Crankshaft (33, 44, 49, 66 and 74 engines)
• 4th undersize 1.50 mm • 3.705 - 3.715 mm
Main bearing clearance 0.050 - 0.127 mm
Length of thrust bearing journal (journal nearest to
flywheel):
• standard (fixed thrust plates) • 45.000 - 45.080 mm
• 1st oversize (one std and one 0.1 mm overthick
separate thrust plate)
• 45.100 - 45.180 mm
• 2nd oversize (one std and one 0.2 mm overthick
separate thrust plate)
• 45.200 - 45.280 mm
• 3rd oversize (one 0.1 mm + one 0.2 mm
overthick separate thrust plate)
• 45.300 - 45.380 mm
• 4th oversize (two 0.2 mm overthick separate
thrust plates)
• 45.400 - 45.480 mm
Other crankshaft journals cannot be ground longer.
Crankshaft end float 0.100 - 0.380 mm
Max. permissible ovality and other deformity of
crankpins or journals
0.03 mm
Crankshaft unbalance 1.0 Ncm max.
Balancing unit ring gear location, diameter (44 and
49 engines)
150.220 - 150.260 mm
Balancing unit ring gear I.D. (44 and 49 engines) 150.000 - 150.040 mm
Number of teeth on trigger wheel 60-2
Crankshaft (84 engine)
Crank pin diameter:
• standard • 72.981 - 73.000 mm
• 1st undersize 0.25 mm • 72.731 - 72.750 mm
• 2nd undersize 0.50 mm • 72.481 - 72.500 mm
• 3rd undersize 1.00 mm • 71.981 - 72.000 mm
• 4th undersize 1.50 mm • 71.481 - 71.500 mm
Crank pin length 40.000 - 40.160 mm
2. Specifications
4th Generation Engines 2-9
8370 79492
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