1967 CHEVROLET CAMARO Chassis Workshop Manual

ENGINE 6-16

5.
Adjust ignition timing and carburetor idle speed and

mixture.

VALVE STEM OIL SEAL AND/OR VALVE SPRING

Replacement

1.
Remove rocker arm cover as outlined.

2.
Remove spark plug, rocker arm and push rod on the

cylinder(s) to be serviced.

3.
Apply compressed air to the spark plug hole to hold

the valves in place.

NOTE: A tool to apply air to the cylinder is

available through local jobbers or may be manu-

factured. In manufacturing this Tool a AC-46N

Spark Plug or its equivalent is recommended.

This will make the Tool universal for all

Chevrolet engines. Chisel the spark plug as

shown, then drive the porcelain out of the plug

by tapping the center electrode against a hard

block. Using a 3/8" pipe tap, cut threads in the

remaining portion of the spark ^>lug and assem-

ble as shown (fig. 3L).

4.
Using Tool J-5892 to compress the valve spring, re-

move the valve locks, valve cap, valve shield and

valve spring and damper (fig. 4L).

5.
Remove the valve stem oil seal.

6. To replace, set the valve spring and damper, valve

shield and valve cap in place. The close coiled end

of the spring is installed against the cylinder head.

Compress the spring with
Too^
J-5892 and install oil

seal in the lower groove of the stem, making sure the

seal'is flat and not twisted.

NOTE: A light coat of oil on the seal will help

prevent twisting.

7.
Install the valve locks and release the compressor

tool, making sure the locks seat properly in the

upper groove of the valve stem.

NOTE: Grease may be used to hold the locks

in place while releasing the compressor tool.

8. Install spark plug, using a new gasket, and torque to

specifications.

9. Install and adjust valve mechanism as outlined.

CYLINDER HEAD ASSEMBLY

Removal

1.
Remove manifold assembly as. outlined.

2.
Remove valve mechanism as outlined.

3.
Drain cooling system (block).

4.
Remove fuel and vacuum line from retaining clip at

water outlet then disconnect wires from temperature

sending units.

5.
Disconnect upper radiator hose at water outlet hous-

ing and battery ground strap at cylinder head.

6. Remove coil (L6 engines only).

7.
Remove cylinder head bolts, cylinder head and gas-

ket. Place cylinder head on two blocks of wood to

prevent damage.

Installation

CAUTION: The gasket surfaces on both the

head and the block must be clean of any foreign
matter and free of nicks or heavy scratches.

Cylinder bolt threads in the block and threads

on the cylinder head bolt must be cleaned. (Dirt

will affect bolt torque.) Do not use gasket sealer

on composition steel asbestos gasket.

Fig. 3L -
AIF
Adapter Tool

1.
Place the gasket in position over the dowel pins with

the bead up.

2.
Carefully guide cylinder head into place over dowel

pins and gasket.

3.
Coat threads of cylinder head bolts with sealing com-

pound and install finger tight.

4.
Tighten cylinder head bolts a little at a time in the

sequence shown on the torque sequence chart until

the specified torque is reached.

5.
Install coil (if removed).

6. Connect upper radiator hose and engine ground strap.

7.
Connect temperature sending unit wires and install

fuel and vacuum lines in clip at water outlet.

8. Fill cooling system.
•

9. Install manifold assembly as outlined.

10.
Install and adjust valve mechanism as outlined.

Fig.
4L
- Compressing Valve Spring

CHEVROLET CHASSIS SERVICE MANUAL

ENGINE 6-17

Fig.
5L
-
Engine Blocked for Pan Removal

NOTE: Do not install rocker arm cover.

11.
Start engine and allow warm up then retorque cylin-

der head
as
outlined in Step 4 and readjust valves as

outlined under Engine Tune Up.

OIL PAN

Removal

Chevrolet
and Camaro

1.
Disconnect battery positive cable.

2.
Remove through bolts from engine front mounts.

3.
Drain radiator, then disconnect upper and lower ra-

diator hoses at radiator.

4.
Remove fan blade as outlined in Section 6K.

5.
Raise vehicle then drain engine oil.

6. Disconnect and remove* starter.

7.
On
vehicles equipped with automatic transmission,

disconnect transmission cooler lines at transmission

and remove converter housing underpan.

