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Item
Maximum rpm
(no-load)
Minimum rpm (no-load)
Compression pressure
Engine oil pressure
Valve
Open
timing In take valves
[3 mm
Close
(0.12in.)
added
Open
to valve Exhaust valves
side]
Close
Fuel injection timing
Warpage of gasketed surface
Inside diameter
Cylinder
sleeve
Out of roundness
Taper
MAINTENANCE STANDARDS
Nominal
Assembly standard Repair limit Service limit
Remedy
dimension
[Standard clearance] [Clearance]
[Clearance]
Varies according to customers' specifications.
Asjust governor.
650 -700
26 kg/cm
2
(370 psi), min
20 kg/cm
2
(at 150 -200 rpm)
(284 psi)
3-4 kg/cm2 (43-57 psi)
2 kg/cm
2
(at 1500 rpm)
(28.4 psi)
1-2 kg/cm
2
(14.2 -28.4 psi), min
0.5 kg/cm
2
(at idle speed)
(7.1 psi)
24
°
ATDC
4
°
BBDC
±30
16
°
'BBDC
28
°
BTDC
1.Ene:ine specifications (rpm) 11500 I 1800I200012200 l 2500 J 3000 l 36001
l'1JTIX
·
n
I
23 I 24 I 2s I 26 l 28
I
30
I
33
I
0.05 (0.0020), max
0.20
Regrind if warpage is
(0.008)
minor.
77(3.307)
+g.035 tg.00138)
+0.20
0.70
(+0.008)
(0.0276)
Hone sleeve to 0.25
(0.0098), 0.50 (0.00197)
or 0. 75 (0.0295) oversize
0.01 (0.0004), max
with prescribed tolerance.
O.Q15 (0.0006), max
Oversize pistons and
piston rings should be
used.
Unit· mm (in )
Remarks
Oil and water temperatures:
20 -30
°
C (68 - 86
°
F)
Oil temperature:
70
°
C (158
°
F)
These values are to be referred
to in measuring timing and
differ from actual timing.
Standard values are shown.
Check timing on caution plate.
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