intake manifold leaking oil into cylinders. any ideas?
Hey Guys
I have had this issue in the past with a couple of builds using this manifold on my iron heads. I thought it would be better now I am running edelbrock heads with an edelbrock manifold but its not. Not sure what causing it as the engine does not present like an engine with any manifold leaks. Steady vacuum and runs great apart from burning oil. I need to get this right as when i ad my boost i am worried it will now push the other way and force fuel into my oil thinning it etc etc
When I sit the manifold on with no gaskets the angles look perfect and because there are no gaskets there are small gaps each side as the manifold sits on the ends. When I put gaskets in it sits on the gasket and not on the ends so I have to seal the front and rear as per normal. When i take the manifold off there is a nice bead of sealant front and rear that tells me its not bottoming out.
My edelbrock gaskets look to be good quality and are .060 thick. The only thing that i can think is i am not torqueing it down enough as my torque wrench starts at 10FT LBS and i am torqueing to 12FT LBS It doesn't appear to be too accurate down low but the bolts feel pretty tight by hand when i checked them. I could use 2 gaskets but would rather find the cause and fix it.
cheers
Hey Guys
I have had this issue in the past with a couple of builds using this manifold on my iron heads. I thought it would be better now I am running edelbrock heads with an edelbrock manifold but its not. Not sure what causing it as the engine does not present like an engine with any manifold leaks. Steady vacuum and runs great apart from burning oil. I need to get this right as when i ad my boost i am worried it will now push the other way and force fuel into my oil thinning it etc etc
When I sit the manifold on with no gaskets the angles look perfect and because there are no gaskets there are small gaps each side as the manifold sits on the ends. When I put gaskets in it sits on the gasket and not on the ends so I have to seal the front and rear as per normal. When i take the manifold off there is a nice bead of sealant front and rear that tells me its not bottoming out.
My edelbrock gaskets look to be good quality and are .060 thick. The only thing that i can think is i am not torqueing it down enough as my torque wrench starts at 10FT LBS and i am torqueing to 12FT LBS It doesn't appear to be too accurate down low but the bolts feel pretty tight by hand when i checked them. I could use 2 gaskets but would rather find the cause and fix it.
cheers
