Dodge D250 1990 - Page 294

Base Engine Components
DODGE Turbo Diesei
Out-of-Chassis Repairs
Page 91-7
Measure the piston skirt diameter as illustrated.
Minimum Diameter: 101.823mm [4.0088 inch]
Note: Refer to the limits for the oversize pistons.
Use a new piston ring to measure the clearance in the ring
groove.
Maximum Clearance - The upper groove only needs to be
inspected for damage. Check the clearance as shown with a
new ring and feeler gauge. If the clearance of the intermediate
ring exceeds .150mm [0.006 Inch] replace the piston.
If the clearance in oil groove exceeds .130mm [.005 inch],
replace the piston.
Measure the pin bore.
Maximum Diameter - 40.025mm [1.5758 inch]
Inspect the piston pin for nicks, gouges and excessive wear.
Measure the pin diameter.
Minimum Diameter - 39.990mm [1.5744 inch]
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