Dodge D250 1990 - Page 248

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. M2l
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]