Parsun F40 EFI, Maintenance Manual

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1. Check whether the engine body and base are cracked, damaged and corroded; If yes,
replace it.
2.
Check the cooling water channel for grease content or blockage; If yes, clean it.
Reinstallation
Assemble piston connecting rod
Install piston, connecting rod, piston pin and piston pin clip clutch.
Note:
When installing, make sure that the mark on the connecting rod and the mark on the top of
the piston are on the same side.
Installing the piston rings
1. Install piston rings in the order of oil ring, second ring and top ring.
Note:
When installing the second ring, ensure that the mark faces the top of the piston.
2.
Position of piston ring notch
Oil ring lower retaining ring 1
Oil ring elastic ring 2
Oil ring upper retaining ring 3
Second ring 4
Top ring 5
Installing piston
Install piston with piston slideway,
Make sure that the "UP" mark on the top of the piston faces the flywheel.
Note:
When installing, apply oil to the sides of the piston and piston ring.
Installing crankshaft
1.Install the bearing bush on the engine body.
Note:
Insert the raised part on the bearing bush into the groove of the corresponding part of the
engine body.
2. Install the crankshaft to the engine body and install the oil seal.
Note:
Apply oil on the inside of the oil seal before installation.
3.
Install the connecting rod cover to the connecting rod and tighten the bolts to the
specified torque in two steps.
Seating torque: First time 6 Nm
Second time 17 Nm
Note:
Align the connecting rod cover with the mark on the connecting rod.
Apply oil to connecting rod bolts before installation.
UP
3
2,5
1
4