25
Model Code Page
21. Engine
205-- 555 210 6.1
1. 7. 1989
10. 1. 1992
Timing gears (205---555)
Tooth backlash:
--- Cr a n ks h a f t --- i d l e r g e a r 0 . 05 --- 0 . 2 5 m m..........................................................
--- I d l e r g e a r --- ca m sh a f t g e a r 0. 0 5 --- 0 . 25 m m.......................................................
--- Idler gear---fuel injection pump gear 0.05---0.25 mm..............................................
All timing gears, max. radial throw 0.05 mm..................................................
Idler gear shaft, diameter 54.951---54.970 mm..........................................................
Idler gear bushing I.D. (fitted) 55.000---55.030 mm......................................................
Timing gear markings:
When the timing gear markings are opposite each other the piston in the first
cylinder is at T.D.C. between the compression and power stroke.
On the crankshaft gear wheel 2 punch marks on teeth.......................................................
On the idler gear:
--- against the crankshaft gear 0 on a tooth......................................................
--- against the camshaft gear 1 punch mark on a tooth.......................................................
--- against the fuel injection pump 1 punch mark at a tooth gap..................................................
On the camshaft gear 1 punch mark at a tooth gap............................................................
On the fuel injection pump gear 1 punch mark on a tooth....................................................
Crankshaft must be rotated 6 turns before all gear markings fall into line again.
Lubrication (205---555)
Lubricating oil pressure at working temperature:
--- at low idling speed, minimum 150 kPa (1.5 kp/cm
@)....................................................
--- at rated speed 300---500 kPa (3---5 kp/cm
@)................................................................
Spring for oil relief valve, free length 80 mm................................................
Spring for oil relief valve, loading when 52 mm long 54+5 N (5.4+0.5 kp)...................................
Oil relief valve, diameter of valve cone 19.602---19.635 mm...............................................
Oil relief valve, diameter of hole in insert 19.700---19.752 mm.............................................
Oil filter by---pass valve opens at a pressure difference of. 20.5 bar..............................
Lubrication oil pump (205 ---555)
Tooth backlash when crankshaft is resting on the main bearings:
--- crankshaft gear---lubricating oil pump gear 0.05---0.25 mm........................................
--- between the pump gears 0.16---0.26 mm.......................................................
Drive shaft clearance in housing 0.016---0.052 mm....................................................
Holes in body and cover, diameter 18.000---18.018 mm..................................................
Gear wheel I.D 18.060---18.078 mm..................................................................
Gear clearance on fixed drive shaft 0.021---0.050 mm.................................................
Cl ea r a n ce o f f ix e d sh a f t e n d --- f a c e o f b o d y 0.5 --- 1 .0 m m...........................................
Gasket thickness 0.06---0.08 mm................................................................
Pump gear O.D 43.486---43.525 mm..................................................................
Gear clearance in body 0.125---0.264 mm...........................................................
Gear location in body, diameter 43.650---43.750 mm....................................................
Width of gear 18.000---18.027 mm...................................................................
Gear wheel end float 0.03---0.11 mm.............................................................
Oil pump body, depth 18.000---18.043 mm............................................................
Number of teeth on gear 41..........................................................
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