TM 5-3825-225-14&P
1-31. CRANKSHAFT.
a.
Overall Length ........................................... ................................................ 21.125 in. (536.575 mm)
b.
Main Journal Diameter (No. 1 & No. 2) ........... ........ ............. 2.248-2.2485 in. (57.099-57.112 mm)
c.
Main Journal Diameter (No. 3) ...................................... ........ 2.2475-2.248 in. (57.087-57.099 mm)
d.
Main Journal Length (No. 1) ............................ ......................................... 1.40625 in. (35.719 mm)
e.
Main Journal Length (No. 2) .......................... ................ ......... 1.496-1.504 in. (37.998-38.202 mm)
f.
Main Journal Length (No. 3) ........................ ................ ........... 1.499-1.502 in. (38.075-38.151 mm)
g.
Main Journal Fillet Radii ............................. ............................. .. 0.125-0.141 in. (3.175-3.581 mm)
h.
Crankpin Diameter ..................................... ..................... ...... 1.9995-2.000 in. (50.787-50.800 mm)
i.
Crankpin Length ......................................... ...................... ... 1.1875-1.1895 in. (30.162-30.213 mm)
j.
Crankpin Fillet Radii .................................... ................... .... 0.15625-0.17187 in. (3.969-4.365 mm)
k.
Surface Finish (All Journals) ........................................................... 8-16 micro-in. (0.2-0.4 micron)
l.
Main Journal and Crankpin Regrind Undersizes ........... 0.010, 0.020, 0.030 in. (0.25, 0.51, 0.76 mm)
m. Oil Seal Helix Diameter ........................ ............... ........... 2.21075-2.21175 in. (56.153-56.178 mm)
n.
Oil Seal Helix Width ........................... .......................... ............... 0.050-0.080 in. (1.270-2.032 mm)
o.
Oil Seal Helix Depth .......................... ........................ .................. 0.004-0.008 in. (0.102-0.203 mm)
p.
Flange Diameter .................................................. ........... 3.9985-3.9995 in. (101.562-101.587 mm)
q.
Flange Width .............................................................................. .................. 0.500 in. (12.700 mm)
r.
Spigot Bearing Recess Depth ..................................... .................................. 0.875 in. (22.225 mm)
s.
Spigot Bearing Recess Bore ....................................... .................................. 1.250 in. (31.750 mm)
t.
Crankshaft End Float ................................. ................................ 0.002-0.015 in. (0.0508-0.381 mm)
1-32. CRANKSHAFT THRUST WASHERS.
a.
Type ...................................................... ...................................... Steel Backed, Lead Bronze Faced
b.
Position in Engine ................................................................................................ Rear Main Bearing
c.
Thickness (STD) ............................................................... ........... 0.089-0.091 in. (2.261-2.311 mm)
d.
Thickness (O/S) .......................................................... ............. 0.0965-0.1005 in. (2.451-2.553 mm)
e.
Outside Diameter ................................ ........................ ............ 3.245-3.255 in. (82.423-82.677 mm)
f.
Inside Diameter ............................... ........................... ........... 2.590-2.600 in. (65.786-66.040 mm)
1-33. MAIN BEARINGS.
a.
Type ................................... ............................ ....... Pre-finished, Steel Backed, Aluminum Tin Lined
b.
Shell Width ................................................................ .............. 1.245-1.255 in. (31.623-31.877 mm)
c.
Outside Diameter ............................... ......................................................... 2.3955 in. (60.846 mm)
d.
Inside Diameter ................................... ...................... .......... 2.2505-2.2515 in. (57.163-57.188 mm)
e.
Running Clearance (No. 1 & No. 2) ........ ................................. 0.002-0.0035 in. (0.051-0.089 mm)
f.
Running Clearance (No. 3) ...................................... ................. 0.0025-0.004 in. (0.064-0.102 mm)
g.
Steel Thickness (Maximum) .................. ............................. ..............................0.060 in. (1.524 mm)
h.
Aluminum Thickness ............................. ....................... .............0.012-0.01225 in. (0.305-0.311 mm)
1-8
