On my swift 44 the port engine has a little visible shake between 800-1400rpm then smooths out above that….that engine also usually has one to two lbs more boost than the starboard for a given rpm which I have attributed to the props not balanced which I intended to fix….the engine shake I can also see a slight wobble of the shaft where it goes into the seal at that rpm, I guess it is slightly out of alignment or maybe related to the prop? Only had the boat 6 months but on the survey the props looked fine thanks
Engine shake
- Thread starter Beaver77
- Start date
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Comodave
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The easiest thing to check is engine alignment. Pretty easy thing to do.
DennisB1
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Your engine could be out of alignment or you have a bent shaft. Check both. Requires feeler gages and dial indicator to make measurements.
Also could be engine problems. Injectors or valve adjustments. Check the alignment first which is best down with boat in the water.
Also could be engine problems. Injectors or valve adjustments. Check the alignment first which is best down with boat in the water.
C lectric
Guru
Prop dings can cause shaking. It is often hard to see those dings unless the prop is on a bench or use a stand to hold a measuring tape next to the prop when out of the water. Usually requires a second helping hand pr two,
Shaft can be watched for any sign of misalignment which shows as wobble or shaking.
Shaft can be watched for any sign of misalignment which shows as wobble or shaking.
