TM 5-2420-230-24-2
Section 5 - Fuel System - Group 05
Injection Pump Repairs - Lucas CAV DPA (5-09)
B Series Shop Manual
Page 5-35
Inspect the check ball and seat for erosion. Make sure the
ball can move freely on the seat.
Be sure the orifice in the side of the seat in the head
locating fitting is open.
Check that the cam ring is free to move in the fuel pump.
Timing Advance - Assembly (5-20)
Position a new gasket on the injection pump housing.
Insert the advance piston into the housing with the blank
end toward the oil feed hole in the bore.
L-333