Kahuna
Moderatoring
Need ideas for troublshooting.
IO-540, AFP.
Symptom,
Below 1500 RPM, #2 cylinder drops cold. Misses, no EGT, CHT drops.
~1500rpm, cylinder comes back alive, but is running ~100degF egt hotter than normal/others. Leaning it shows the cylinder continues to lean and peaks early indicating cylinder is lean. Mag checks good.
Bring RPM up higher ~2000rpm and the cylinder functions normally. EGT in line with others. Mag checks function as expected.
Actions so far.
1. Compression check hot and cold GOOD. 78/90
2. Swap injectors, swap injector lines around. Problem stays with the one cylinder. (I though for sure plugged injector.
3. Rockers snug, nothing unusual under rocker cover.
4. Oil change, filter clean.
5. Plugs look good.
6. Intake tube tight. No sign of leaks at cylinder or sump
7. Cylinder inspection superficial scan all around it looks good.
Ideas from the brainiacs?
THanks
IO-540, AFP.
Symptom,
Below 1500 RPM, #2 cylinder drops cold. Misses, no EGT, CHT drops.
~1500rpm, cylinder comes back alive, but is running ~100degF egt hotter than normal/others. Leaning it shows the cylinder continues to lean and peaks early indicating cylinder is lean. Mag checks good.
Bring RPM up higher ~2000rpm and the cylinder functions normally. EGT in line with others. Mag checks function as expected.
Actions so far.
1. Compression check hot and cold GOOD. 78/90
2. Swap injectors, swap injector lines around. Problem stays with the one cylinder. (I though for sure plugged injector.
3. Rockers snug, nothing unusual under rocker cover.
4. Oil change, filter clean.
5. Plugs look good.
6. Intake tube tight. No sign of leaks at cylinder or sump
7. Cylinder inspection superficial scan all around it looks good.
Ideas from the brainiacs?
THanks