Propeller Shaft (Mie Inboard Models); Checks Made With Boat In Water - Mercury MerCruiser MCM 454 Mag MPI Service Manual

DRIVE SHAFT / PROPELLER SHAFT MODELS
5. Torque bolts to 35-54 lb. ft. (47-73 N·m) as shown.
6. Refer to appropriate Sterndrive Service Manual and install drive unit.
7. Refer to SECTION 2 "Removal and Installation - Engine Installation/Alignment," if
engine was removed.

Propeller Shaft (MIE Inboard Models)

The following information can be used as a guide for determining vibration prob-
lems on boats powered by inboard engines (MIE models). For installation, align-
ment and repairs to shafts, struts, shaft logs and rudders, refer to boat manufactur-
er's service manual. If boat is equipped with V-drive, or a remote mounted V-drive,
refer to SECTION 8B or boat manufacturer's service manual for all servicing and
troubleshooting. For MIE engine installation and alignment, refer to SECTIONS 2E
and 2F.

Checks Made with Boat In Water

1. Disconnect propeller shaft coupling from transmission coupling.
2. Check fit of coupling "a" or "b" to propeller shaft.
a. Straight Bore Type:
Index
Page 8F-14
Downloaded from https://needmanual.com/
(1.) Loosen setscrews.
(2.) Try to move coupling by hand. The bore of the coupling should be a semi-press
fit to shaft.
(3.) Check shaft for wear. If worn, replacement of shaft may be necessary.
(4.) If shaft is not worn, try another coupling.
NOTICE to INSTALLER
SERVICE MANUAL NUMBER 23
71099
90-861326--1 MARCH 1999