Oil pump (66 and 74 engines)
Thickness of gears 32.000 - 32.027 mm
End play of gears 0.03 - 0.11 mm
Depth of housing 32.000 - 32.043 mm
Oil pump (84 and 98 engines)
Backlash between gears when crankshaft lies firmly
against the lower side of the main bearings:
• crankshaft gear-lubricating oil pump gear
0.05 - 0.25 mm
• between the pump gears
0.16 - 0.26 mm
Diameter of drive shaft at bearings for body and
cover
17.966 - 17.984 mm
Diameter of drive shaft bearing hole on body and
cover
18.000 - 18.018 mm
Inner diameter of bearing for gear wheel which
rotates on fixed shaft
18.000 - 18.018 mm
Diameter of fixed shaft at gear wheel 17.966 - 17.984 mm
Fixed shaft in pump body, diameter 20.035 - 20.048 mm
Protrusion of fixed shaft end below pump body face 0.5 mm
Thickness of cover gasket 0.06 - 0.08 mm
Outer diameter of gear wheels 55.824 - 55.870 mm
Housing diameter 56.000 - 56.120 mm
Thickness of gears 38.000 - 38.027 mm
End play of gears 0.03 - 0.12 mm
Depth of housing 38.000 - 38.043 mm
2.1.15 Thermostat
Type Opening begins at Fully open at Max. stroke Order number
ø67 mm / 83°C 83°±2°C 95°C 8.0 mm 8366 66334
ø54 mm / 79°C 79°±2°C 94°C 7.5 mm 8360 15156
ø67 mm / 83°C 83°±2°C 95°C 8.0 mm 8363 31590
2. Specifications
2-18 4th Generation Engines
8370 79492
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