeared with ThreeBond 1207B silicon on both sides, ran engine for 45 minutes & then removed the upper.
Then slid a borescope down each port and to my horror it appears there is oil weeping through the gasket in every port. Again no oil from valve guides or rocker studs.
The oil I am using is Penrite Sin10 ( 10w/70 Fully synthetic ) - could this be a factor?
Have read somewhere that felpro 1250s-3 is better.
Any recommendations?
Richie
It's just that I am having oil in manifold issue even after PCV etc removed. I suspected either unsealed rocker studs - not the case, valve guides - not the case.
I installed new 1250 smeared with ThreeBond 1207B silicon on both sides, ran engine for 45 minutes & then removed the upper.
Then slid a borescope down each port and to my horror it appears there is oil weeping through the gasket in every port. Again no oil from valve guides or rocker studs.
The oil I am using is Penrite Sin10 ( 10w/70 Fully synthetic ) - could this be a factor?
Have read somewhere that felpro 1250s-3 is better.
Any recommendations?
Richie