Timing belt precautions, Timing beit removai – Generac 86640 User Manual
Page 30
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
Section 2.2- TIMING BELT
Timing Belt Precautions
Comply with the following precautions when removing,
Installing or inspecting the timing belt:
D
Make sure the timing belt, pullies and belt tensioner are
free of oil and water.
□
Prior to installing the timing belt, make sure that No. 1
cylinder is at top dead center (TDC) of its compression
stroke.
D Align the arrow on the timing belt in the direction of
engine rotation.
G
Remove all spark plugs before adjusting timing belt
tension.
□
Once the timing belt has been removed, DO NOT rotate
the crankshaft and camshaft separately, or the valves
will strike the piston heads.
Q Do NOT bend or twist the timing belt too tightly.
Timing Beit Removai
1. Drain the radiator.
2. Remove the radiator, fan guard and fan. See Part 4,
“ENGINE COOLING SYSTEM".
3. Remove tension from the drive belt, then remove the drive
belt.
4. Remove the crankshaft pulley.
5. Set No. 1 cylinder at top dead center (TDC) of its compres
sion stroke. Then, remove upper and lower dust covers and
gaskets.
6. Loosen timing belt tensioner and return spring, then re
move timing belt.
Timing Beit Inspection
BELT IS BROKEN;
Caused by improper han
dling, poor belt cover sealing,
coolant leakage at water
pump.