FRAME GP-FRONT 3613985 - Caterpillar

Table 1
Required Tools
Tool Part Number Description Qty
A 136-4632 Timing Pin 1
B 139-7063 Timing Pin Adapter 1
C 5P-7305 Engine Turning Tool 1
D 9U-6943
or
9U-7336 Housing As 1
E 178-8615 Engine Turning Tool 1
Illustration 1 g01140081
Timing hole location (typical example)
Illustration 2 g01140082
Timing hole location (typical example)
Illustration 3 g01140087
Timing hole location (typical example)
Note: The hole for the timing pin may be in either of the following locations:
Right front face of the flywheel housing
Left front face of the flywheel housing
Remove plug (1) from flywheel housing (2). Insert Tooling (A) through the timing hole in the flywheel housing. Note: If necessary, use Tooling (B) to adapt the timing pin to a larger timing hole.
Carefully thread the pin assembly into the flywheel housing. Release the lock that is on the handle of the tool in order to allow the pin to locate the timing hole that is in the flywheel.
Use Tooling (C), Tooling (D), and a ratchet in order to turn the engine in the direction of normal engine rotation. Normal engine rotation is counterclockwise, as the engine is viewed from the flywheel end. Note: Tooling (E) can be used to turn the crankshaft from the front of the engine.
Slowly turn the flywheel until Tooling (A) engages with the hole that is in the flywheel. If the flywheel has been turned beyond the point of engagement, use the following procedure to readjust the flywheel and try again:
Retract the pin for Tooling (A) and lock the tool in the retracted position.
Turn the flywheel in the direction that is opposite of normal engine rotation. Rotate the engine past the timing hole by at least 30 degrees.
Unlock Tooling (A) in order to locate the timing hole that is in the flywheel. Turn the flywheel in the direction of normal engine rotation until the timing pin engages into the timing hole that is in the flywheel.
Use the following procedure in order to determine the stroke position of the no. 1 piston:
Remove the valve mechanism cover.
Check the positions of the inlet valves and the exhaust valve for the no. 1 piston. The no. 1 piston will be in the compression stroke if the following conditions are satisfied:
No. 1 piston's inlet valves and the exhaust valve is fully closed.
No. 1 piston's rocker arms can be moved by hand.If these conditions are not met, use the same conditions to check the stroke position of the no. 6 piston. If the no. 6 piston is in the compression stroke, you must rotate the flywheel for an additional 360 degrees in order to place the no. 1 piston in the compression stroke.