8. Disconnect steering
rod at
idler lever then swing

steering linkage for oil pan clearance.

9. Rotate crankshaft until timing mark
on
torsional

damper is at 6:00 o'clock position.

10.
Using
a
suitable jack (and a block of wood to prevent

damaging oil pan), raise engine enough to insert 2"
x

4"
wood blocks under engine mounts (fig. 5L), then

lower engine onto blocks.

NOTE:
If
2"
x
4" wood blocks are cut 5-1/2"

long they can be used on all Chevrolet engines.

The 5-1/2" length up for in line engines and the

4"
side up for V8 engines.

11.
Remove oil pan and discard gaskets and seals.

Cfievel/e

1.
Remove enginfe from vehicle as outlined.

2.
Place engine on jack stands, one at each front mount

and one at transmission extension.

CAUTION: Leave engine lift attached
to
en-

gine.
Do not remove all weight
of
engine from

engine lift.

3.
On
vehicles equipped with automatic transmissions

remove converter housing underpan.

4.
Remove starter.

5.
Remove oil pan and discard gaskets and seals.
Chevy//

1.
Disconnect battery positive cable.

2.
Drain engine oil.

3.
Disconnect then remove starter.

4.
Disconnect-steering idler arm bracket at right hand

frame rail and swing steering linkage down for pan

clearance.

5.
On L6 engines, remove front crossmember.

NOTE:
On
station wagon
let
stabilizer
bar

hang while removing crossmember.
"

6. Remove oil pan and discard gaskets and seals.

Installation

1.
Thoroughly clean all gasket sealing surfaces.

NOTE: Use
a
new pan gasket set.

2.
Install rear seal in rear main bearing cap.

3.
Install front Seal on crankcase front cover pressing

tips into holes provided in cover.

4.
Install side gaskets on cylinder block (fig. 6L).

5.
Complete installation as follows:

Life

1
i

If ^
jfp^;.^3p
>\~^^ \s3^^r' -'••'•'-^^Hll

|^=-5p|:*iil^
mm

Fig.
6L
-
Pan Gaskets and Seals

CHEVROLET CHASSIS SERVICE MANUAL

ENGINE 6-18

NOTE:
Bolts into crankcase cover should be

installed last. They are installed at an angle

and holes line up after rest of pan bolts are

snugged up.

Chevrolet and Camaro

a. If crankshaft was rotated while pan was off, place

timing mark at 6:00 o'clock position.

b.
Install oil pan and torque bolts to specifications.

c. Using a suitable jack (and a block of wood to prevent

damaging oil pan) raise engine enough to remove 2" x

4"
wood blocks, then lower engine.

d. On vehicles equipped with automatic transmission

install converter housing underpan, then connect

transmission cooler lines.

e. Install and connect starter.

f. Lower vehicle and install fan blades as outlined in

Section 6K.

g. Connect upper and lower radiator hoses.

h. Install through bolts in engine front mounts.

i. Connect battery positive cable.

j.
Fill radiator with coolant and fill engine with oil,

then start engine and check for leaks.

Chevelie

* a. Install oil pan and torque bolts to specifications.

b.
On vehicles equipped with automatic transmission,

install converter housing underpan.

c. Install starter.

d. Install engine as outlined.

Chevy II

a. Install oil pan and torque bolts to specifications.

Fig.
7L- Removing Oil Sea! (Lower Half)
Fig.
8L - Removing Oil Seal (Upper Half)

b.
On L6 engines, install front crossmember.

c. Connect steering idler arm.

d. Install starter and connect wires.

e. Connect battery cable, fill with oil, start engine and

check for leaks.

OIL PUMP

Removal

1.
Remove oil pan as outlined.

2.
Remove two flange mounting bolts, pickup pipe bolt,

then remove pump and screen as an assembly.

Installation

1.
Align oil pump drive shafts to match with distributor

tang, then install oil pump to block positioning flange

over distributor lower bushing. Use no gasket.

NOTE:
Oil pump should slide easily into place,

if not, remove and reposition slot to align with

distributor tang.

