Cloyes Hex-A-Just 9-3153A (Chevy LS1) User Manual

Page 2

9-3153A 2

Adjust the Camshaft Timing. Do NOT try to turn the camshaft with the bushing unless
there is

NO LOAD on the camshaft. There must be NO VALVE SPRING PRESSURE

against the camshaft or the

Hex-A-Just

bushing will

SPLIT. Make sure that the three

camshaft bolts are

LOOSE. For a simple installation, adjust the Hex-A-Just

bushing to

the desired timing setting (Figure 2). For a more accurate installation, use a degree
wheel. The degree wheel method is strongly
recommended.

Torque Loose Bolts. Torque the three (3) Cam
Sprocket mounting bolts to 300 in-lb (25 ft-lb).

Lubricate the Timing Set. Make sure that the
engine oil has a clear path to the timing set through
the lifter valley oil drain-back holes, or through
some other means. A timing set requires plenty of oil to survive. Before installing the
timing cover gasket and timing cover, pour plenty of assembly lube over the sprockets
and bearings. Assembly lube will stay on the sprockets until the engine is started.

Install the Oil Pump Driver. Using a sleeve, Carefully press the oil pump driver onto the
nose of the crankshaft until the driver is in hard contact with the crankshaft sprocket.

10.

Timing Cover and Gasket. Install the timing cover gasket using a small amount of
gasket sealer if desired. Mount the timing cover and install the mounting bolts. Torque
these bolts as specified by the manufacturer.