Inspection And Repair - Isuzu 2000 Trooper Workshop Manual

D Remove any ridge or carbon build up from the top
end of the cylinder.
9. Remove the piston rings (8) with a piston ring
expander. Arrange the removed piston rings in the
cylinder number order.
10. Remove the piston pin (9) using J–24086–C piston
pin service set and piston support with a press.
NOTE: Keep the parts removed from each cylinder
separate. All parts must be reinstalled in their original
positions. Heating the connecting rod will permit easy
removal of the piston pin.
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Legend
(1) Press Ram
(2) Piston
(3) Connecting Rod
(4) Piston Pin
11. Piston (10)
12. Connecting rod (11)

Inspection and Repair

Pistons (10)
Carefully clean away all the carbon adhering to the piston
head and the piston ring grooves.
NOTE: Never use a wire brush to clean the pistons.
Damage will result. Visually check each piston for
cracking, scoring, and other signs of excessive wear. If
any of the above conditions are found, the piston must be
replaced.
Piston Diameter
1. Measure the piston outside diameter with micrometer
at the piston grading position and a right angle to the
015RS022
piston pin.
Piston grading position (from piston head)
Piston grading position : 43.0 mm (1.6929 in)
ENGINE MECHANICAL 6A–75
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