2.
Install oil pan using new gaskets and seals as

outlined.

CHEVROLET CHASSIS SERVICE MANUAL

ENGINE 6-19

OIL SEAL (REAR MAIN)

Replacement

The rear main bearing oil seal can be replaced (both

halves) without removal of the crankshaft.

NOTE:
Always replace the upper and lower

seal as a unit. Install with the lip facing toward

the front of the engine.

1.
With the oil pan removed, remove the rear main

bearing cap.

2.
Remove oil seal from the groove by lifting the end

tab (fig. 7L) then clean seal groove.

3.
Lubricate the lip and O.D. of a new seal with engine

oil. Keep oil off the parting line surface. Insert

seal in cap and roll it into place with finger and

thumb,
using light pressure so beads on seal O.D.

are not cut by seal groove at cap parting line. Be

sure tabs on seal are properly located in cross

grooves.

4.
To remove the upper half of the seal, use a small

hammer to tap a brass pin punch on one end of seal

until it protrudes far enough to be removed with

pliers (fig. 8L).

NOTE:
Always clean crankshaft surface re-

moving all foreign deposits before installing a

new seal. Also clean seal groove.

5. Lubricate the lip and O.D. of a new seal with engine

oil. Keep oil off the parting line surface. Gradually

push with a hammer handle, while turning crank-

shaft, until seal is rolled into place. (Similar to in-

stalling a main bearing.) Be careful that seal bead

on O.D. is not cut. Compress seal towards crank-

shaft as much as possible.

6. Install the rear main bearing cap (with new seal) and

torque to specifications. Be sure cross seal tabs

are in place and properly seated.

CRANKSHAFT PULLEY AND HUB

(Chevy II with L4 Engine)

Removal

1.
Drain radiator and disconnect upper and lower radi-

ator hoses at radiator.

2.
Remove radiator core as outlined in Section 13.

3.
Remove fan belt. Remove crankshaft pulley from

pulley hub.

4.
Install puller Tool J-6978 to pulley hub with two

3/8"
x 2" and one 5/16" x 2" bolts and remove hub

then remove puller tool.

Installation

1.
Coat oil seal contact area on hub with engine oil

position hub over crankshaft and key and start hub

into position with a mallet. Using Tool J-5590 drive

onto crankshaft until it bottoms against crankshaft

gear.

NOTE:
Crankshaft extends slightly through hub

and a tool is necessary to drive hub completely

into bottomed position.

2.
Install pulley onto hub.

NOTE:
There are two 3/8" holes and one

5/16" hole that must be matched on hub in order
Fig.
9L - Removing Torsional Damper

to properly position timing mark.

3.
Install fan belt and adjust using strand tension gauge.

4.
Install radiator as outlined in Section 13.

TORSIONAL DAMPER

Removal

1.
Remove radiator core, as outlined in Section 13.

2.
Remove fan belt and (if so equipped) accessory drive

pulley and belt.

3.
Install Tool J-6978 to damper and turn puller screw

to remove damper (fig. 9L). Remove tool.

Installation

1.
Coat front cover oil seal contact area of damper with

engine oil.

CAUTION: It is necessary to use installer

Tool J-22197 to prevent the inertia weight sec-

Fig.
10L - Installing Torsional Damper

CHEVROLET CHASSIS SERVICE MANUAL

ENGINE 6-20

Fig.
11 L
- J-21742 Centering Tool in Cover

tion from walking off the hub during installation

of damper.

2.

3.
Attach damper installer Tool J-22197 to damper.

Tighten fingers of tool to prevent weight from moving

(fig. 10L).

Position damper on crankshaft and drive into posi-

tion, using J-5590, until it bottoms against crankshaft

gear (fig. 10L). Remove installer tool.

4.
Install fan belt and adjust using strand tension gauge.

5.
If so equipped, install accessory drive pulley and

belt.

6. Install radiator core as outlined in Section 13.

7.
Fill cooling system and check for leaks.

CRANKCASE FRONT COVER

Fig.
121
- Installing Oil Seal (Cover Removed)
Fig. 13L- Installing Oil Seal (Cover installed)

Removal

1.
Remove oil pan as outlined.

2.
Remove crankshaft pulley and hub or torsional

damper as outlined.

