G424 Service Manual Base Engine Service Procedure123
6EN0668
8EN0066
8EN0044
8EN0067
H Crankshaft sprocket removal
(1) Using the special tool show in the illustration, lock the
camshaft sprocket in position.
(2) Loosen the camshaft sprocket bolt.
Inspection
1. Timing Belt
Replace belt if any of the following conditions exist.
(1) Hardening of back rubber.
Back side is glossy without resilience and leaves no
indent when pressed with fingernail.
(2) Cracks on rubber back.
(3) Cracks or peeling of canvas.
(4) Cracks on tooth bottom.
(5) Cracks on belt sides.
(6) Abnormal wear of belt sides.
NOTE: The sides are normal if they are sharp as if cut by a
knife.
MB990767
MD998719
Cracks Cracks
Cracks
Cracks
Rounded edge
Abuormal wear
(Flutty strand)
Peeling
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