Injection Pump Timing Belt (Cont'd)

EM-211prose procedure

CD17 and CD20 diesel engines; CD17 No mark, CD20 Use mark "A" for injection pump pulley alignment; belt tension differs between CD17 and CD20.

TIMING BELT

3
Remove timing belt.
SMA402A
3-1
Loosen tensioner lock nut and turn tensioner clockwise to free belt from tension. Then temporarily tighten tensioner nut.
3-2
Remove timing belt.

1
Confirm that No. 1 piston is set at T.D.C. on its compression stroke.
If injection pump pulley was removed, confirm that it is re-installed as illustrated. Identification of alignment: CD17 No mark; CD20 Use mark "A".
SEM679D
2
Set timing belt.
SMA404A
2-a
Align white lines on timing belt with punchmarks on camshaft sprocket and injection pump sprocket.
2-b
Point arrow on timing belt toward belt cover.
3
Adjust belt tension.
SMA405A
3-1
Loosen tensioner lock nut to apply tension to timing belt.
3-2
Rotate crankshaft clockwise two turns. Do not turn crankshaft by camshaft sprockets.
Do not turn crankshaft by camshaft sprockets.
3-3
Tighten tensioner lock nut while holding tensioner with a screwdriver.