3.
Remove crankcase front coyer attaching bolts, re-

move cover and gasket.

Installation

1.
Clean gasket surfaces on block and crankcase front

cover.

2.
Install centering Tool J-996 or Tool J-21742 in

crankcase front cover seal (fig. 11L).

3.
Coat the gasket with gasket sealer and place in posi-

tion on cover, then install crankcase front cover to

block and torque bolts to specifications.

4.
Remove centering tool.

NOTE: It is important that centering tool be

used to align crankcase front cover so that

crankshaft hub or torsional damper installation

will not damage seal and to position seal evenly

around the balancer or hub surface.

5.
Install crankshaft hub and/or torsional damper as

outlined.

6. Install oil pan with new gaskets and seals as outlined.

OIL SEAL (FRONT COVER)

Replacement

With Cover Removal

1.
With cover removed, pry old seal out of cover from

the front with screw driver being careful not to

distort cover.

2.
Install new seal so that open end of the seal is toward

the inside of cover and drive it into position with

ToolJ-995 (fig. 12L).

CHEVROLET CHASSIS SERVICE MANUAL

ENGINE 6-21

CAUTION: Support cover
•
at sealing area.

(Tool J-971 may be used as support.)

Without Cover
Removal

1.
With crankshaft pulley and nub or torsional damper

removed, pry old seal out of cover from the front

with a large screw driver, being careful not to dam-

age the seal surface on the cover.

2.
Install new seal so that open end of seal is toward the

inside of cover and drive it into position with Tool

J-8340 (fig. 13L).

CAMSHAFT

Measuring Lobe Lift

NOTE: Procedure is similar to that used for

checking valve timing.. If improper valve

operation is indicated, measure the lift of each

push rod in consecutive order and record the

readings.

1.
Remove valve mechanism as outlined.

2.
Position indicator with ball socket adapter on push

rod (fig. 14L).

3.
Rotate the crankshaft slowly in the direction of rota-

tion until the lifter is on the heel of the cam lobe.

At this point, the push rod will be in its lowest

position.

4.
Set dial indicator on zero, then rotate the crankshaft

slowly, or attach an auxiliary starter switch and

"bump" the engine over, until the push rod is in the

fully raised position.

CAUTION: The primary distributor lead must

be disconnected from the negative post on the

coil and the ignition switch must be in the ON

position. Failure to do this will result in a

damaged grounding circuit in the ignition switch.
Fig.
15L - Timing Gear Marks

5.
Compare the total lift recorded from the dial indica-

tor with specifications.

6. Continue to rotate the crankshaft until the indicator

reads zero. This will be a check on the accuracy of

the original indicator reading.

7.
If camshaft readings for all lobes are within specifi-

cations, remove dial indicator assembly.

8. Install and adjust valve mechanism as outlined.

Removal

1.
Remove valve lifters as outlined,

2.
Remove crankcase front cover as outlined.

3.
Remove radiator as outlined in Section 13.

4.
Remove grille as outlined in Section 13.

5.
Remove fuel pump as outlined in Section 6M.

6. Align timing gear marks then remove the two cam-

shaft thrust plate bolts by working through holes in

Fig.
ML - Measuring Camshaft Lobe Lift
Fig.
16L - Checking Camshaft Gear Runout

CHEVROLET CHASSIS SERVICE MANUAL

ENGINE 6-22

the camshaft gear (fig. 15L).

7.
Remove the camshaft and gear assembly by pulling it

out through the front of the block.

NOTE: Support camshaft carefully when re-

moving so as not to damage camshaft bearings.

Installation

1.
Install the camshaft and gear assembly in the engine

block, being careful not to damage camshaft bearings

or camshaft.

2.
Turn crankshaft and camshaft so that the valve tim-

ing marks on the gear teeth will line up (fig. 15L).

Push camshaft into position. Install camshaft thrust

plate-to-block bolts and torque to specifications.

3.
Check camshaft and crankshaft gear run out with a

dial indicator (fig. 16L). The camshaft gear"run out

should not exceed,.004" and the crankshaft gear run

out should not exceed
.003".

