Originally Posted by thawk4560
I did however do a compression test on my engine since I have posted last just to see how that is doing. All 4 cylinders read 120+ which I read is a good thing? I'm not sure on the valve seats, is there a recommended test for that?
as far as compression reads, they should be within a certain range of the recommended specs. i.e. 120 being the base number, +/- 5. not sure what the FSM suggests what the actual numbers are, but hopefully someone can chime in on that for ya.
sorry, i re-read my comment on the valve seats. but the valve seat shouldn't have much to do with your oil in the intake manifold or breather tube, but more so if the valve guides
are leaking, because oil would find its way down the intake valve stem/guide, and get blown back into the manifold.
plus, your compression reads would tell you more about the valve seats for each cylinder if anything, as long as the gauge holds a reading and not drop slowly.
the obvious should also point to a loss of power and a bit of smoke, which could spell catastrophic at that point.
there is a way to test the seals on the valve seat, but requires that you take the head off and bring it to a shop to have it done. on a couple occasions i've done this sort of test myself at home.
basically you put the head on the work table and turn the head on its side so the intake/exhaust ports are pointing straight up. then you fill the ports with some sort of fluid and watch for leaking at the valves on the combustion chamber side.