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(9) Remove the two cotter pins (33, fig. 68) and
loosen and retighten the flywheel mounting bolts
nuts (32) that secure each cap (17) to its
and recheck eccentricity. If eccentricity still
connecting rod; remove the caps and sleeve
exceeds 0.008 inch, replace the flywheel.
bearings (19). Take care that each connecting
(6) Check runout of the flywheel housing face by
rod cap is identified with the rod from which it
mounting a dial indicator on the flywheel with
was removed. Do not interchange rods and
the indicator tip against the inside of the face of
bearings.
the flywheel housing (fig. 64). Rotate the
Note.
d, below, contains instructions for main
crankshaft through one revolution.
Hold
bearing replacement without removing the crankshaft.
pressure against the flywheel to eliminate end
(10) Remove the 10 screws (30) and washers (29)
play. If runout exceeds 0. 008 inch, clean the
that secure the five bearing caps (28, 34, and
mounting surfaces of the flywheel housing and
41) to the block; remove the caps.
the block. Recheck flywheel. housing runout.
(11) Remove the two screws (35 and 38) and
If the runout is still not within limits, replace the
washers (36 and 39) that secure the bearing cap
flywheel housing.
(40) to the block; remove the cap.
(7) Check eccentricity of the flywheel housing bore
(12) Remove the four screws (30) and washers (29)
by mounting a dial indicator (fig. 71) on the
that secure the bearing cap (43) to the block;
flywheel with the indicator tip against the inside
remove the cap.
of the flange of the flywheel housing. Rotate
(13) Remove the sleeve bearings (5 through 9) from
the engine through one revolution. If housing
the bearing caps.
bore eccentricity exceeds 0. 008 inch, loosen
(14) Lift the crankshaft (20) from the block.
the flywheel housing mounting bolts and tap the
(15) Remove the sleeve bearings (5 through 9) from
housing into its proper position with a soft
the block.
hammer. Tighten the bolts and recheck housing
(16) Remove the oil guard (69, fig. 56) from the
bore eccentricity. If the housing can not be
block. Remove the seal (68) from the guard.
brought into true position, replace the housing.
(17) Remove the valves (para 116a).
(8) Install the engine (para 114c)
(18) Remove the valve tappet assemblies (9, 10,
and 11, fig. 59). Note the location of each
121. Crankshaft, Crankshaft Bearings, and Camshaft
Figure 72. Checking gear clearance.
a. Removal.
(1) Remove the engine (para 114b).
(2) Remove the cylinder head (para 115a).
(3) Remove the oil pan and filler blocks (para
(4) Remove the oil pump (para 118a).
(5) Remove the flywheel and flywheel housing
(6) Remove the starting jaw (27, fig. 62) and
washer (26) that secure the pulley (24) to the
crankshaft (20).
Pull the pulley from the
crankshaft. Remove the key (25) from the
crankshaft.
(7) Remove the screws (37, 42, 44, and 46,, fig.
56) lockwashers (41, 43, and'45), nut (40), and
lockwasher (39) that secure the front end cover
(36) to the block (28); remove the front end
cover and gasket (35).
(8) Press the seal (47) from the front end cover.
Figure 72. Checking gear clearance
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