TM 9-2320-289-34
3-19.
PISTON,
CONNECTING ROD,
AND CONNECTING ROD BEARING
INSTALLATION (Con’t).
NOTE
Ensure
that
connecting
rod
bearings and crankshaft (1) journal
are clean of oil before performing
step 5.
5 .
Cut a piece of gaging plastic (8) the
length of connecting rod bearing.
Install gaging plastic parallel to
crankshaft (1) in middle of lower
connecting rod bearing.
6 .
Install connecting rod bearing in
connecting rod cap (4), Install
connecting rod cap with 2 nuts (3),
Evenly tighten nuts to 45-50 lb.-ft,
(61-68 N.m).
NOTE
Scale on envelope (9) of gaging
plastic (8) should be used to
measure clearance.
7. Remove 2 nuts (3) and connecting
rod bearing cap (4) . Measure
flattened gaging plastic (10) at widest
point to determine connecting rod
bearing clearance. Clearance should
be
0.0017-0.0039 in.
(0.04318-
0.09906 mm).
Discard
gaging
plastic,
8. If clearance in step 7 is not correct,
use
undersized
connecting
rod
bearing and repeat steps 5-7. If
clearance is still not correct, replace
crankshaft (1). (See paragraph 3-15)
TA50672
3-63
