Jeep UNIVERSAL CJ-2A - Page 32

Jeep UNIVERSAL CJ-2A

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'Jeep'

UNIVERSAL

and

'Jeep'

DISPATCHER

D

Piston

and

connecting

rod

assemblies

may

be

re-

moved

for

repair

with

the

engine

in

the

vehicle

after

draining

the

cooling

system,

removing

the

oil

pan

and

the

cylinder

head,

and

reaming

the

ridges

as

previously

described.

D-18. Remove

Timing

Gear

Cover

Remove

the

bolts,

nuts,

and

lockwashers

that

at-

tach

the

timing

gear

cover

(timing

chain

cover

on

early

models)

to

the

engine.

Remove

the

cover,

timing

pointer,

and

cover

gasket.

Discard

the

gasket.

Remove

the

crankshaft

oil seal.

Remove

the

oil slinger

and

spacer

from

the

crankshaft.

FIG.

33-PULLING

TIMING

GEARS

D-19. Remove

Timing

Gears

Pull

both

the

crankshaft

and

camshaft

gears

(chain

sprockets

on

early

models).

Use

puller

W-172 for

pulling

the

gears. See

Fig.

33.

With

the

threaded

capscrews supplied,

adapt

the

puller

to

the

crank-

shaft

gear

and

pull

the

gear.

With

the

special hook-

type

puller

bolts

that

fit

behind

the

camshaft

gear

flange,

pull

the

camshaft

gear.

Remove

the

Wood-

ruff

keys.

D-20. Remove

Front

End

Plate

Remove

the

screws

and

lockwashers

that

attach

the

front

end

plate

to

the

cylinder

block.

Remove

the

front

end

plate

and

gasket.

Discard

the

gasket.

D-21. Remove

Clutch

NOTE:

Crankshaft,

flywheel,

and

clutch

are

balanced

as

a

unit

in

production.

Before disassembly,

mark

these

components

to

insure

reassembly

in

their

original

relative

positions

to

maintain

this

balance.

Remove

four

bolts

and

lockwashers

diagonally

op-

posite

from

each

other

that

attach

the

clutch

as-

sembly

to

the

flywheel,

leaving

two

opposed

bolts

to

be

loosened

alternately

until

the

clutch

spring

pressure

is relieved.

Then,

supporting

the

clutch

assembly

with

one

hand,

remove

the

two

remaining

bolts.

For

information

on

disassembly,

inspection,

repair

and

assembly

of

the

clutch

refer

to

Section

J.

Instructions

for

removing

the

clutch

when

the

engine is

in

the

vehicle

are

also given

in

Section

J.

D-22. Remove Flywheel

The

flywheel is

attached

to

the

crankshaft

with

two

tapered

dowel

bolts

and

four special bolts.

Remove

these

attaching

parts.

Use a

pry

bar

between

the

flywheel

and

the

back

of

the

engine

and

carefully

loosen

the

flywheel

from

the

crankshaft.

If

the

fly-

wheel is

to

be

removed

with

the

engine

in

the

vehicle,

the

transmission

and

clutch

must

first

be

removed

as

detailed

in

Section

J.

D-23. Remove

Crankshaft

Slide

the

crankshaft

thrust

washer

and

all

end-play

adjusting

shims

off

the

front

end

of

the

crankshaft.

Pull

the

two

pieces

of

rear

main

bearing

cap

packing

out

of

position

between

the

side

of

the

bearing

cap

and

the

cylinder

block.

Note

the

marks

on

the

bearing

caps

and

cylinder

block

for

bearing

number

and

position.

Remove

the

screws

and

lockwashers

that

attach

the

main

bear-

ing

caps

to

the

cylinder

block.

Use

a lifting

bar

beneath

the

ends

of

each

bearing

cap.

Being

careful

not

to

exert

enough

pressure

to

cause

damage

to

the

caps

or

dowels,

pry

the

caps

free.

CAUTION:

If

main

bearing

caps

are

not

removed

carefully

by

raising

both

sides

of

each

cap

evenly

until

free

of

the

dowels,

the

dowels

may

be

bent.

A

bent

main

bearing

cap

dowel

can

cause misalign-

ment

of

the

cap

and

result

in

rapid

bearing

wear.

Therefore,

remove

each

main

bearing

cap

carefully.

If

there

is

reason

to

believe

any

of

the

dowels

have

been

bent

during

the

bearing

cap

removal, replace

them

as

detailed

in

Par.

D-31 c.

Lift'

the

crankshaft

from

the

cylinder

block.

Remove

the

upper

half

of

the

rear

main

bearing

oil seal

from

the

cylinder

block

and

the

lower

half

from

the

oil seal groove

in

the

rear

main

bearing

cap.

Install

the

main

bearing

caps

and

bearings

on

the

cylinder

block

in

their

original positions.

NOTE:

Removal

of

the

crankshaft

may

be

accom-

plished

only

with

the

engine

out

of

the

vehicle.

FIG.

34-REMOVING

VALVE

SPRING

LOCKS

!-Valve

Lock

2-Valve

Spring

3-Tappet

4-Valve

Spring

Lifter

D-24

1

Remove Valves

and

Springs

The

valve

spring

cover

w~~.,._previously

removed.

Use

cloths

to

block

off

the

three

holes

in

the

exhaust

valve

chamber

to

prevent

the

valve

retaining

locks

from

falling

into

the

crankcase

should

they

be

acci-

dentally

dropped.

Using

Valve

Spring

Compressor

31

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