Mercury Monterey Specifications download pdf (Page 34)

PART 1-2-MILEAGE MAKER SIX 1-27

OIL INLET TUBE

COTTER PIN

ADJUSTING SCREW

PS -* OIL OUTLET

TUBE

BRACKET

SPRING

WASHER

A1560

FIG.

20-Valve Rocker Arm Shaft Assembly

head. The cover is tightened in two

steps.

Torque the retaining bolts to

specifications. Two minutes after the

initial tightening, torque the bolts to

the same specifications. Install the

air cleaner.

DISASSEMBLY

Remove the cotter pins from

each end of the valve rocker arm

shaft. Remove the flat washers and

spring washers.

Slide the rocker arms, springs,

and supports off the shaft. Be sure

to identify the parts.

If it is necessary to disassemble

a valve rocker arm, push the eccen-

tric retaining pin outward using

needle nose pliers. Remove the ec-

centric, plunger, plunger spring and

eccentric bearing spring. Identify all

parts so that they may be installed

in the rocker from which they were

removed.

If it is necessary to remove the

plugs from each end of the shaft,

drill or pierce the plug on one end.

Use a steel rod to knock out the plug

on the opposite end. Working from

the open end, knock out the remain-

ing plug.

ASSEMBLY

Lubricate all moving parts with

engine oil. Apply Lubriplate to the

pad and to the eccentric foot of the

valve rocker arms.

If the plugs were removed from

the ends of the shaft, use a blunt tool

or large diameter pin punch and in-

stall a plug, cup side out, in each end

of the shaft.

If a valve rocker arm was dis-

assembled, install the plunger spring,

plunger, eccentric bearing spring, and

eccentric in the rocker arm from

which they were removed (Fig. 19).

Be sure the eccentric is installed with

the recessed dot (side with the small-

est radius) toward the spring and

plunger. Push the eccentric retain-

ing pin inward to its original position.

Install a spring washer, a flat

washer, and a cotter pin on one end

of the shaft.

Install the rocker arms, sup-

ports,

and springs in the order shown

in Fig. 20. Be sure the oil holes in

the shaft are facing downward. Com-

plete the assembly by installing the

remaining spring washer, flat washer,

and the cotter pin.

CYLINDER HEAD

Cylinder head repair operations

and checks, such as valve and valve

seat refacing, cylinder head flatness

checks, etc., are covered in Part 1-1.

REMOVAL

Drain the cooling system. Re-

move the air cleaner.

Disconnect the radiator upper

hose at the radiator and the heater

hose at the coolant outlet housing.

BOLT FIXTURES TO INTAKE PORTS

Tool-T52P-6085-DAD

039-A

Disconnect the water tempera-

ture sending unit wire at the sending

unit, and the battery ground cable

at the cylinder head.

Disconnect the carburetor fuel

inlet line and the distributor vacuum

line at the distributor.

Disconnect the high tension

lead at the coil. Remove the coil from

the head and move it to one side. Re-

move the distributor cap and the

spark plug wires as an assembly. Re-

move the spark plugs.

6. Disconnect the fuel inlet line

and the distributor vacuum line at

the carburetor. Remove the lines as

an assembly.

On an engine with positive crank-

case ventilation, disconnect the ex-

haust tube at the regulator valve and

crankcase outlet. Remove the exhaust

tube.

Disconnect the choke control

cable at the carburetor.

8. Disconnect the accelerator re-

tracting spring. Disconnect the ac-

celerator rod assembly at the accel-

erator assembly.

9. Remove the valve rocker arm

shaft assembly as outlined in this

section.

10.

Remove the valve push rods in

sequence and identify them so that

they can be installed in their original

position (Fig. 21).

11.

Remove the manifold to cylin-

der head bolts (two manifold bolts

retain the radiator supply tank

mounting bracket and one bolt re-

tains the oil level dipstick tube brack-

et).

Pull the manifold assembly away

/l6"—14

x 6"

BOLT.

CUT OFF

HEAD,

TAPER

END AND

SLOT

FOR

SCREWDRIVER,

I AS

SHOWN.

A1040-A

A1O38-A

FIG.

21-Valve Push Rod Removal

FIG.

22-Cylinder Head Holding

Fixtures

FIG.

23-Cylinder Head Guide

Studs

1 2 ... 29 30 31 32 33 34 35 36 37

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Mercury Monterey Specifications Page 34

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