Cleaning and inspection
Clean the camshaft in solvent and wipe dry. Inspect the camshaft lobes for scoring, and signs of abnormal wear. Lobe wear characteristics may result in pitting in the general area of the lobe toe. This pitting is not detri-mental to the operation of the camshaft, therefore, the camshaft should not be replaced until the lobe lift loss has exceeded 0005-in.
The lift of the camshaft lobes can ‘be checked with the camshaft installed in the engine or on centres: Refer to “Camshaft Lobe Lift” on page 18.
Check the distributor drive gear for broken or chipped teeth.
Remove light scuffs, scores, or nicks from the camshaft machined surfaces with a smooth oil stone.
Installation
- Oil the camshaft and apply Lubriplate to the lobes. Carefully slide the camshaft through the bearings. Install the camshaft thrust plate
- Install the valve lifters in the bores from which they were removed.
- Install the push rods in their original position. Apply Lubripiate to the valve stem tips and the push rod guides in the cylinder head. Position the rocker arms over the push rods.
- Install the intake manifold and related parts by following steps given under “ Intake Manifold installation “.
- Connect the water temperature sending unit and the engine ground strap.
- Install the bellcrank assembly and accelerator re-tracting spring. Connect the accelerator rod.
- Install the radiator.
On a car with an automatic transmission, connect the transmission oil cooler lines and throttle valve vacuum line.
- Install the heater hose against the automatic choke housing and connect the heater hose at the intake manifold. Position and connect the fuel line.
- Replace the crankshaft front oil seal. Install the timing chain, cylinder front cover and related parts following steps given under “Cylinder Front Cover and Timing Chain Installation.”
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10. With No. 1 piston on T.D.C. at the end of the compression stroke, position the distributor in the block with the rotor at the No. 1 firing position and the points open. Install the hold down clamp.
11. Perform a valve clearance adjustment as outline on page 21.
12. Clean the valve rocker arm covers and the cylinder head gasket surface. Apply oil-resistance sealer to one side of new cover gaskets. Lay the cemented side of the gaskets in place in the covers.
13. Position the covers on the cylinder heads. Make sure the gasket seats evenly all around the head. Install the bolts. The cover is tightened in two steps. Torque the bolts. Two minutes later, re-check bolt tightness.
14. Clean the crankcase ventilation regulator valve, fitting and vent hose, insert the regulator and fitting into the valve rocker arm cover mounting grommet. Position and install the crankcase vent hose.
15. Install the automatic choke heat tube. Install the ignition coil and connect the wires.
16. Install the distributor cap. Position the spark plug wires in the harness brackets on the valve rocker arm covers and connect the spark plug wires. Connect the high tension lead at the coil.
17. Fill and bleed the cooling system. Fill the crankcase with the proper grade and quantity of engine oil.
18. Start the engine and check and adjust the ignition timing. Connect the distributor vacuum line at the carburettor.
19. Operate the engine at fast Idle and check all hose connections and gaskets for leaks. Operate the engine until engine temperatures have stabilized and adjust the engine idle speed and Idle fuel mixture.
20. Install the air cleaner.
21. Connect the automatic choke heat chamber air inlet hose.
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