Parsun F40 EFI, Maintenance Manual

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8
Maintenance information
Engine
Item Data Item Data
Pow
er
unit
Minimum
compression
pressure
840 kPa
Cyli
nder
bloc
k
Taper limit 0.08mm
Lubricating oil
pressure (idle
speed)
230 kPa Roundness limit 0.05mm
Cyli
nder
cove
r
Buckling limit 0.1mm
Pisto
n
Diameter of piston
64.930~64.945mm
Inner diameter
of camshaft hole
37.00~37.025mm
Height of measuring
point
3mm (from bottom of
piston)
Piston to cylinder
clearance
0.055~0.085mm
Cyli
nder
bloc
k
Cylinder bore
65.00~65.013mm Piston pin bore aperture 16.002~15.985mm
Wear limit 65.1mm
Outside diameter of piston
pin
15.965~16.008mm
Continued
：
Item Data Item Data
Pi
sto
n
rin
g
Top
ring
Thickness
1.17~1.19mm
Valv
e
Stem
diameter
Intake
valve
5.475~5.490mm
End face
width
2.25~2.4mm
Exhaust
valve
5.460~5.475mm
End gap 0.15~0.30mm
Inner diameter of valve
guide
5.500~5.518mm
Lateral
clearance
0.02~0.06mm
Clearance between
guide and valve stem
0.025~0.058mm
Second
ring
Thickness 1.47~1.49mm
Valve stem roundness
limit
0.03mm
End face
width
2.60~2.80mm
Valve
sprin
g
Free length 40.0mm
End gap 0.30~0.50mm Minimum free length 38.4mm
Lateral
clearance
0.02~0.06mm Tilt limit 1.7mm
Oil ring
Thickness 2.36~2.48mm
Co
nne
ctin
g
rod
Inner diameter of small
end
15.985~15.998m
m
End face
width
2.75mm
Inner diameter of large
end
36.000~36.016m
m
End gap 0.20~0.70mm
Oil clearance of large
end
0.020~0.052mm
Lateral
clearance
0.04~0.18mm Thickness
of big-end
bearing
A Black
1.496~1.490 mm
Ca
ms
haf
t
Height
Intake
cam
30.83~31.09mm
B Brown
1.490~1.484mm
Exhaust
cam
30.83~31.09mm
Cra
nks
haft
Diameter of crankshaft
main journal
42.984~43.000 mm
Diameter of base
circle
25.90~26.10mm Crank pin diameter 32.984~33.000 mm
Journal diameter
36.935~36.955mm
Crank pin width
21.00~21.07mm
Roundness limit
0.03mm
Large end backlash of
crankshaft
0.05~0.22mm