Mitsubishi S4S Service Manual page 84

ENGINE MAIN PARTS
(3) Measuring camshaft deflection
Support the camshaft on its front and rear journals
in V-blocks. With the dia! indicator set at 0.00
mm [0.0000 in.] at the center joumal, turn the
camshaft full one revolution and read the
indicator, as shown in the illustration. 1/2 of the
reading on the indicator is the deflection of the
camshaft. If deflection exceeds the repair limit,
straighten the camshaft by cold working, or
replace it.
Unit: mm [in.]
Item
Assembly Repair
Standard Limit
Camshaft 0.02 [0.0008] 0.20
detlection or less [0.0020]
(4) Clearance between camshaft journals and
bushings
Measure the diameter of the camshaft journals
and the inside diameter of the bushings in the
crankcase to check the clearance between the
joumal and bushing. Ifthe clearance exceeds the
service limit, replace the bushings.
Unit: mm [in.]
Item
Nominal Assembly Service
Value Standard Limit
No.l,2 53.94
(S4S)
54 to 53.96 53.90
Diameters No.l, 2,3 [2.13]
[2.1236
[2.1220]
of cam-
(S6S) to 2.1244]
shaft
52.94
journals
No.3 (S4S)
53
to 52.96 52.90
NoA (S6S) [2.09] [2.0842 [2.0827]
to 2.0850]
0.070
to 0.118
Front and [0.0028
middle to 0.0047]
(without
bushings)
Clearance
0.070
between to 0.110
0.15
camshaft Rear [0.0028
[0.0059]
journals to 0.0043] (Repair
and bore
(without
limit)
bushings)
0.040
to 0.119
[0.0016
to 0.0047]
(with bush-
ings)
7-22
Measuring camshaft detlection
Measuring diagram
-Q-W
Measuring camshaft journals
Measuring camshaft bushings