10
,
General
11-Compression pressure
(with open
throttle
and
engine
at
operating
temperature,
all
spark plugs removed,
practically
no
blowby with
gauge
in spark plug seat,
engine
cranked by
starter
motor)
••••
'
••
Pressure
Pressure
difference
between
cylinders
Cylinders
and
Pistons
2 oversizes,
each
with
0.5
mm
greater
diameter
!-Cylinder
• • • • • • • •
•••••••
Out-of-round
2-Cylinder/piston
• • • • • • • • • • •
Clearance
3-a)
Upper piston ring
•••••••••
Side
clearance
b)
Lower piston ring
•••••••••
Side
clearance
4-0il
scraper ring • • • • • • • • • • •
Side
clearance
5-a)
Upper ring • • • • • • • • • • • •
End
gap
b) Lower ring
••••••••••••
End
gap
6-0il
scraper ring • • •
••••••••
End
gap
7 -Piston weight • • • • •
•••••••
8-Weight
difference
between pistons
of
rr,e
engine • • • . • • • • • • • . • • •
In
the
event
of
repairs
Crankcase
1-Main
bearing bore
a) Bearings
1-3,.
• • • • • • • • • •
Diameter
b)
Bearing 4 • •
·•
~
• • • • • • • • •
Diameter
2-Flywheel
end
seal
bore
.-
•••••••
Diameter
3-Fan
end seal bore
••••
~
• • • • •
Diameter
4-Camshaft
brg. bore • • • • • • • • •
Diameter
5-0il.pump
housing bore • • • • • • •
Diameter
6-Cam
follower bore
••••••••
, •
Diameter
Camshaft
l~earin~l~
••••
•••••••·
D~mcter
2-Center
bearing runout
(Bearings 1
and, 3 on V-blocks) • • • Runout
a-camshaft/
camshaft
bearing
(including preload exerted by housing)
• • • • • • • • • • • • • • • • • • • • Radial pia y
Thrust bearing • • • • • •
•.
• • • •
End
play
4-Camshaft
gear
• • •
••••
·
•••••
Backlash
5-Cam
follower
•••••••••
• • •
Diameter
6-Housing
bore/cam
follower
•••••
Radial play
7-Push
rod.
• • • • • • • • • • • • • • Runout
10 • 02
Tolerances and Wear Limits
Upon
Install.
(New)
121 - 156 psi
(8.
5-11.0
atm)
rna.
0.01
0.02
-
0.05
0.
04
-
0.
07
0.04-
0.07
0.02
-
0.05
0.35-
0.55
o.
35
-
0.55
0.25
-
0.40
Max.
4 g
70.00-70.02
50.00-50.04
95.00-95.05
62.00-62.05
27.50-27.52
70.00-70.03
24.00-24.02
24.99-25.00
Max.
0.02
0.
02-0.05
0.04-0.13
o.oo-o.o5
0.04-0.13
0.02-0.06
Max.
0.3
Wear Limit
92
psi
(6.5
atm)
ma.21psi
(1.5
atm)
0.20
0.12
0.10
0.10
0.90
o.9o
0.95
Max. 10 g
1
)
70.03
50.04
24.05
0.04
0.12
0.16
0.16
0.12
Printed
In
r;;.rml>nv
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