3044C Industrial Engine and Engines for Caterpillar Built Machines Cylinder Head - Inspect Caterpillar


Cylinder Head - Inspect
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Table 1
Required Tools    
Part Number     Part Name     Qty    
8S-6691     Cylinder Head Repair Stand     1    
8H-8581     Feeler Gauge     1    

  1. Remove the cylinder head from the engine.

  1. Clean the cylinder head thoroughly. Make sure that the contact surfaces of the cylinder head and the cylinder block are clean, smooth and flat.

  1. Inspect the bottom surface of the cylinder head for pitting, corrosion, and cracks. Inspect the area around the valve seat inserts and the holes for the fuel injection nozzles.



    Illustration 1g00876690

    Typical example

    (1) Cylinder head

    (2) Cylinder head repair stand

  1. Place cylinder head (1) on cylinder head repair stand (2) .



    Illustration 2g00987700

    Measuring points on cylinder head

    (A) Side to side

    (B) End to end

    (C) Corner to corner




    Illustration 3g00987701

    Measuring flatness

    (3) Straight edge

    (4) Feeler gauge

  1. Measure the cylinder head for flatness. Measure the flatness with straight edge (3) and with feeler gauge (4) .

    • Measure the cylinder head from one side to the other side (A) .

    • Measure the cylinder head from one end to the other end (B) .

    • Measure the cylinder head from one corner to the other corner (C) .

    Refer to Specifications, "Cylinder Head" for the requirements of flatness.

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