Set up magnaglo tester for coil shot method. Apply coil shot amperage. Adjust amperage to value
Ampere turn is an electrical current of one ampere flowing through the coil, multiplied by the
number of turns in the coil.
Gear Outside Diameter
Less than 4 inch (101 mm)
4 inch to 8 inch (101 mm to 203 mm)
Greater than 8 inch (203 mm)
Check gear for cracks.
Measure the gear bore inside diameter. Replace the gear if the inside diameter is not between 2.2490
inch (57.125 mm) and 2.2500 inch (57.150 mm).
The camshaft gear must be removed to adjust the injector timing. If the camshaft is replaced, do
not install the camshaft gear until the injector timing has been adjusted using a slip-fit gear.
Install correct camshaft key (1, FIG. 4-65).
Wear protective clothing to prevent personal injury from burns.
Do not attempt to install the gear without using heat.
Do not exceed the specified time or
temperature. Damage to the gear will result.
Heat the camshaft gear in a pre-heated oven at 450 F (235 ) for a minimum of 1 hour to a maximum of
Lubricate the camshaft at the gear location with lubricate.
Install the shaft retaining plate (2, FIG. 4-64). Ensure grooves on shaft retaining plate are toward the
camshaft gear (1).
The timing mark on the camshaft gear must be visible from the front of the camshaft after the gear
is installed. The keyway must be aligned with the key in the gear.