Section VII. CONNECTING RODS AND CRANKSHAFT

TM 10-3930-633-34

original bore, positioning the lower end of the rods in

(9) Prime the oil pump by filling the inlet

the valve lifter socket.

opening with oil and rotate the pump shaft until oil

emerges from the outlet opening. Install the oil pump

(17) Apply Lubriplate or equivalent to the

and the oil pump inlet tube. Install the oil pan and

rocker arm fulcrum seat and the fulcrum seat socket

replated parts.

in the rocker arm. Position the rocker arms and

tighten the stud nuts just enough to hold the push

(10) Clean the cylinder head and cylinder

rods in position. Adjust the valve clearance according

block gasket surface. Clean the exhaust manifold and

to paragraph 6-13.1.

exhaust pipe gasket surfaces.

(18) Clean the valve rocker arm cover. Place

(11) If the cylinder head was removed for a cyl-

the new gasket in the cover making sure that the tabs

inder head gasket replacement, check the flatness of

of the gasket engage the notches provided in the

the head and block gasket surfaces. Cylinder head

cover. Position the cover, making sure that the gasket

must be flat within 0.006 inch in any 6 inches of sur-

seats evenly around the cylinder head. Install the

face, and within 0.007 inch overall.

cover bolts and torque in sequence (starting in the

(12) Position the gasket over the dowel pins on

center) to specifications.

the cylinder block.

(19) Connect the spark plug wires to the spark

(13) Install lifting eyes on the cylinder head in

plugs.

the location shown in figure 6-7.3 and use a floor

(20) Connect the crankcase vent hose to the in-

crane and lifting sling to lift the cylinder head over

let tube in the intake manifold. Install the crankcase

the cylinder block. Lower it carefully until it is prop-

ventilation regulator valve in the valve rocker arm

erly positioned on the block and dowel pins. Remove

cover.

the hoist and lifting eyes.

(21) Position the fuel inlet line and the distribu-

(14) Coat the threads of the cylinder head bolts

tor vacuum line on the engine. Connect the

with engine oil. Install the bolts.

distributor vacuum line to the distributor and carbu-

retor. Connect the carburetor fuel inlet line to the

(15) Torque the bolts in sequence (fig. 6-7.3)

carburetor and fuel pump.

to specification in the following steps:

(22) Connect the accelerator cable to the car-

(a) Step 1. Torque in sequence to 50-55

buretor. Install the accelerator cable retracting

ft/lbs.

spring. Connect the choke cable to the carburetor.

(b) Step 2. Torque in sequence to 60-65

(23) Connect the radiator upper hose to the

ft/lbs.

coolant outlet housing, but do not tighten the clamp.

(24) Fill and bleed the cooling system, then

ft/lbs.

tighten the heater hose clamp.

When cylinder head bolts have been tightened it is

(25) Operate the engine until engine tempera-

not necessary to retorque the bolts after extended

tures have stabilized. Adjust the engine idle speed

operation.

and idle fuel mixture. Check for fuel, oil and coolant

leaks.

(16) Apply Lubriplate or equivalent to both

(26) Install the air cleaner ductwork.

ends of the push rods. Install the push rods in their

Section VII. CONNECTING RODS AND CRANKSHAFT

6-29. Crankshaft Removal and Installation

See figure 6-34 for parts identification of

crankshaft and related parts.

Change 1

6-28