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Parsun F40 EFI User Manual

Parsun F40 EFI
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68
3. Measure the clearance of piston ring end face with a clearance gauge; If it does not
meet the specified value, replace it.
End face clearance (during installation): Top ring 0.150.30 mm
Second ring 0.300.50 mm
Oil ring 0.200.70 mm
4. Install the piston ring on the piston, and measure the clearance between the piston ring
and the piston ring groove with a clearance gauge; If it does not meet the specified
value, replace it.
Specified clearance: Top ring 0.020.06 mm
Second ring is 0.020.06 mm
Oil ring 0.040.18 mm
Inner diameter of connecting rod small end
Measure the inside diameter of the small end. If it does not meet the specified value,
replace it.
Inner diameter of small end: 15.98515.998 mm
Connecting rod large end backlash
Measure the big-end backlash.
If it does not meet the specified value,
replace the connecting rod or crankshaft or both.
Large end backlash: 0.050.22 mm
Check connecting rod bolts
1. Check the thread diameter of the connecting rod bolt at the position shown in the
figure.
2. Calculate the diameter difference of two threads; If it does not meet the specified value,
replace it.
Thread diameter difference of connecting rod bolt: 00.1 mm
Crankshaft
1. Measure crankshaft main journal diameter, crank pin diameter and crank pin width. If
they do not meet the specified value, replace the crankshaft.
Diameter of
crankshaft
journal
42.984~43.000 mm
Crank pin
diameter
32.984~33.000 mm
Crank pin width
21.000~21.070mm
2. Check the crankshaft runout; If it exceeds the specified value, replace it.
a

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Parsun F40 EFI Specifications

General IconGeneral
BrandParsun
ModelF40 EFI
CategoryOutboard Motor
LanguageEnglish

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