Installation manual

TRANSMISSION .TROU_~LESHOOTINGJZFt
Problem Probable Cause
Chattering transmission noise,
1.
The engine or propeller generates torsional
mainly at low engine speed. vibrations in the drive unit which produces
a "chattering" noise in the transmission.
2. Damper plate chatter.
Transmission shifts into gear, but
1.
Output coupling is not turning.
fails to propel the boat.
2.
Propeller shaft is not turning.
Output coupling is turning.
3.
Output coupling and
propeller shaft are turning.
NOTE: Tf you suspect a major problem in your transmission,
immediately contact your WESTERBEKE dealer or an
authorized marine transmission facility.
. -Verlilcallon!Remedy
.'
1. Mount a flexible coupling with another stiffness factor
between the engine and transmission; a coupting with
a higher stiffness factor might be sufficient.
2. Advance throttle slightly, if chatter stops the idle speed
should be adjusted.
2a. If chatter continues, inspect the damper plate.
1.
Transmission needs professional attention.
2. The coupling bolts are sheared or the coupling is slipping
on the propeller shaft. TIghten or replace set screws, keys,
pins and coupling bolts as necessary.
3.
Inspect the propeller; it may be missing or damaged.
A folding propeller may be jammed.
Variable pitch propeller may be in "no pitch" position.
~ WESTERBEKE
Engines & Generators
42