Ever since my rebuild ive been burning oil on Cylinder 4. After a leak down, and compression check Ive determined that the source of the oil leaking is from the valve stem seals. I found the one of the seals on the exhaust side were very loose fitting. The head was rebuilt and upon inspection the guide appeared and felt alright, or at least not bad enough to register on a vacuum gauge. Are there different size seals or brands that a more trusted than others. I used DNJ Viton seals from RockAuto and now that cylinder has Supertech iirc seals in it and its still leaking and burning oil. I would like to try one more time before removing the head and have a machine shop look at it again.
Advice would be appreciated.
Thanks
~JDMMA70
Advice would be appreciated.
Thanks
~JDMMA70