The engine is the same as that fited to Series BN6 cars except for dimensional differences.
The oil pump fitted to early engines is of the Hobourn Eaton rotary vane type, the service procedure for which is detailed in Section A.8. Later engines, however, are equipped with a gear type pump and instructions for servicing this type of pump are given below.
Renew worn parts as necessary. The pump driving gear is a press fit on its shaft and is keyed in position. The spindle should protrude .312 in. (7.94 mm.) from the gear face.
Care should be taken to see that the abutting faces of the cylinder block and the pump are clean before replacing and that the joint washers are in good condition. Insert the pump from below ascertaining that the driving gear is in mesh with the gear on the camshaft. Secure the pump with the three nuts and spring washers. Replace the pick-up strainer and sump.
The dimensions required for the fitting of cylinder liners to the 2.9 litre
C type engine are given below.
These dimensions should be used in conjunction with the removal and fitting instructions given in Section A.33..
To prevent the throttle linkage becoming strained and the throttle levers from becoming loose, the linkage may be adjusted to allow the toe board to act as a positive stop to the accelerator pedal when the throttles are fully open.
Slacken the pinch bolts on levers A B and C (Fig. AAA.3). Place a wooden block 2 1/2 in. (63.5 mm.) thick between the pedal and toe board; push the pedal down to retain the block against the toe board. Adjust lever
C to obtain a clearance of 1/16 in. (1.59 fmm.) between the lever and the body flange as shown at
X (Fig. AAA.2). Tighten all pinch bolts.
Release the pedal and then re-check the setting.