Perkins 1300 EDi Series, Workshop Manual, Page: 72 / 264

4
60 Workshop Manual, TPD 1353E, Issue 3
Peregrine EDi and 1300 Series EDi
To inspect Operation 4-8
Special requirements
1 Check the piston for wear and other damage.
2 Check that the piston rings move freely in their grooves and that the piston rings are not broken.
3 Remove the piston rings, see Operation 4-11.
4 Clean the piston ring grooves and the piston rings.
5 Fit the piston groove gauge 21825955 to the top compression ring groove, measure and record the overall
diameter of the piston and the gauge (A).
6 Fit the piston groove gauge 21825955 to the second compression ring groove, measure and record the
overall diameter of the piston and the gauge (B)
7 Fit a new oil control ring in its groove and check for wear of the ring groove with feeler gauges (C).
8 Measure and record the diameter of the piston skirt (D). Measured at 90° from the gudgeon pin, at a point
27,43 mm (1.08 in) below the oil control ring. Refer to the relevant Data and dimensions for the "Piston rings"
on page 12.
Special tools
Description Part number
Piston groove gauges 21825955
W049
A
W049/1
B
W050
C
W087
D
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