Page H-5
Repair and Service Manual
B
B
ENGINE
Read all of Section B and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
A loose belt can cause audible vibration and squeal.
Tighten a
new
starter/generator belt to 115 - 125 lbs.
(52 - 57 kg) tension when a gauge is applied half way
between the two pulleys.
Fig. 9 Checking Belt Tension with Gauge
Although not as accurate, the belt may be depressed
with a finger. A maximum deflection of 3/8” (1 cm) is
acceptable for a
new
belt.
Fig. 10 Checking Belt Tension with Finger
Re-tighten an
existing
belt to 75 - 80 lbs. (34 - 36 kg)
tension using the same technique. A maximum deflec-
tion of 1/2" (13 mm) is acceptable.
Adjusting the Belt Tension
Loosen front and back pivot bolts of starter/generator.
Loosen adjusting bolt. Use pry bar to force starter/gen-
erator towards front of vehicle until proper belt tension
is achieved. Hold starter/generator in place and tighten
adjusting bolt.
Tighten pivot bolts to 25 ft. lbs. (35 Nm) torque.
SPARK PLUGS
Tool List
Qty.
Spark plug socket, 5/8” ................................................ 1
Ratchet ........................................................................ 1
Plug gauge, wire type .................................................. 1
Anti-seize compound ................................................ AR
Torque wrench, ft. lbs .................................................. 1
Fig. 11 Adjusting the Belt Tension
Remove and inspect the spark plugs per the Periodic
Service Schedule located in Section A. Fouled spark
plugs are indicated by a wet, black appearance. This
could be caused by a dirty air filter element or other
restrictions in the air intake system. Incorrectly adjusted
valves, spark plug wires which are in poor condition or
poor quality fuel could also contribute to the problem.
Clean and gap to .030" (.76 mm).
If
a plug has been
burned beyond .035" (.89 mm) or the porcelain is
cracked, it should be replaced.
Fig. 12 Gapping the Spark Plug
NOTICE
3/8" (1 cm) Maximum
Deflection (New Belt)
1/2" (1.3 cm) Maximum
Deflection (Existing Belt)
Pivot Bolt
Adjusting Bolt
.030"
(.76 mm)
Gap
Spark Plug
Summary of Contents for 625619 2012
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