TM 5-3805-281-24-2
Crankshaft, Main Bearings, and Flywheel
7. Thoroughly clean the crankshaft and oil passages
6. When finished grinding, inspect the crankshaft for
with solvent. Dry with compressed air.
cracks with the Fluorescent Magnetic Particle
method, or similar method. De-magnetize
crankshaft after inspection.
RG,RG34710,1175
1923OCT972/2
CRANKSHAFT GRINDING SPECIFICATIONS
Item
Specification
Engine Stroke ..............................................................................................................
128.5 mm (5.059 in.)
Main and Rod Journal Surface Finish ........................................................................
Lap 0.20 Um (8 AA)
Thrust Journal Surface Finish .....................................................................................
Lap 0.40 Um (16 AA)
Rod Journal (Undercut) Fillet Radius ..........................................................................
4.10--4.37 mm (0.158--0.172 in.
Main Journal (Tangential) Fillet Radius ......................................................................
3.94--4.44 mm (0.155--.0175 in.)
Thrust Journal (Tangential) Fillet Radius ....................................................................
3.56--4.06 mm (0.140--0.160 in.)
Thrust Journal Width ...................................................................................................
44.387--44.487 mm (1.7475--1.7515 in.)
Bearing Sizes Available
Crankshaft Main Journal O.D.
Crankshaft Rod Journal O.D.
Standard
95.201--95.227 mm (3.7480--3.7491 in.)
76.149--76.175 mm (2.9980--2.9990 in.)
0.292 mm (0.0115 in.)
94.909--94.935 mm
75.857--75.883 mm
Undersize
(3.73666--3.7376 in.)
(2.9865--2.9875 in.)
0.552 mm (0.0217 in.)
94.649--94.675 mm
Undersizea
(3.7263--3.7274 in.)
a
Available for main journals only.
RG,RG34710,1176
1923OCT971/1
