CRANKSHAFT AND GEAR
Remove the bearing caps and measure
the thickness of the wire. The main
bearing clearance must be .002 to .005 in.
(0.05 to 0.13 mm). The maximum
permissible clearance is .006 in. (0. 15
Put clean engine oil on the bolt threads,
washer faces and lower halves of the
main bearings. Put the bearing caps in
position and install the bolts. Tighten the
bolts in number sequence as follows:
Tighten bolts I through 10 to a
torque of 30 + 3 lb. ft. (40 + 4 N.m).
Put a mark on each bolt head and
bearing cap. Tighten bolts 1
through 10 120° + 5° more.
Install indicator group (A) and check the
end play of the crankshaft. The end play
is controlled by the thrust bearing on No.
4 main bearing. The end play with new
bearings must be .006 + .003 in. (0.15 +
0.08 mm). The maximum permissible
end play with used bearings is .012 in. (
install timing gear cover and oil
install valve lifters
install flywheel housing