Maximum permissible ovality and other deformity
of crank pins or journals
0.03 mm
Crankshaft unbalance 1.0 Ncm max.
Number of teeth on trigger wheel 60-2
Crankshaft (98 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
Crank pin length 40.000 - 40.160 mm
Main bearing journal diameter:
• standard • 97.985 - 98.020 mm
• 1st undersize 0.25 mm • 97.735 - 98.770 mm
• 2nd undersize 0.50 mm • 97.485 - 98.520 mm
Main bearing housing diameter (in cylinder block) 104.000 - 104.025 mm
Main bearing shell thickness:
• standard • 2.955 - 2.965 mm
• 1st undersize 0.25 mm • 3.080 - 3.090 mm
• 2nd undersize 0.50 mm • 3.205 - 3.215 mm
Main bearing clearance 0.050 - 0.130 mm
Length of thrust bearing journal (journal nearest to
flywheel):
• standard (2 standard thrust plates) • 45.000 - 45.080 mm
• 1st oversize (one std and one 0.1 mm overthick
thrust plate)
• 45.100 - 45.180 mm
• 2nd oversize (one std and one 0.2 mm overthick
thrust plate)
• 45.200 - 45.280 mm
• 3rd oversize (one 0.1 mm and one 0.2 mm
overthick thrust plate)
• 45.300 - 45.380 mm
• 4th oversize (two 0.2 mm overthick thrust
plates)
• 45.400 - 45.480 mm
2. Specifications
4th Generation Engines 2-11
8370 79492
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