In our boat
bracket (5mm U-shaped profile) has been broken last year, and (after welding) it has been broken off this year again.
I have now dismounted the alternator
, and discovered that the carbon brushes
needs replacement (one of the carbon brushes
is too short to touch the rotor).
Is it possible that a carbon brush problem can cause the alternator and alternator belt to start resonating, resulting in a broken mounting bracket?
(we have observed some resonance at some RPM's)
Any other suggestion why a steel
bracket of 5mm thick breaks twice after 15 years of service
(and 1.400 working hours?)