TM 5-3805-280-24-2
Cylinder Block, Liners, Pistons and Rods
10
4. Measure assembled rod bearing ID.
31
Assembled Rod Bearing--Specification
ID ............................................................................... 77.876--77.927 mm
(3.0659--3.0679 in.)
5. Subtract crankshaft journal OD from rod bearing ID to
determine oil clearance. Replace bearings if oil
clearance is out of specification.
Connecting Rod Bearing-to-Journal (New Parts)--Specification
Oil Clearance................................................................. 0.050--0.127 mm
(0.0020--0.0050 in.)
Wear Limit .............................................................. 0.152 mm (0.0600 in.)
RG,10,DT7409 1912NOV972/2
INSPECT AND MEASURE CONNECTING ROD
BEARINGS (ROD AND CRANKSHAFT IN
ENGINE)
IMPORTANT: Use hand wrenches. Pneumatic
wrenches may cause thread damage.
NOTE: Use PLASTIGAGE as directed by manufacturer.
PLASTIGAGE will determine oil clearance, but
will not indicate condition of either surface.
1. Remove rod cap. Place a piece of PLASTIGAGE in
center of bearing. Install rod cap using OLD cap
screws. Tighten cap screws to 58 Nm (43 lb-ft).
Tighten cap screw an additional 90--100. (See
TORQUE-TURN CONNECTING ROD CAP SCREWS
later in this group.)
2. Remove rod cap. Compare width of PLASTIGAGE
with scale provided on package to determine
clearance. Replace bearings if oil clearance is out of
specification.
PLASTIGAGE is a registered trademark of the DANA Corp.
DPSG,OUO1004,52
1916APR981/1
13-144
