Dodge D250 1990 Service Manual page 248

Rear wheel drive ram truck, diesel supplement
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Base Engine Components
DODGE Turbo Diesel
In-Chassis Repairs
Page 9F-19
Check valve depth (C) (Integral and insert valve seats).
Valve Depth
mm
in
0.99
1.52
MIN
MAX
0.039
0.060
Caution: Replace the valve if the depth is over the limit.
Apply a light coat of valve lapping compound to each valve and
lap each valve to its companion seat.
Remove the valves and clean the lapping compound from the
valves and seats.
M 2 l
Measure the valve seat width indicated by the lapped surface.
Valve Seat Width Limit:
Minimum (1): 1.5mm [0.060 inch]
Maximum (2): 2.0mm [0.080 inch]

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D350 1990W250 1990W350 1990

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