4.
If gear mm out is excessive, the gear will have to be

removed and any burrs cleaned from the shaft or the

gear will have to be replaced.

5.
Check the backlash between the timing gear teeth

with a dial indicator (fig. 17L). The backlash should

not be less than .004" nor more than .006".

6. Install fuel pump as outlined in Section 6M.

7.
Install grille as outlined in Section 13.

8. Install crankcase front cover as outlined.

9. Install radiator as outlined in Section 13.

10.
Install valve lifters as outlined.

TIMING GEARS

Replacement

With camshaft removed, crankshaft gear may be re-

moved using Tool J-8105 (fig. 18L). To install crankshaft

gear use Tool J-5590 (fig. 19L). For camshaft gear re-

placement, refer to Section 6, "Camshaft Disassembly"

of the Overhaul Manual.
Fig.
18L
- Removing Crankshaft Gear

Fig.
19L- Installing Crankshaft Gear

FLYWHEEL

Removal

With transmission and/or clutch housing and clutch re-

moved from engine, remove the flywheel.

Installation

1.
Clean the mating surfaces of flywheel and crankshaft

to make certain there are no burrs.

2.
Install flywheel on crankshaft and position to align

dowel hole of crankshaft flange and flywheel (fig.

20L).

NOTE: On Automatic Transmission equipped

engines, the flywheel must be installed with the

flange collar to transmission side (fig. 20L).

3.
Install bolts and torque to specifications.

SYNCHROMESH
CONVERTER

BOLT AREA -

DEPRESSED
•RING

GEAR

TRANS.,

AUTOMATIC

Fig. 17L
—
Checking Timing Gear Backlash
Fig. 20L r Flywheel Installation (Typical)

CHEVROLET CHASSIS SERVICE MANUAL

ENGINE 6-23

ENGINE MOUNTS

Engine mounts (fig. 21L) are the non-adjustable type

and seldom require service. Broken or deteriorated

mounts should be replaced immediately, because of the

added strain placed on other mounts and drive line

components.

Front Mount Replacement

Chevrolet,
Chevelle, and Comoro

1.
Remove nut, washer, spacer then engine mount

through-bolt.

2.
Raise engine to release weight from mount.

3.
Remove mount, stop bracket and frame bracket as-

sembly from crossmember, then remove stop

bracket and mount from frame bracket.

4.
Install stop bracket and new mount on frame bracket,

then install assembly on crossmember.

5.
Lower engine, install through-bolt and tighten all

mount bolts to specified torques.

Chevy II

, 1. Remove nut, washer and engine mount through-bolt.

2.
Raise engine to release weight from mount.

3.
Remove bracket-to-mount bolt, then remove mount.

4.
Install new mount on bracket.

5.
Lower engine, install through-bolt and tighten all

mount bolts to specified torques.

Rear Mount Replacement
Chevrolet

1.
Remove crossmember-to-mount bolts.

2.
Raise transmission to release weight from mount.

3.
Remove mount-to-trans mission bolts, then remove

mount and spacer.

4.
Install spacer and new mount on transmission.

5.
While lowering transmission, align and start cross-

member-to-mount bolts.

6. tower transmission and tighten all mounting bolts

to specified torques.

Chevelle and Camaro

1.
Remove crossmember-to-mount bolts.

2.
Raise transmission to release weight from mount.

3.
Remove mount-to-transmission bolts, then remove

mount.

4.
Install new mount on transmission.

5.
While lowering transmission align and start cross-

member-to-mount bolts.

6. Lower transmission and tighten all mounting bolts to

specified torques.

Chevy II

1.
Remove crossmember-to-mount bolts.

2.
Raise transmission to release weight from mount.

3.
Remove mount-to-transmission bolts, then remove

mount.

4.
Install new mount on transmission.

5.
While lowering transmission align and start cross-

member-to-mount bolts.

6. Lower transmission and tighten all mounting bolts

to specified torques.

FRONT

CHEVROLET

REAR

REAR
L4 FRONT

CHEVY II

L6 FRONT

L6 REAR
FRONT

CAMARO

REAR

Fig.
21L- Engine Mounts

CHEVROLET CHASSIS SERVICE MANUAL