TM 9-4940-549-14&P
Check cylinder bores for excessive wear. Diameter shall be
(7)
3.7490 to 3.7510 inches.
Inspect cylinder bores for out-of-roundness. Each cylinder
(8)
shall not be out-of-round by more than 0.0005 inch.
Check cylinder bore taper.
Taper shall be 0.0005 inch maxi-
(9)
mum.
Non conformity to dimension specified in steps (7) through (9)
(10)
above requires that cylinders be bored to accept oversized
Temporarily install main bearing caps and check main bearing
(11)
bore diameter. Diameter shall be 3.0665 to 3.0670 inches.
Check camshaft bearing bore diameter. Diameter shall be 2.1870
(12)
to 2.1880 inches.
Visually inspect main bearing and camshaft bearing bore diame-
(13)
ters for nicks and scratches. Remove nicks and scratches with
oil-soaked abrasive paper.
Check oil pump bore diameter. Diameter shall be 2.0000 to
(14)
2.0005 inches.
(15)
Inspect oil pump bore for nicks and scratches. Remove minor
nicks and scratches by polishing with crocus cloth.
(16)
Inspect for broken or damaged studs. If any studs are broken
too short to allow removal, center punch, drill and use an
easy out.
Inspect all gasket surfaces for nicks, burrs, and scratches.
(17)
Remove nicks, burrs, and scratches with oil soaked abrasive
paper.
(18)
Use a straight edge and check the block lengthwise, across
each end and between cylinder bores for warpage. War page
shall not exceed 0.003 inch. Remove studs and guide pins and
mill to a maximum of 0.005 inch off top of block to correct
slight warpage. If cylinder block is warped sufficiently that
milling would radically affect engine performance, replace
block.
Check all internal threads for crossing, stripping, and peen-
(19)
ing, Clean or repair minor thread damage. Repair extensively
damaged threads by reaming, tapping and installing inserts.
Assembly and Installation. Assemble and install cylinder block in
c.
reverse order of removal and disassembly instructions.
12-8. CLUTCH.
Removal and Disassembly.
a.
