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 TM 55-1905-223-24-3
(b)
Tighten the capscrews on a main bearing cap on engines built with 3/4-diameter main
bearing capscrews to the following values:
1 Tighten both to 90 ft-lb (122 N ) torque.
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2 Tighten both to 170 ft-lb (230 N ) torque.
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3 Tighten both to 255 ft-lb (345 N ) torque.
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4 Loosen capscrews completely.
5 Tighten again as described above.
c.
Install the gear cover (paragraph 3-20).
d.
Install the oil pan (paragraph 3-21).
e.
Install the crankshaft pulley and dampener (paragraph 3-25).
(1)
Check the crankshaft to make sure it rotates freely. Us your hands to rotate the crankshaft.
e
(2)
Check the end clearance of the crankshaft. The end clearance must be between 0.007 inch
(0.18 mm) and 0.018 inch (0.45 mm) for new crankshafts and thrust rings.
(a) Install a dial indicator gauge to the rear face of the cylinder block. Put the contact tip of the
gauge against the end of the crankshaft.
(b) Push the crankshaft toward the front of the cylinder block.
(c) Adjust the indicator to read "0" (zero).
(d) Push the crankshaft toward the rear of the cylinder block. Read the indicator to find the
amount of end clearance.
(3)
If the end clearance is less than 0.007 inch (0.18 mm):
(a) Loosen the capscrews one turn.
(b) Push the crankshaft toward the front and then toward the rear of the cylinder block.
(c) Follow the instructions in step (10) to tighten the capscrews.
(d) Check the end clearance.
NOTE
Make sure the end clearance for a used crankshaft is not more than the worn
limit of 0.022 inch (0.56 mm). If the clearance is more than 0.022 inch (0.56
mm), you must use oversize thrust rings.
(4)
Bend the tang of the lockplates against the head of the capscrews.
4-98
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