aeroaddict
MEMBER
Boise ID area
Engine; Titan 340, TT 218 hrs (yes a new engine).
#2 cylinder dropped out and had zero compression on a run up (thankfully).
Upon inspection, borescope shows carbon build up but not any burnt valves. Exhaust valve appears to be the problem. When cycling the prop thru and watching the valve mechanics, #2 exhaust valve does not fully close. Using your hand and putting slight sideways force on the springs, the vavle will snap close.
I have tried soaking it with MMO, and have done a couple of run ups, but no compression. Always the same issue described above.
Any ideas or solutions are apppreciated.
#2 cylinder dropped out and had zero compression on a run up (thankfully).
Upon inspection, borescope shows carbon build up but not any burnt valves. Exhaust valve appears to be the problem. When cycling the prop thru and watching the valve mechanics, #2 exhaust valve does not fully close. Using your hand and putting slight sideways force on the springs, the vavle will snap close.
I have tried soaking it with MMO, and have done a couple of run ups, but no compression. Always the same issue described above.
Any ideas or solutions are apppreciated.