Cloyes Hex-A-Just 9-3146B (SB Chevy Rocket with BB Crank) User Manual

Cloyes For the car

April 29, 2009

Installation Instructions

9-3146B Hex-A-Just® True Roller Timing Set

BEFORE YOU BEGIN: READ ALL OF THESE INSTRUCTIONS FIRST !!!

Note: The installation procedures which follow assume that the engine has been disassembled
and cleaned as it would be for a normal timing set change.

YOU WILL NEED:
TOOLS:

1/4" Hex Bit Socket or Hex Wrench

Torque Wrench

Hammer

Sleeve to fit over crankshaft for installing Crankshaft Sprocket
Degree Wheel (Optional, but Recommended)

SUPPLIES:

Assembly Lube or Camshaft Lube
Cloyes Cam Button (Part Number 9-200 or 9-202) (Optional, but Recommended).

1.

Prepare the Engine. Loosen all rocker arms so that the camshaft can rotate freely.

Clean everything! Make sure that the engine mounting surfaces and timing set
components are as clean as possible. The life of the chain and bearings depends on it.

Mount the Crankshaft Sprocket. Select the appropriate keyway for the camshaft timing
baseline desired. We recommend the Standard Timing position, which used the round
timing mark and round keyway mark. Carefully tap the sprocket onto the crankshaft using a
sleeve to protect the sprocket. Make sure that the sprocket is fully seated on the
crankshaft. Rotate the crankshaft until the appropriate crankshaft sprocket timing mark is in
the 12:00 position. Make sure that the number one piston is at top dead center.

Insert the Hex-A-Just® Timing Bushing. Insert the

offset bushing (with the Hex hole) into the slot in the
camshaft sprocket hub. Rotate it with a 1/4" Hex Wrench so
that the timing mark on the bushing points away from the
center of the hub (Figure 1). The

Hex-A-Just® Adjustable

Timing Bushing is infinitely adjustable so you can fine adjust
your engine's CAMSHAFT TIMING to EXACTLY WHERE
YOU WANT IT

Install the Camshaft Thrust Bearing. Install the Thrust Needle Bearing on the back side
of the camshaft gear

with the black side of the bearing facing gear hub, so the silver

side of the bearing will be facing the block.

Failure to install correctly will cause a

severe wear issue!

Inserting Offset Bushing

(Figure 1)