Piston And Connecting Rod Assembly; To Dismantle And To Assemble - Perkins 1000 Series Workshop Manual

Piston and connecting rod assembly

To dismantle and to assemble

To dismantle
1 Remove the piston rings,
2 Remove the circlips which retain the gudgeon
pin.
3 Put a mark on the piston to indicate the cylinder
number as shown on the connecting rod. Put the
mark on the piston on the same side as the mark
on the big end to ensure that they are assembled
correctly (A).
4 Push the gudgeon pin out by hand. If the
gudgeon pin is tight, heat the piston to 40/50°C
(100/120°F) for easy removal of the gudgeon pin.
To assemble
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 With the piston upside down, put the connecting
rod in position with the recess for the location of
the big end bearing (B1) on the same side as the
lug on the gudgeon pin boss (B2). If the original
piston is used, ensure that it is assembled to the
correct connecting rod and is used in the original
cylinder. Engines with "Fastram" pistons have six
piston height grades, if a new piston is fitted,
ensure that it is of the correct height grade, see
operation 13A-03.
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, operation
Perkins Phaser/1000 Series, April 1995
PISTON AND CONNECTING ROD ASSEMBLIES
13A-05
operation 13A-04.
13A-04.
4
4
2
13
4
PA085
1
PA086
13A.11