Trooper LS V6-3.5L (1998)
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 piston pin.
Piston grading position (from piston head)
Piston grading position: 43.0 mm (1.6929 inch)
The size mark (1) for piston outside diameter is represented as shown in illustration.
Outside Diameter:
Size Mark A: 93.360 mm 93.370 mm (3.6756 inch 3.6760 inch)
Size Mark B: 93.371 mm 93.380 mm (3.6760 inch 3.6764 inch)
Size Mark C: 93.381 mm 93.390 mm (3.6764 inch 3.6768 inch)
