SKF Timing Belt Kits - SKF.com

Typical timing belt installation
• Fit new idler pulley (3), and/or new
tensioning pulley (2), in disengaged position,
as necessary. (Refer to Fig. 3)
• Fit new timing belt (1). Make sure arrows
on belt point in correct direction and that
any timing marks align with those on
sprockets. (Refer to Fig. 3)
• Some applications require that the water
pump (e) is used to adjust belt tension.
(Refer to Fig. 4)
• Tighten belt by rotating tensioning
pulley (2) or water pump (e). Refer to
Fig. 3 & 4. Tighten bolts on tensioning
pulley (2) temporarily or water pump (e).
• Turn engine clockwise through two full
turns (2 x 360º), bringing it back to timing
position.
Figure 3
The first sign of wear is “noise.”
A tensioner that sounds bad usually is bad. While the engine is running, listen by the front of the engine
for any noise coming from the tensioner. If there is:
• Check for pulley bearing failure, which
accounts for about half of all tensioner
failures.
• Misalignment can also cause the belt to
wear unevenly and fail early.
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• Check alignment of all timing marks,
timing holes (fit timing pins) and the like.
• Fit belt tension tester and check that tension
matches recommended value, then tighten
nut of tensioning pulley (2) or bolts of water
pump (e) to recommended torque. (Refer to
Fig. 3 & 4.)
• Refit timing cover.
• Clamp flywheel, then refit crankshaft pulley
and tighten bolt to recommended torque.
• Refit and tighten all belts previously
removed.
• Refit battery cables.
Figure 4
• Check for roughness feel when rotating
bearing
• Side play (rocking)