6
Chapter 9
PERFORMANCE DIAGNOSTICS
PROBLEM POSSIBLE CAUSE POSSIBLE FIX
Excessive vibration Material obstructing propeller Reverse engine to remove material
Bent drive propeller sha Call authorized Regal dealer
Bent propeller blade Repair/replace propeller
Noisy drive bearing Call authorized Regal dealer
Damaged drive casting Call authorized Regal dealer
Poor performance Trim incorrect Adjust trim
Unbalanced load Adjust load
Engine problem Call authorized Regal dealer
Engine speed/rpm is low Growth on hull Hoist vessel; clean bottom
Poor quality fuel Call authorized Regal dealer
Accumulation of bilge water Check for leaks
Trim tab in “up” position Check trim tab functions/pump
uid levels