30
Model Code Page
21. Engine
1. 1. 1994
6000--8750
210 8
1. 9. 1992
Lubricating system
Oil pressur e at normal running temperature:
--- at idling speed (min.) 100 kPa (1,0 kp/cm
2
)...........................................................
--- at running speed 250---400 kP a (2,5---4,0 kp/cm
2
)..............................................................
Free length of oil pressure valve spring 80 mm..............................................
Spring pressure when valve spring is compressed to a length of 52 mm 54+5 N (5,4+0,5 kp)..................
Diameter of oil pressure valve plunger 19,602...19,635 mm..............................................
Diameter of oil pressure valve cylinder 19,700...19,752 mm..............................................
Oil filter by---pass valve opens at a pressure difference of 2±0,5 kp/cm
2
..............................
Oil pump (320, 420 engines)
Backlash between gears when crankshaft lies firmly against the lower side o f main bearings:
--- crankshaft gear---lubricating oi l pump gear 0,05...0,25 mm........................................
--- between the pump gears 0,16...0,26 mm.......................................................
Diameter of drive shafts:
--- at bearings for body and cover 17,966...17,984 mm..................................................
--- at gear wheel pressed on shaft 18,099...18,109 mm..................................................
Diameter of shaft holes on body and cover 18,000...18,018 mm..........................................
Diameter of gear wheel holes 18,060...18,078 mm......................................................
Drive shaft gear (press fit), distance between side gear (thread side) and first shoulder 14,80...15,20 mm.....
Fixed shaft, diameter 18,028...18,039 mm.............................................................
Protrusion of fixed shaft end below pump body face 0,5...1,0 mm...................................
Thickness of cover gasket 0,06...0,08 mm.........................................................
Outside diameter of gear 43,486...43,525 mm..........................................................
Housing diameter 43,650...43,750 mm................................................................
Thickness o f gears 24,000...24,027 mm...............................................................
End play of gears 0,03...0,11 mm................................................................
Depth of housing 24,000...24,043 mm................................................................
Number of teeth on drive gear (320 engines) 51 pcs.........................................
Number of teeth on drive gear (420 engines) 46 pcs.........................................
Oil pump (620, 634 engines)
Backlash between gears when crankshaft lies firmly against the lower side o f main bearings:
--- crankshaft gear---lubricating oi l pump gear 0,05...0,25 mm........................................
--- between the pump gears 0,16...0,26 mm.......................................................
Diameter of drive shafts
--- at bearings for body and cover 17,966...17,984 mm..................................................
--- at gear wheel pressed on shaft 18,099...18,109 mm..................................................
Diameter of drive shaft bearing hole on body and cover 18,000...18,018 mm................................
Hole diameter of gear pressed on drive shaft 18,060...18,078 mm.........................................
Drive shaft gear (press fit), distance between side gear (t hread side) and first shoulder 16,5±0,2 mm.....
Diameter of fixed shaft at gear wheel 17,966...17,984 mm................................................
Inner diameter of bearing for gear wheel which rotates on fixed shaft 18,000...18,018 mm....................
Fixed shaft in pump body, diameter 20,035...20,048 mm.................................................
Protrusion of fixed shaft end below pump body face 0,5+0,5 mm...................................
Thickness of cover gasket 0,06...0,08 mm.........................................................
Outer diameter of gear wheels (620 engines) 43,486...43,525 mm.........................................
Outer diameter of gear wheels (634 engines) 55,824...55,870 mm.........................................
Housing diameter (620 engines) 43,650...43,750 mm...................................................
Housing diameter (634 engines) 56,000...56,120 mm...................................................
Thickness o f gears 32,000...32,027 mm...............................................................
End play of gears 0,03...0,11 mm................................................................
Depth of housing 32,000...32,043 mm................................................................
Number of teeth on drive gears 46 pcs....................................................
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