C4.4 Industrial Engine Finding Top Center Position for No. 1 Piston Caterpillar


Finding Top Center Position for No. 1 Piston
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Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
A(1)  9U-6198  Crankshaft Turning Tool 
A(2)  5P-7306  Housing 
5P-7305 Engine Turning Tool 
230-6284  Timing Pin (Camshaft) 
136-4632  Timing Pin (Crankshaft) 
(1) The Crankshaft Turning Tool is used on the front pulley.
(2) This Tool is used in the aperture for the electric starting motor.

Note: Either Tooling (A) can be used. Use the Tooling that is most suitable.

  1. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and Install".


    Illustration 1g01907734
    Typical example


    Illustration 2g01907735
    Typical example

  2. Use Tooling (A) in order to rotate the crankshaft until the Hole (X) in the camshaft gear (1) aligns with the hole in the front housing. Refer to illustration 1. Remove the plug (2) from the cylinder block. Install Tooling (C) into the Hole (Y) in the cylinder block. Use Tooling (C) in order to lock the crankshaft in the correct position.

    Note: Do not use excessive force to install Tooling (C). Do not use Tooling (C) to hold the crankshaft during repairs.

  3. Install Tooling (B) through the hole (X) in the camshaft gear (1) into the front housing. Use Tooling (B) in order to lock the camshaft in the correct position.

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