Suzuki SFV650, Service Manual

Page: 233 / 573

Engine Mechanical: 1D-44
Camshaft Inspection
B944H11406009
Refer to “Engine Top Side Disassembly (Page 1D-25)”.
Refer to “Engine Top Side Assembly (Page 1D-31)”.
Camshaft Identification
The camshafts can be identified by the engraved letter
“A” and cords “B” stamped on the camshaft ends.
Cam Wear
Check the camshaft for wear or damage.
Measure the cam height “a” with a micrometer.
Replace a camshaft if the cams are worn to the service
limit.
Special tool
: 09900–20202 (Micrometer (1/100 mm, 25 – 50
mm))
Cam height “a”
Service limit: (IN.) 36.08 mm (1.4205 in)
Service limit: (EX.) 35.38 mm (1.3929 in)
Camshaft Journal Wear
Inspect the camshaft journal wear in the following
procedures:
1) Determine whether or not each journal is worn down
to the limit by measuring the oil clearance with the
camshaft installed in place.
2) Use the plastigauge to read the clearance at the
widest portion, which is specified as follows:
Special tool
(A): 09900–22301 (Plastigauge (0.025 –
0.076 mm))
(B): 09900–22302 (Plastigauge (0.051 –
0.152 mm))
3) Install camshaft journal holder and tighten the
camshaft journal holder bolts in ascending order of
numbers to the specified torque. Refer to “Engine
Top Side Assembly (Page 1D-31)”.
NOTE
Do not rotate the camshafts with the
plastigauge in place.
Tightening torque
Camshaft journal holder bolt: 10 N·m (1.0 kgf-
m, 7.0 lbf-ft)
4) Remove the camshaft journal holder and measure
the width of the compressed plastigauge using the
envelope scale.
Letter “A” Cord “B”
Front intake camshaft INF O
Front exhaust camshaft EXF P
Rear intake camshaft INR R
Rear exhaust camshaft EXR S
“A”
“A”
I944H1140213-01
“B” “B”
I944H1140214-01
“a”
I649G1140199-02
(A), (B)
I944H1140216-01
I944H1140217-01