Camshaft; Cam Wear - Suzuki Katana 1100 Service Manual

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3-27 ENGINE
• Put on the valve spring retainer and, using the valve lifter, l
press down the springs, fit the cotter halves to the stem end,
and release the lifter to allow the cotter
CD
to wedge in
2
,
between retainer and stem. Be sure that the rounded lip
0
of the cotter fits snugly into the groove
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in the stem end.
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09916-14510: Valve lifter
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09916-14910: Valve lifter attachment
09916-84510: Tweezers
CAUTION:
Be sure to restore each spring and valve to their original
positions.
3
VALVE TIMING
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Ex. close
CAMSHAFT
Both camshafts should be checked for runout and also for wear
of cams and journals if the engine has been noted as giving
abnormal noise or vibration or lack power output. Any of these
conditions may be caused by camshafts worn down or
distorted to the service limit.
The exhaust camshaft can be distinguished from that of the
intake by the embossed letters "EX" (for exhaust) as against
letters "IN" (for intake).
Similarly, the right end can be distinguished by the notch from
the left end.
CAM WEAR
Worn-down cams are often the cause of mistimed valve
operation resulting in reduced power output.
The limit of cam wear is specified for both intake and exhaust
cams in terms of cam height (8), which is to be measured with
a micrometer. Replace camshafts if found worn down to the
limit. (Continued on next page.)
09900-20202: Micrometer (25 - 50 mm)
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