3304 VEHICULAR ENGINES
SPECIFICATIONS
TM 5-3805-263-14&P-2
CYLINDER BLOCK
(1) Thickness of spacer
plate .................... 9.970 ± 0.025 mm (.3925 ± .0010 in.)
Thickness of spacer plate
gasket . . . . . . . . . . . . . . . . 0.208 ± 0.025 mm (.0082 ± .0010 in.)
NOTE: For height of liner over top of spacer plate make reference to
CYLINDER LINER PROJECTION.
(2) Camshaft bearing bore
(installed) . . . . . . . . . .
58.801 ± 0.051 mm (2.3150 ± .0020 in.)
Bore in block for camshaft
bearings . . . . . . . . . . 65.100 ± 0.025 mm (2.5630 ± .0010 in.)
Depth to install camshaft bearings at
both ends of block . . . . . . . . . . . . . . . .
0.5 ± 0.5 mm (.02 ± .02 in.)
NOTE: The camshaft bearings must be installed with the oil hole down
and the joint above horizontal centerline 8 ± 5°.
(3)
Bore in block for main bearings
(standard size).. 96.926 ± 0.013 mm (3.8160 ± .0005 in.)
Bore in block for main bearings 0.51 mm (.020 tn.)
oversize . . . . . . . . . . . . 97.434 ± 0.013 mm (3.8360 ± .0005 in.)
(4)
Dimension from center of main bearing
bore to top of cylinder block
(new) . . . . . . . . .
383.51 ± 0.15 mm (15.099 ± .006 in.)
(5)
Dimension from center of main bearing
bore to bottom of cylinder block
(new) . . . . . . . . . . .
154.00 ± 0.10 mm (6.063 ± .004 in.)
(6)
Clearance between main bearing cap and cylinder block 0.033
mm (.0013 in.) Tight to 0.043 mm (.0017 in.) Loose.
Main bearing cap
width . . . . . . . . . . . . . . 165.095 ± 0.020 mm (6.4996 ± .0008 in.)
Width of cylinder block for main bearing
cap . . . . . . . . . . . . . . 165.100 ± 0.018 mm (6.5000 ± .0007 in.)
CAUTION
There are holes in the bores for the main bearings, between
the cylinders for piston cooling orifices. Those holes must
have orificer (9) installed.
(7)
Bore in block for balancer
bearing. . . . . . . . . . . . .57.851 ± 0.025 mm (2.2776 ± .0010 in.)
NOTE: Install balancer bearings so that the oil hole in the bearings is in
alignment with the oil hole in the block.
(8)
Torque for bolts holding bearing caps for main bearings:
a. Put engine oil on threads and washer face.
b. Tighten all bolts
to . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 0 ±
4 N•m (30 ±
3 lb. ft.)
c. Put a mark on each bolt and cap.
d. Tighten all bolts from mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 0 °
NOTE: Install bearing caps with the part number toward the front of the
engine. Be sure that the mark (number) on the bearing cap next to the
bolt hole is in agreement with the mark in the cylinder block.
1-239
