BRACKET 3C3656 - Caterpillar

Table 1
Required Tools
Part Number Part Name Qty
8T-0455 Liner Projection Tool Group 1 If the piston height above or below the top face of the cylinder block is outside tolerance, the cylinder head gasket must be replaced. Refer to Specifications, "Cylinder Head" for the tolerance. If any of the following components are replaced or remachined, the piston height must be measured:
Crankshaft
Connecting rod
Piston pin bearing
PistonThe correct piston height must be maintained to ensure that the engine conforms to the standards for emissions.Note: The top of the piston should not be machined. If the original piston is installed, be sure that the original piston is assembled to the correct connecting rod and installed in the original cylinder.
Illustration 1 g00323908
8T-0455 Liner Projection Tool Group
(1) Dial indicator
(2) Gauge body
(3) Gauge block
Use the 8T-0455 Liner Projection Tool Group to measure the piston height above or below the top face of the cylinder block. Use gauge block (3) to zero dial indicator (1).
Illustration 2 g00326383
Measurement of the piston height
(1) Dial indicator
(2) Gauge body
Position gauge body (2) and dial indicator (1) to measure the piston height. Slowly rotate the crankshaft to determine when the piston is at the highest position. Record this dimension. Compare this dimension with the dimensions that are given in Specifications, "Cylinder Head".