burnt valves

[bye_all_c_ya]

would burnt valves show under a compression test or is there a chance on still getting 140 across 4 pistons with burnt valves

[newbstar*]

I would say valves are ok if no pressure loss.

[THE MASTER]

burnt valves will cause a loss in compretion psi . easy way to see if its the valves is do two compretion tests

1-dry compertion test take note of your readings

2- wet comp test . just add a few squirsts of oil down through the spark plug hole - if your readings go up its the rings . if the reading stay the same as the dry test its your valves

the above test is just a guide to find wots wrong the test dont always work

[Tony Walker]

if you have 140 across all 4 then you it should run fine. your problem lies elsewear.

[xchipx]

burnt valves will cause a loss in compretion psi . easy way to see if its the valves is do two compretion tests

1-dry compertion test take note of your readings

2- wet comp test . just add a few squirsts of oil down through the spark plug hole - if your readings go up its the rings . if the reading stay the same as the dry test its your valves

.....Or headgasket problems