TK 2.49 & TK 3.74 Diesel Engine Specifications (Rev 1/97)
11
Crankshaft and Crankshaft Bearings (continued)
Rod Bearing Inside Diameter
Standard
1.4178-1.4185 in. (36.013-36.029 mm) 1.4197 in. (36.060 mm)
Undersize
1.4080-1.4086 in. (35.763-35.779 mm) 1.4098 in. (35.810 mm)
Rod Bearing Clearance
.0013-.0023 in. (0.033-0.059 mm)
.0059 in .(0.150 mm)
End Play
.0035-.0107 in. (0.090-0.271 mm)
.0130 in .(0.330 mm)
Deflection
.0008 in. (0.020 mm)
Cylinder Block
Cylinder Inside Diameter
Standard
2.5984-2.5996 in. (66.000-66.030 mm) 2.6063 in. (66.200 mm)
1st Oversize
2.6083-2.6094 in. (66.250-66.280 mm) 2.6161 in. (66.450 mm)
2nd Oversize
2.6181-2.6193 in. (66.500-66.530 mm) 2.6260 in. (66,700 mm)
Cylinder Roundness
0-.0004 in. (0-0.010 mm)
.0012 in. (0.030 mm)
Deck Distortion
.002 in. (0.05 mm)
Cylinder Head
Distortion
0-.002 in. (0-0.05 mm)
.006 in. (0.15 mm)
Timing Gears
Timing Gear Lash
Crankshaft Gear to Idler Gear
.0016-.0047 in. (0.040-0.120 mm)
.0079 in. (0.200 mm)
Crankshaft Gear to Oil Pump Gear .0043-.0075 in. (0.110-0.190 mm)
.0079 in. (0.200 mm)
Idler Gear to Camshaft Gear
.0016-.0047 in. (0.040-0.120 mm)
.0079 in. (0.200 mm)
Idler Gear to Fuel Injection Pump
Gear
.0016-.0047 in. (0.040-0.120 mm)
.0079 in. (0.200 mm)
Idler Gear Bushing Inside Diameter
.7874-.7882 in. (20.000-20.021 mm)
.7906 in .(20.080 mm)
Idler Gear Shaft Outside Diameter
.7858-.7866 in. (19.959-19.980 mm)
.7846 in. (19.930 mm)
Idler Gear Shaft to Idler Gear Bushing
Clearance
.0008-.0024 in. (0.020-0.062 mm)
.0059 in. (0.150 mm)
Oil Pump
Type
Trocoid
Outer Rotor to Pump Body Clearance .0039-.0063 in. (0.100-0.160 mm)
.0098 in. (0.250 mm)
Inner Rotor Tip to Outer Rotor Lobe
Clearance
.0059 in. (0.150 mm)
Rotor Plate to Rotor Clearance
.0012-.0035 in. (0.030-0.090 mm)
.0051 in. (0.130 mm)
Rotor Shaft to Rotor Shaft Bore
Clearance
.0005-.0017 in. (0.013-0.043 mm)
.0079 in. (0.200 mm)
Pressure Control Valve Setting
42.7-56.9 psi (294-392 kPa)