Crankcase Cover/Cylinder Barrel; Camshaft Inspection - Honda GX270H Manual

62Z7B000.book 14 ページ ２０１２年９月２７日 木曜日 午前１０時２１分
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CRANKCASE
CRANKCASE COVER/CYLINDER
BARREL/PISTON/CONNECTING ROD/
CRANKSHAFT/CAMSHAFT
INSPECTION
CAMSHAFT JOURNAL I.D.:
CRANKCASE COVER SIDE
Measure the camshaft journal I.D. of the crankcase
cover.
STANDARD:
SERVICE LIMIT: 16.05 mm (0.632 in)
If the measurement is more than the service limit,
replace the crankcase cover (page 14-4).
Inspect the camshaft O.D. with this inspection (page
14-20).
CAMSHAFT JOURNAL I.D.:
CYLINDER BARREL SIDE
Measure the camshaft journal I.D. of the cylinder barrel
assembly.
STANDARD:
SERVICE LIMIT:
If the measurement is more than the service limit,
replace the cylinder barrel.
Inspect the camshaft O.D. with this inspection (page
14-20).
CYLINDER SLEEVE I.D.
Measure and record the cylinder I.D. at three levels in
both the "X" axis (perpendicular to crankshaft) and the
"Y" axis (parallel to crankshaft). Take the maximum
reading to determine cylinder wear and taper.
GX270H:
STANDARD:
SERVICE LIMIT:
GX390H1:
STANDARD:
SERVICE LIMIT:
If the measurement is more than the service limit,
replace the cylinder barrel (page 14-6).
Inspect the piston skirt O.D. with this inspection (page
14-15).
14-14
16.000 – 16.018 mm
(0.6299 – 0.6306 in)
16.000 – 16.018 mm
(0.6299 – 0.6306 in)
16.05 mm (0.632 in)
77.000 – 77.017 mm
(3.0315 – 3.0322 in)
77.17 mm (3.0381 in)
88.000 – 88.017 mm
(3.4646 – 3.4652 in)
88.170 mm (3.4710 in)
X
Y
TOP
MIDDLE
BOTTOM