Suzuki Samurai 1986, Service Manual

Page: 82 / 482

Camshaft
l
Journal wear:
l
Runout of camshaft:
Hold camshaft between two blocks, and
measure by using a dial gauge.
If exceeds its limit, replace camshaft.
Measure journal diameter in two directions at
two places (total of 4 readings) on each
journal as shown in Fig. 3-5-25, and also by
using bore gauge, measure journal bore in
cylinder head as shown in Fig. 3-5-26 (i.e. 4
readings on each journal).
Subtract journal diameter measurement from
journal bore measurement to determine
journal clearance.
If journal clearance exceeds its limit, replace
camshaft, and as necessary, cylinder head, too.
limit 0.10 mm (0.0039 in.)
Fig.
Cam wear:
Using a micrometer, measure height of
cam (lobe). If measured height is less than
respective limits, replace camshaft.
Cam height
Standard Limit
Intake cam
37.500 mm
37.400 mm
(I in.) (1.4724 in.)
,
Exhaust cam
37.500 mm 37.400 mm
(I in.)
(I in.)
I
Fuel pump
40.000 mm 39.600 mm
drive cam
in.)
(1.5590 in.)
Fig. 3-5-24
3-24
Standard
I
Journal
clearance
limit
0.050 0.091 mm
(0.0020 0.0036 in.)
Camshaft journal dia.
Journal bore dia.
44.125 44.150 mm 44.200 44.216 mm
(I.7372 1.7381 in.)
(1.7402 I in.)
44.325 44.350 mm 44.400 44.416 mm
(1.7451 1.7460 in.) (I I in.)
44.525 44.550 mm 44.616 mm
(1.7530 I in.)
I in.)
Fig.