Table 7-3. Cylinder Stud Installation
A - Diameter
B - Height
C - Oil supply
D - Cover
E - Lift
(10) Check the main bearing bores as follows:
standard size main bearing shells
installed and lubricated, and the
(a) Install the main bearing caps in their
bearing caps properly tightened, can
original positions. Draw the bolts up
be rotated freely by hand, the bores
snugly, and rap the bearing cap
are properly aligned.
If a main
sharply with a soft hammer to
bearing bore is out of alignment, the
assure proper seating. Tighten the
block must be line-bored or scraped.
bolts to the torques given in table
After boring, all bores must be within
the 3.0665 to 3.0670-inch (77.889 to
77.902 mm) limits.
(11) Check the camshaft bearing bores. The
internal diameter of bearing bores must be
It is imperative that the main bearing
2.1870 to 2.1889 inches (55.550 to 55.598
caps are reinstalled in their original
mm). If the bores do not fall within these
positions to maintain the main
limits, replace the cylinder block.
bearing bore alignment. The caps
are marked with the number of the
(12) Check the plugs in the vertical oil
cylinder in which they are used.
passages in the corners of the block to be
(b) Measure the main bearing bores.
sure they are flush with or below the top
The bearing bores must be 3.0665
surface of the block.
to 3.0670 inches (77.889 to 77.902
mm). If the bores do not fall within
(13) Check all of the machined accessory
these limits, discard the cylinder
mounting pads for flatness, nicks, and
burrs. Remove nicks and burrs with a fine
(c) Check the main bearing bores for
alignment. Misalignment may be
caused by a broken crankshaft,
(14) Check the remaining studs and dowel pins
excessive heat, or other severe
in the block for damaged threads,
If a crankshaft having
standard size journals, new