Shibaura N843, Руководство по ремонту

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SECTION 7: SERVICING SPECIFICATIONS
* Unit for values without unit in the column of inspection item is in(mm).
Unit Part Inspection Items
Standard Dimension Standard Value
To be
Repaired
Allowable Limit
S773L N843(L) S773L N843(L) S773L N843(L) Remarks
Engine
Cylinde
r He
ad
Cylinder compression
PSI (MPa) {kgf/cm2}
More than
426.4 (2.94) {30}
More than
426.4 (2.94) {30}
Less than
361.1
(2.45){25}
Engine 250
rpm
Cylinder head bolt torque
lb
f
•ft (N•m) {kgf•m}
36.1-38.4 (49–52)
{5.0–5.3}
36.1-38.4 (49–52)
{5.0–5.3}
Coat threads
with engine oil.
Distortion of cylinder head
bottom surface
Less than
0.002(0.05)
Less than
0.002(0.05)
.005(0.12)
IN 0.0335-0.0453
(0.85–1.15)
Ex 0.0335-0.0453
(0.85–1.15)
IN 0.0335-0.0453
(0.85–1.15)
Ex 0.0335-0.0453
(0.85–1.15)
0.71(1.8) Valve sheet
angle 45°
Width of valve
seat
Intake 0.059-0.083
(1.50–2.10)
0.059-0.083
(1.50–2.10)
0.098(2.5)
Exhaust 0.063-0.071
(1.59–1.80)
0.063-0.071
(1.59–1.80)
0.098(2.5)
Rot
a
ti
n
g As
sembly
Cy
li
nd
er B
lo
c
k
Cylinder bore dia.
in(mm)
3.0315(77) 3.307(84) 3.307-3.308
(84-84.019)
3.307–3.308
(84–84.019)
3.0394
(77.2)
3.315
(84.2)
Distortion of cylinder block
upper face
Less than
0.0020(0.05)
Less than
0.0020(0.05)
0.0047(0.12)
Piston
Piston skirt bottom longer dia 3.0291(76.94) 3.3053(83.955) 3.0288–3.0294
(76.9325–76.9475)
3.3050–3.3056
(83.948–83.963)
3.020
(76.7)
3.295
(83.7)
Clearance between cylinder
and piston
0.0001–0.0030
(0.00265–0.075)
0.0015–0.0028
(0.038–0.072)
0.0010
(0.25)
0.0010
(0.25)
At 68°F(20°C)
Clearance between piston pin
hole and piston pin
-0.0000±0.0003
(-0.000±0.008)
-0.0000±0.0001
(-0.001±0.0027)
0.0008
(0.02)
0.0008
(0.02)