Perkins 900 Series Workshop Manual page 82

4
900 Series
To assemble Operation 4-9
1 Clean the bore of the small end bush and lubricate it with clean engine lubricating oil.
2 Fit a new circlip in the circlip groove of one of the gudgeon pin bosses. Ensure that it fits correctly in the
groove.
3 Fit the connecting rod to the piston. The piston and connecting rod are correctly assembled when the
combustion bowl (A1) in the top of the piston is toward the assembly number (A2) on the connecting rod. In
this position, the arrow (A3) on the top of the piston will be towards the front of the engine. If the original piston
is used, ensure that it is assembled to the correct connecting rod and is used in the original cylinder. If a new
piston is fitted, ensure that it is of the correct height grade, see Operation 4-7.
4 Lubricate the gudgeon pin bosses with clean engine lubricating oil and push in the gudgeon pin towards the
circlip. If the gudgeon pin is a tight fit in the piston, heat the piston to 40/50 °C (100/120 °F) before the gudgeon
pin is fitted.
5 Fit a new circlip in the groove in the other gudgeon pin boss. Ensure that it fits correctly in the groove.
6 Fit the piston rings, see Operation 4-10.
3
1
2
A
C0046
72 Workshop Manual, TPD 1345E, issue 3
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