Cam Wear - Segway SNARLER ATV 2021 Series Service Manual

ENGINE TOP END ENGINE TOP END
Camshaft / Camshaft Bore Inspection

Cam Wear

Cam Wear
◆ Visually inspect each cam lobe for wear or damage.
◆ Measure the height【D】of the cam with a micrometer.
If the cams are worn past the service limit, replace the
camshaft.
Camshaft Lobe Height:
D D
Exhaust
Inlet
◆ Visually inspect each camshaft journal for scoring,
wear or damage.
◆ Measure the diameter of the camshaft journals using
a micrometer. Compare to specifi cation.
◆ Replace camshafts if damaged or if any part is worn
past the service limit.
22.954 ~ 22.975 mm(0.9036" ~ 0.9045") 22.944 mm (0.9033")
◆ Temporarily install the camshaft carriers to measure
the camshaft bore. Torque bolts in sequence to
specifi cation. Replace cylinder head if worn.
Torque
◆ Replace cylinder head if camshaft journal bores are
damaged or if worn past the service limit.
23.000 ~ 23.021 mm(0.9055" ~ 0.9063") 23.044 mm (0.9072")
◆ Calculate oil clearance by subtracting camshaft
journal O.D.s from camshaft carrier bore I.D.s.
Compare to specifi cation.
0.025~ 0.067 mm (0.0009" ~ 0.0026")
CAUTION CAUTION
The cylinder head and Camshaft Carrier are
machined as a set, and must be replaced as a set.
3-5-20
Standard
40.08 ± 0.04 mm
(1.5780" ± 0.0015")
40.36 ± 0.04 mm
(1.5890" ± 0.0015")
Standard
Camshaft Carrier Bolts
10 N • m (1.0 kgf • m, 89 in • lb)
Standard
Standard
Service Limit
39.99 mm (1.5744")
40.27 mm (1.5854")
Service Limit
Service Limit
Service Limit
0.10 mm (0.0039")