A Series Diesel Engine Base Engine Components 202
Piston Ring Gap – Check
Position each ring in the cylinder and use a position to
square it with the bore.
A= 20 mm [0.0787 in]
Use a feeler gauge to measure the gap.
Limits
Ring Minimum Maximum
Top:
0.20 mm [0.0079 in.] 0.35 mm [0.0138 in.]
Intermediate:
0.25mm [0.0100 in.] 0.70 mm [0.0276 in.]
Oil Control:
0.20 mm [0.0079 in.] 0.40mm [0.0157 in.]
Piston Rings – Installation
Note : The top surface of all of the rings are identified:
Assemble with the word “Top” or the supplier
mark up.
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