Torsional Damper - MerCruiser 305 CID (5.0L) Service Manual

5.0l / 305 cid / 5.7l / 350 cid ENGINES

Torsional Damper

Removal
1. Remove drive belts.
2. Remove drive pulley,
3. Remove torsional damper retaining bolt.
IMPORTANT: Do not use a universal claw type puller to remove torsional damper (in
next step) as outside ring of torsional damper is bonded in rubber to the hub and use
of claw type puller may break the bond.
4. Remove torsional damper with torsional damper remover and installer. (J-23523-E)
Installation
IMPORTANT: The inertia weight section of the torsional damper is assembled to the
hub with a rubber type material. The installation procedure (with proper tool) must
be followed or movement of the inertia weight on the hub will destroy the tuning of
the torsional damper.
1. Replace key in crankshaft if it is damaged.
2. Coat seal surface of torsional damper with engine oil.
3. Install torsional damper on crankshaft, using torsional damper remover and installer as
follows:
a. Install appropriate end of threaded rod into crankshaft.
Index
Page 3A-50
a - Torsional Damper Remover and Installer (J-23523-E)
a
90-861327--1 OCTOBER 1999
SERVICE MANUAL NUMBER 24
72345