12
SC213 Diesel Engines
NOTE : The ring gaps given above are for when checking in the unworn portion of the cylinder bore. When
checking ring gaps in a worn bore. 0.003’’ (0.08 mm) should be added to these ring gaps for every 0.011 inch
(0.03 mm) increase in bore diameter
Gudgeon Pin
Type … Fully Floating
Outside dia. of gudgeon pin … 1.102 / 1.1025 inch (27.995 / 28.00 mm)
Fit in piston boss … Transition
Clearance fit in Small end Bush … 0.0011 / 0.0019 inch (0.03 / 0.05 mm)
Small End Bush
Type … ci Steel Backed. Lead Bronze Lined
Outside Dia … 1.220 inch (31.00 mm)
Length … 1.378 inch (35.00 mm)
Inside Dia after reaming … 1.151 / 1.155 inch (29.35 /29.35 mm)
Connecting Rod
Type … “H” Section
Big end Parent Bore Dia … 2.008 / 2.0086 inch (51.006 / 51.019 mm)
Small end Parent Bore Dia … 1.220 / 1.221 inch (31.00 / 31.25 mm)
Big end Width … 1.244 / 1.248 inch (31.60 / 31.70 mm)
Big end side clearance on Crankpin … 0.012 / 0.020 inch (0.3 / 0.5 mm)
Length between bore centers … 5.825 / 5.827 inch (147.975 / 148.025 mm)
NOTE : The numbered side of connecting rod and cap should be on the fuel injection pump side.
Connecting Rod Bearings
Type … Pre-finished. Steel Backed low carbon steel
AluminumTin / Silicon
Inside Dia. (Big end bearing) … 1.949 / 1.950 inch (49.53 / 49.52 mm)
Bearing Running Clearance … 0.0015 / 0.003 inch (0.04 / 0.079 mm)
Recommended sizes in service … 0.010” (0.25 mm); 0.020” (0.51 mm); 0.030” (0.76 mm)
Crankshaft
Material ... Chromium molybdenum alloy steel forging.
Statically balanced. Main journals and crank pins
are induction hardened.
Main Journal Dia. (Std.) … 2.282 / 2.283 inch (57.98 / 58.00 mm)
Crank pin Dia. (Std.) … 1.889 / 1.890 inch (47.98 / 48.00 mm)
Main Journal length - Nos.1 … 1.311 / 1.326 inch (33.30 / 33.70 mm)
Main Journal Length – No.2 … 1.338 / 1.341 inch (34.01 / 34.08 mm)
Main Journal Length – No.3 … 1.330 / 1.346 inch (33.80 / 34.20 mm)
Crankpin length … 1.260 / 1.264 inch (32.00 / 32.10 mm)
Main Journal fillet radii Nos. 1 … 0.098 / 0.118 inch (2.50 / 3.00 mm)
Main Journal fillet radious No. 2 and 3 … 0.098 / 0.118 inch (2.50 / 3.00 mm)
Crankpin fillet radii … 0.098 / 0.118 inch (2.50 / 3.00 mm)
Surface finish (all Pins and Journals) … 0.4 microns (Maximum)
Crankshaft end Float … 0.003 / 0.006 inch (0.07 / 0.15 mm)
Crankshaft rear end Seal … Lip Type
Regrind Under sizes. Main Journal and Crank Pins … 0.010” (0.25 mm) ;0.020” (0.51 mm) ;0.030” (0.76 mm)
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