Nanni N4.40, Workshop Manual

Page: 155 / 175

ENGINE
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG, WSM
1-S85
(Continued)
M00000003ENS0123US1
Oil Clearance of Camshaft Journal
1. Measure the camshaft journal O.D. with an external micrometer.
2. Measure the cylinder block bore I.D. for the camshaft with a
cylinder gauge.
3. Calculate the oil clearance.
4. If the oil clearance is more than the allowable limit, replace the
camshaft.
M00000003ENS0124US1
Cam height of
exhaust
Factory
spec.
D1503-M,
V2003-M,
V2003-M-T-BG
33.47 mm
1.318 in.
D1703-M,
D1803-M,
V2203-M,
V2403-M,
D1803-M-DI,
V2403-M-DI,
V2403-M-BG
33.90 mm
1.335 in.
V2403-M-T,
D1703-M-BG,
V2003-M-BG,
V2203-M-BG
33.27 mm
1.310 in.
V2403-M-DI-T
33.00 mm
1.299 in.
Allowable
limit
D1503-M,
V2003-M,
V2003-M-T-BG
33.42 mm
1.316 in.
D1703-M,
D1803-M,
V2203-M,
V2403-M,
D1803-M-DI,
V2403-M-DI,
V2403-M-BG
33.85 mm
1.333 in.
V2403-M-T,
D1703-M-BG,
V2003-M-BG,
V2203-M-BG
33.22 mm
1.308 in.
V2403-M-DI-T
32.95 mm
1.297 in.
Oil clearance of
camshaft journal
Factory spec.
0.050 to 0.091 mm
0.0020 to 0.0035 in.
Allowable limit
0.15 mm
0.0059 in.
Camshaft journal O.D. Factory spec.
39.934 to 39.950 mm
1.5722 to 1.5728 in.
Cylinder block bore I.D. Factory spec.
40.000 to 40.025 mm
1.5748 to 1.5757 in.
KiSC issued 06, 2009 A