TM-9-2815-205-34

ENGINE WITH CONTAINER; MODELS 5063-5299, 5063-5392, 5063-5393, 5063-5395, 5063-5398, 5063-539F, 5063-539L

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

AUGUST 1992

TM-9-2815-205-34 - Page 365 of 596

TM 9-2815-205-34

NOT E

•

Main bearing caps are numbered to correspond with their respective positions in

k.

cylinder bloc

No. 1 bearing cap is located at front of block and stamped on bottom of

front oil pan rail.

•

Install main bearing bolts, bearing caps, stabilizers, and hardened washers (reference

Para 3-53).

(6) Using bore gage, measure diameters of

main bearing bores (36) with bearing

caps in original position. Diameter of main

bearing bore is 3.751 to 3.752 inches. If

bores do not meet these limits, replace

cylinder block.

(7) Measure diameter of camshaft bearing bores. End bearing bores must be 2.3750 to 2.3760

inches for standard bearings and 2.3850 to 2.3860 inches for oversized bearings. Intermediate

bearing bores must be 2.3650 to 2.3660 inches for standard bearings and 2.3750 to 2.3760

inches for oversized bearings.

(8) Check remaining cylinder block surfaces and threaded holes for damage. Check all mating

surfaces or mounting pads for flatness, nicks, and burrs. Clean up damaged threads in tapped

holes with a tap or install helical thread inserts if necessary.

(9) Check for cracking in area between center water transfer holes and cylinder head to block bolt

holes (cam and exhaust sides). If cracks are found, replace cylinder block.

CAUTION

If cylinder block is not to be used immediately, spray machined surfaces with engine oil.

If cylinder block is to be stored for an extended period of time, spray or dip block with

corrosion preventative. Castings free of oil will rust when exposed to atmosphere.

3-235