22
Model Code Page
21. Engine
205-- 555 210 4
1. 7. 1989
10. 1. 1992
Camshaft (355, 455, 555)
Bearing journal no. 1, diameter 49.905---49.930 mm....................................................
Bearing journal nos 2---4, diameter 49.885---49.910 mm.................................................
Bearing bores, diameter 50.000---50.025 mm..........................................................
Radial clearance no. 1 0.070---0.120 mm............................................................
Radial clearance nos 2---4 0.09---0.140 mm.........................................................
Tolerance, 1st bushing in block 0.023---0.072 mm....................................................
Camshaft end float (with 0.5 mm gasket between cylinderblock and timing gear
casing and between timing gearcasing and front cover) 0.450---1.550 mm................................
Cam height (distance between cam lobe top and opposite side) 41.44 mm........................
Camlift(lobetopheightabovethe“circle”) 7.44mm..........................................
Max. permissible figure for out---of---roundness 0.03 mm.......................................
Cylinder liners (205, 305, 405)
Height above block face 0.030---0.080 mm..........................................................
Max. height difference between cylinder liners under thesame cylinder head 0.020 mm..............
Cylinder liner I.D 100.015---100.037 mm.................................................................
Liner flange height, standard 8.03---8.05 mm......................................................
Liner flange height, 1st oversize, part no 8365 36828 8.08---8.10 mm..................................
Liner flange height, 2nd oversize, part no 8365 36829 8.13---8.15 mm.................................
Liner flange height, 3rd oversize, part no 8365 36830 8.23---8.25 mm..................................
Cylinder liner flange, outer diameter 121.90---122.00 mm................................................
Cylinder liners (355, 455, 555)
Height above block face 0.030---0.080 mm..........................................................
Max. height difference between cylinder liners under thesame cylinder head 0.020 mm..............
Cylinder liner I.D 108.000---108.022 mm.................................................................
Liner flange height, standard 9.03---9.05 mm......................................................
Liner flange height, 1st oversize, part no 8353 29829 9.08---9.10 mm..................................
Liner flange height, 2nd oversize, part no 8353 29830 9.13---9.15 mm.................................
Liner flange height, 3rd oversize, part no 8353 29831 9.23---9.25 mm..................................
Cylinder liner flange, outer diameter 131.700---131.800 mm................................................
Piston, piston rings and piston pin (205, 305, 405)
Minimum distance between piston and cylinder head, measured with a piece of lead
wire through the injector location hole 0.900---1.150 mm...............................................
Piston diameter:--- 26 mm from lower edge 99.873---99.887 mm..........................................
Piston pin hole, diameter 36.003---36.009 mm..........................................................
Piston pin diameter 35.995---36.000 mm..............................................................
Ring groove width:
--- groove 2.580---2.600 mm.......................................................................
--- groove 3.040---3.060 mm.......................................................................
--- groove 3 4.040---4.060 mm.....................................................................
Piston ring clearances in grooves:
--- upper compression ring, hard chromed 0.09---0.122 mm...........................................
--- 2nd compression ring 0.05---0.082 mm..........................................................
--- oil control ring 0.05---0.082 mm.................................................................
--- maximum wear limit 0.15 mm............................................................
Piston ring widths:
--- ri n g 1 2.478---2.490 mm........................................................................
--- ri n g 2 . 2.978---2.990 mm.......................................................................
--- ri n g 3.978---3.990 mm..........................................................................
Piston ring gap:
--- compression rings 0.4---0.6 mm.............................................................
--- oil control ring 0.25---0.55 mm.................................................................
--- maximum wear limit 1.0 mm............................................................
Max permissible weight difference between pistons 25 g...................................
Heat piston to 100
_C before fitting piston pin.
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