FIGURE 4-82. Measuring Camshaft Bores.

TM 55-1905-223-24-4

d. Inspect the main bearing bores for damage or abnormal wear.

e. Inspect the camshaft bores for scoring or excessive wear.

Measure the camshaft bores (FIGURE 4-82). Diameter: maximum 2.1324 inch (54.164mm). The limit for

number one bore applies to the ID of the bushing.

FIGURE 4-82. Measuring Camshaft Bores.

g. Using a universal bushing installation tube, drive the cam bushing from the cylinder block. Inspect the tappet

bores for scoring or excessive wear (FIGURE 4-83).

Diameter:

Minimum 0.630 inch (16.000mm)

Maximum 0.632 inch (16.055mm)

FIGURE 4-83. Inspecting Tappet Bores.

REPAIR

a. Perform the following steps for cleaning of the cylinder block and deglazing the bores.

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