Section 5 - Maintenance
Page 94
90-899883154 JANUARY 2008
Serpentine Drive Belt
!
WARNING
Inspecting the belts with the engine running may cause serious injury or death. Turn off
the engine and remove the ignition key before adjusting tension or inspecting belts.
b
c
d
e
f
g
h
i
a
33539
Belt Routing Diagram
a -
Idler pulley
b -
Water circulating pump pulley
c -
Alternator pulley
d -
Idler pulley
e -
Power steering pump pulley
f -
Idler pulley
g -
Crankshaft pulley
h -
Seawater pump pulley
i -
Tensioner pulley
Checking
1. Inspect the drive belt for proper tension and for the following:
•
Excessive wear
•
Cracks
NOTE: Minor, transverse cracks (across the belt width) may be acceptable. Longitudinal
cracks (in the direction of belt length) that join transverse cracks are NOT acceptable.
•
Fraying
•
Glazed surfaces
•
Proper tension ‑ 13 mm (1/2 in.) deflection, with moderate thumb pressure, on the
belt at the location that has the longest distance between two pulleys.
mc75130-1
Replacing
IMPORTANT: If a belt is to be reused, it should be installed in the same direction of rotation
as before.