Power-Assisted Steering Pump Belt Inspection; Serpentine Belt Inspection - Mercury Sterndrive QSD 2.0 Manual

Diesel engine
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Section 5 - Maintenance
Power‑Assisted Steering Pump Belt Inspection
The 2.0 diesel engine uses a stretch‑belt to drive the power‑assisted steering pump. The stretch‑belt is engineered to have a
certain amount of elasticity and designed to have self tensioning and vibration damping characteristics not found in standard
serpentine accessory drive belts. Stretch‑belt service and maintenance procedures differ from standard accessory drive belts.
Should the power‑assisted steering pump stretch‑belt need replacement, consult your Mercury Diesel authorized repair facility.
1.
Inspect the power–assisted steering stretch‑belt for the following:
Excessive wear
Cracks
Fiber fraying
Glazed surfaces
2.
Replace the belt if worn or damaged it must be replaced. See your Mercury Diesel authorized repair facility.
a
b
3.
There is no adjustment available for the power‑assisted steering pump stretch‑belt. If the belt becomes loose or noisy, it
has worn out and must be replaced. See your Mercury Diesel authorized repair facility.

Serpentine Belt Inspection

The 2.0 diesel engine is equipped with a stretch‑belt that is used to drive the power‑assisted steering pump. This belt must be
removed to service the serpentine belt. Stretch‑belt service and maintenance procedures differ significantly from those that
apply to standard accessory drive belts. Should the serpentine belt need replacement, consult your Mercury Diesel authorized
repair facility.
1.
Inspect the serpentine 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
2.
Check the operation of the automatic tensioner and associated components.
a.
Position a suitable tool on the automatic tensioner pulley bolt.
Page 106
a -
Power–assisted steering stretch belt
b -
Power–assisted steering pump pulley
c -
Crankshaft pulley
c
25604
21062
90-8M0069751
APRIL 2012
eng

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