Pry Crankshaft Forward; Tighten Cap; Pry Cap Backward; Oil Seal To Block Installation - Ford 1956 Truck Shop Manual

26
Chapter l-General Engine Overhaul, Inspection, and Repair
PRY FORWARD
It"
Fig. 35-Pry Crankshaft Forward-Typical
NOTE : Red marked bearing. increase clearance, blue
marked bearing' decrea&e clearance.
If the various
selective fit bearings do not bring the
clearance within desired limits, grind the crankshaft
journal and/or journals and install undersize bearings.
NOTE: Normally, main bearing journals wear evenly
and are not
out-o/~round.
However,
if
a bearing i.
being filled
10
an oul-o f-round journal, be sure
10
fil
the bearing to the maximum diameter of the journal.
If Ihe bearing i. filled
10
the
minimum
diameter with
minimum clearance, interference may re8uit, causing
an early failure. It i3 not recommended that bearings
'.
PRY BACKWARD
Fig. 36-Pry Cap Backward-Typical
Fig. 37-Tighren Cap-Typical
be filled to a crankshaft journal which is more than
O.OOl-inch out-of-round.
(3) THRUST BEA.RING A.LlGNMENT.
Install the
main bearing caps, except the thrust bearing cap, and
tighten the cap bolts to specifications. Install the thrust
bearing cap with the bolts finger-tight, then pry the
crankshaft forward to properly position the thrust
surface of the upper half of the bearing (fig. 35) . While
holding the crankshaft forward, pry the thrust bearing
cap to the rear (fig. 36). This will align the thrust sur-
~-
I I
Tool- T52T-670J-AJO (302
OR
332 CUBIC INCH ENGINE) 6638
Fig. 38-0il Seal to Block Installation -Typical