4.1 Oil Pump
DETRIOT DIESEL 53
Fig. 9 - Oil Pump Inlet Pipe and Screen Details
Fig. 7 - Removing Oil Pump Drive Gear pump
and relative location of parts (In-Line Engine)
body. Since the holes are offset, the cover plate
can be installed in only one position.
4. Install two new drive screws to hold the assembly together.
Remove Pump Drive Gear From Crankshaft
With the lower engine front cover and the lubricating oil pump removed from the engine, the oil pump drive gear may, if
necessary, be removed from the end of the crankshaft as follows:
1. Thread the crankshaft pulley retaining bolt in the end of the crankshaft (Fig. 7).
2. Attach the jaws of a suitable gear puller behind the gear and locate the end of the puller screw in the center of the
pulley retaining bolt.
3. Turn the puller screw clockwise to remove the gear from the crankshaft.
Install Pump Drive Gear on Crankshaft
1. Lubricate the inside diameter of a new oil pump drive gear with engine oil. Then start the gear straight on the
crankshaft. Re-installation of a used gear is not recommended.
2. Position the drive gear installer J 8968-01 over the and of the crankshaft and against the drive gear and force the gear
in place as shown in Fig. 8. When the end of the bore in the tool contacts the end of the crankshaft, the drive gear is
correctly positioned.
3. It is important that the press fit of the drive gear to the crankshaft be checked to be sure that the gear does not slip
on the crankshaft. It is recommended the press fit (slip torque) be checked with tool J 23126. On In line engines, the
drive gear should not slip on the crankshaft at 100 lb.-ft torque.
Do not exceed these torques. If the gear slips
CAUTION:
on the shaft, it is suggested that another oil pump drive gear
be installed.
Install Oil Pump
1. The markings on the pump body indicate the installation as
pertaining to left or right-hand crankshaft rotation. Be sure that
the letters "UP R.H." (right-hand rotation engine) on the pump
body are at the top (Fig. I1).
2. Insert the six bolts with lock washers (if used) through the
pump body and thread them into the engine front cover. lighten
the bolts to 13-17 lb.-ft torque.
Fig. 9 - Oil Pump Inlet Pipe and Screen Details
and Relative Location of Parts (In-Line Engine)
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