Weep/Seep = Is when it peppers around the split of head to cylinder, cylinder to case, etc. - Brake clean area and monitor is the fix.
Leak = Is when it travels down and onto another part of the engine and ends at the floor of the garage - Change out gaskets/orings.
Compression loss exits 3 ways: In valve... ex valve... head gasket.
Say a paper gasket is used. They install a steel ring so the flame front is heating the ring. A hot spot can heat the ring [area] to an orange glow, eat thru the ring, then burns the paper to the point of reaching the outside of the paper gasket and out the split of the head to cylinder = Compression loss. Valves can burn, cause pie cut cracks off the face off the valve, can no longer seal the air, thus leaks out compression. Bent valve does not sit flat on the seat surface and loss of compression happens.
If the other cylinder does not leak at the gasket, and both have the same compression, it's not the steel ring being burned, its rather an old original gasket that no longer can hold back oil.
Planned obsoletes like bulbs are looking at the same longevity as paper gaskets. The other cylinder is about to give up gasket wise, so it would be wise to freshen both cylinders. Ass me how I know?
Signed,
NOLTT (no one listens to turtle)
