emiller775
Active Member
- Joined
- Jan 5, 2013
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We replaced the #1 cylinder on our "decked" O-360 with a new ECI jug due to low compression. The old cylinder was leaking past the rings and had a fair amount of pitting. The pushrods were too long according to the mechanic when checking dry tappet clearance(DTC)(yes the lifters were collapsed). The pushrods were shortened by .045 and reinstalled. New clearance is .078 and .050(feeler gauge), within the .028-.080 range according to the mechanic.
Running it now I feel a vibration around 1800 rpm which smooths out at higher rpm. Full power static runup is normal. Idle is smooth.
Does anyone know if possibly the intake valve lifter might not be pumped up completely allowing the valve not to open adequately at lower power settings causing the vibration.
Or is it all in my head.
Running it now I feel a vibration around 1800 rpm which smooths out at higher rpm. Full power static runup is normal. Idle is smooth.
Does anyone know if possibly the intake valve lifter might not be pumped up completely allowing the valve not to open adequately at lower power settings causing the vibration.
Or is it all in my head.
