Section04ENGINE
Subsection 09 (ENGINE BLOCK)
R1503motr40A
1
1. Bearing of starter drive assembly
Starter drive bearing can be easily removed from
lower crankcase half using the following sug-
gested tool or equivalent:
– Snap-on hammer puller including:
– handle CJ93-1
– hammer CJ125-6
– claws CJ93-4.
F01J0ZA
Close puller claws so that they can be inserted
in end bearing. Holding claws, turn puller shaft
clockwise so that claws open and become firmly
tight against bearing.
Slide puller hammer outwards and tap puller end.
Retighten claws as necessary to always maintain
them tight against bearing. Continue this way un-
til bearing completely comes out.
Inspection
Cylinder
Check cylinder for cracks, scoring and wear ridges
on the top and bottom of the cylinder. If so, re-
place cylinder.
Cylinder Taper
Measure cylinder bore and if it is out of specifi-
cations, rehone cylinder sleeve and replace piston
ass'y with first oversize.
NOTE: It is not necessary to have all cylinders
rehoned if they are not all out of specification.
Mixed standard size and oversize cylinders are al-
lowed.
Measure cylinder bore at 3 recommended posi-
tions. See the following illustration.
R1503motr24A
3
1
2
B
A
1. First measuring diameter
2. Second measuring diameter
3. Third measuring diameter
A. 60 mm (2.362 in)
B. 110 mm (4.331 in)
CYLINDER TAPER IN DIAMETER mm (in)
NEW MAXIMUM 0.038 mm (.001 in)
SERVICE LIMIT
0.090 mm (.004 in)
Distance between measurements should not ex-
ceed the service limit mentioned above.
Cylinder Out of Round
Measure cylinder diameter in piston axis direction
from top of cylinder. Take an other measurement
90° from first one and compare.
NOTE: Take the same measuring points as de-
scribed in CYLINDER TAPER above.
154 Te m plat e
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