What are the causes of crankshaft misalignment?
Reasons for Crankshaft Misalignment
- Damage or wipe-out of the main bearing.
- Loose engine foundation bolt leading to vibration.
- Deformation of ship’s hull.
- Crack in the bearing saddle.
- Loose main bearing bolt leading to damage of main bearing.
What causes damage to crankshaft?
INSTALLATION FAULTS AND WEAR ARE THE MOST COMMON CAUSES OF DAMAGE TO THE CRANKSHAFT AND CRANKSHAFT BEARINGS. Softening of the bearing journals due to previous bearing damage or improper modification work, e.g. excessive regrinding. Incorrect tightening torques and/or old bearing cap screws were used.
Why are there no alignment marks on my crankshaft?
This encoder ring was pushed off the back side of the harmonic balancer by the belt coming off the pulley and was spinning freely. I removed the harmonic balancer (which has no alignment keyway) and found that the encoder ring was not damaged but, is simply pressed into the pulley with no alignment marks either.
How do you remove a crankshaft Pully alignment?
Remove the engine front cover. For additional information, refer to Engine Front Cover in this section. Remove the timing chain tensioner. Compress the timing chain tensioner and insert a paper clip into the hole. Remove the bolts and timing chain tensioner. Remove the RH timing chain guide. Remove the timing chain.
How to fix a misaligned crankshaft with camshafts?
When the cams are in position, then rotate the crankshaft to TDC and install the belt. Ooh, thank you, that is a tip no one else had for me. That even sounds like it may help with the pressure somewhat. Assuming the clearance for the valves or lack there of was increasing the pressure.
Is the pulley keyed to the crankshaft?
WARNING: The pulley is not keyed to the crankshaft, this procedure is the only way to establish the proper relationship between the crankshaft pulley and the engine, etc., etc., Basically, you need to get the engine at TDC, and then use the locating bolt to align the pulley when reinstalling.