ENGINE
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG, WSM
1-S81
Oil Clearance between Rocker Arm and Rocker Arm Shaft
1. Measure the rocker arm shaft O.D. with an external micrometer.
2. Measure the rocker arm I.D. with an internal micrometer.
3. Calculate the oil clearance.
4. If the oil clearance is more than the allowable limit, replace the
rocker arm and measure the oil clearance again.
5. If the oil clearance stays more than the allowable limit, replace
the rocker arm shaft also.
M00000003ENS0116US1
Push Rod Bend
1. Put the push rod on V blocks.
2. Set a dial indicator with its point on the middle of the push rod.
3. Turn the push rod slowly and read the variation on the indicator.
4. If the measurement is more than the allowable limit, replace the
push rod.
M00000003ENS0117US1
Oil Clearance between Tappet and Tappet Guide Bore
1. Measure the tappet O.D. with an external micrometer.
2. Measure the tappet guide bore I.D. with a cylinder gauge.
3. Calculate the oil clearance.
4. If the oil clearance is more than the allowable limit or the tappet
has a damage, replace the tappet.
M00000003ENS0118US1
Oil clearance between
rocker arm and rocker
arm shaft
Factory spec.
0.016 to 0.045 mm
0.00063 to 0.0017 in.
Allowable limit
0.10 mm
0.0039 in.
Rocker arm shaft O.D. Factory spec.
13.973 to 13.984 mm
0.55012 to 0.55055 in.
Rocker arm I.D. Factory spec.
14.000 to 14.018 mm
0.55119 to 0.55188 in.
Push rod bend Allowable limit
0.25 mm
0.0098 in.
Oil Clearance between
tappet and tappet guide
bore
Factory spec.
0.020 to 0.062 mm
0.00079 to 0.0024 in.
Allowable limit
0.07 mm
0.003 in.
Tappet O.D. Factory spec.
23.959 to 23.980 mm
0.94327 to 0.94409 in.
Tappet guide bore I.D. Factory spec.
24.000 to 24.021 mm
0.94489 to 0.94570 in.
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