Pistons Data; Pin Bore Diameter; Ring Groove Data; Piston Pin Diameter - Dodge D250 1990 Service Manual

Specifications
P a g e 9 L - l 4
Base Engine Components
DODGE Turbo Diesel
Pistons
- Skirt Diameter (Minimum)
• Nominal - 101.880mm [4.011 inch]
- Worn Limit - 101.823mm [4.0088 inch]
Pin Bore Diameter (Maximum)
v 40.025mm [1.5758 Inch]
Note: Measure the diameter on a vertical axis only.
Ring Groove
Check wear by Inserting a new ring into the groove and
inserting a feeler gauge between the ring and the top side
of the ring groove. If maximum feeler gauge limits are
exceeded, replace the piston.
Top-Ni Resist - No check-Will not normally wear
- Intermediate (Maximum) - .150mm [0.006 inch]
• Oil Control Groove (Maximum) - .130mm [0.005 inch]
Piston Pin Diameter (Minimum)
- 39.990mm [1.5744 inch]