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TM 55-1905-220-14-10
5-43. CYLINDER BLOCK - MAINTENANCE INSTRUCTIONS (Cont).
LOCATION
ITEM
ACTION
REMARKS
INSPECT (Cont)
h. Make sure the cylinder liner counterbores in the block are clean and free of dirt.
Then check the depth. The depth must be .4770 inch to .4795 inch and must not
vary more than .0015 inch throughout the entire circumference. The counterbored
surfaces must be smooth and square with the cylinder bore within .001 inch total
indicator reading. There must not be over .001 inch difference between any two
adjacent cylinder counterbores when measured along the cylinder longitudinal
center-line of the cylinder block.
i. Check the main bearing bores as follows:
(1) Check the bore diameters with the main bearing caps in their original positions.
Lubricate the bolt threads and bolt head contact areas with a small quantity of
International Compound No. 2, or equivalent. Then install and tighten the bolts
to 165-175 lb-ft (223.7-237.3 Nm) torque. When making this check, do not
install the main bearing cap stabilizers. The specified bore diameter is 4.812
inch to 4.813 inch. If the bores do not fall within these limits, the cylinder block
must be rejected.
5-638


 


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