Both my engines have one cylinder with low compression test readings. It’s been suggested to me to I can pressurize the cylinder through the spark plug hole. With valve cover removed, remove affected cylinder valve springs, attach a portable drill motor to each valve stem. With a little up pressure rotate the valve stem. I’m told this might correct some seat corrosion without having to remove the heads. Has anyone tried this?
any thoughts about this procedure? Would I be able or want to try and get lapping compound down along the valve stem?
The low cylinder s are105 & 122, all others 145
any thoughts about this procedure? Would I be able or want to try and get lapping compound down along the valve stem?
The low cylinder s are105 & 122, all others 145