Figure 6-47. Aligning Cylinder Front Cover.

10-3930-633-34

replacement, the engine must be removed from

(4) Remove the cam screw and washer from

the vehicle and installed on a work stand (fig. 6-

the end of the crankshaft and remove the damper

3).

(fig. 6-35).

a. Removal.

(5) Remove the oil level dipstick. Remove

the oil pan and related parts by following the

(1) Remove the starter.

procedure under Oil Pan Removal, paragraph 6-

( 2 ) Remove the transmission from the

43, Remove the oil pump screen and inlet tube

vehicle, following the procedures in Chapter 2,

assembly.

Section IV.

(6) Remove the cylinder front cover and

(3) Remove the flywheel attaching bolts and

discard the gasket. It is good practice to replace

remove the flywheel and engine rear cover plate.

the oil seal each time the cylinder front cover is

(4) Use an awl to punch two holes in the

removed.

crankshaft rear oil seal. Punch the holes on op-

(7) Drive out the old seal with a pin punch.

posite sides of the crankshaft and just above the

Clean out the recess in the cover.

bearing cap to cylinder block split line. Install a

b. Installation.

sheet metal screw in each hole. Use two large

screwdrivers or small pry bars and pry against

(1) Coat a new seal with grease and install

the seal (fig. 6-40). Drive the seal in until it is

both screws at the same time to remove the

fully seated in the recess. After installation, check

crankshaft rear oil seal. It may be necessary to

to be sure the seal is properly positioned in the

place small blocks of wood against the cylinder

cover and the spring is properly positioned in the

block to provide a fulcrum point for the pry bars.

seal.

Use caution throughout this procedure to avoid

scratching or otherwise damaging the crankshaft

(2) Clean the cylinder front cover and the

gasket surfaces of the cylinder block. Coat the

oil seal surface.

gasket surface of the block and cover with oil-

(5) Clean the oil seal recess in the cylinder

resistant sealer. Position a new gasket on the

block and main bearing cap.

block.

b. Installation.

(3) Insert the small diameter end of the cover

(1) Clean, inspect and polish the rear oil seal

alignment tool in the bore of the cover. Position

rubbing surface on the crankshaft, following the

the cover and pilot assembly over the end of the

procedures in paragraph 6-30. Coat a new oil seal

crankshaft and against the block (fig. 6-47), being

and the crankshaft with a light film of engine oil.

careful to align the cover flush with the cylinder

Start the seal in the recess and install it with the

block oil pan gasket surface. Install the alternator

tool as shown in figure 6-40. Keep the tool

adjusting arm and cylinder front cover bolts.

straight with the centerline of the crankshaft and

Torque all the bolts to specifications.

install the seal until the tool contacts the cylinder

block surface. Remove the tool and inspect the

seal to be sure it was not damaged during in-

stallation.

(2) Install the engine rear cover plate.

Position the flywheel on the crankshaft flange.

Coat the threads of the flywheel attaching bolts

with oil-resistant sealer and install the bolts.

Torque the bolts in sequence across from each

other to specifications.

(3) Install the transmission, following the

procedure in Chapter 2, Section IV. Do not adjust

the transmission linkage.

6-36. Cylinder Front Cover and Front Oil Seal

a. Removal.

(1) Drain the cooling system and crankcase.

(2) Remove the radiator.

(3) Remove the alternator adjusting arm

Figure 6-47. Aligning Cylinder Front Cover.

bolt, loosen the drive belt and swing the adjusting

arm out of the way. Remove the fan, drive belts

and pulley. It may be necessary to remove the air

compressor belt and/or steering pump belt.

6-35