Suzuki 2005 DL650K5, Service Manual

Page: 92 / 701

3-38 ENGINE
CAM WEAR
Worn-down cams are often the cause of mistimed valve opera-
tion resulting in reduced power output.
The limit of cam wear is specified for both intake and exhaust
cams in terms of cam height
H
, which is to be measured with a
micrometer. Replace camshaft if it wears worn down to the limit.
&
Cam height
H
Service Limit: (Intake): 35.18 mm (1.385 in)
(Exhaust): 33.18 mm (1.306 in)
"
09900-20202: Micrometer (25 – 50 mm)
CAMSHAFT JOURNAL WEAR
Determine whether or not each journal is worn down to the limit
by measuring the oil clearance with the camshaft installed in
place.
• Use the plastigauge to read the clearance at the widest por-
tion, which is specified as follows:
&
Camshaft journal oil clearance
Service Limit (IN & EX): 0.150 mm (0.0059 in)
"
09900-22301: Plastigauge
09900-22302: Plastigauge
NOTE:
* Install camshaft journal holder to their original positions.
(
!
3-99, 3-102)
* Do not rotate the camshaft with the plastigauge in place.
• Tighten the camshaft journal holder bolts evenly and diago-
nally to the specified torque.
$
Camshaft journal holder bolt: 10 N·m
(1.0 kgf-m, 7.0 lb-ft)
• Remove the camshaft holders, and read the width of the com-
pressed plastigauge with envelope scale. This measurement
should be taken at the widest part.
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