Technical Data
0---9
Balancing unit (420---engines)
Tooth backlash:
--- crankshaft ring gear---balancer weight gear wheel
0,1...0,3 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
--- between the balancer weights gear wheels
0,05...0,250 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Balancing weights end float
0,1...0,5 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shaft diameter at bearing surfaces
36,000...36,016 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bearing bushing inner diameter (fitted)
36,050...36,075 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diameter of holes in body for shafts, rear end
36,058...36,083 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diameter of holes in body for shafts, front end
35,958...35,983 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shim thickness, cylinder block---balancer unit
0,2 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing gears
Tooth backlash:
Crankshaft---idler gear
0,05...0,25 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Idler gear---camshaft gear
0,05...0,25 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Idler gear---fuel injection pump gear
0,05...0,25 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Max. permissible side wobble of gears
0,05 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Idler gear shaft, diameter
54,951...54,970 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inner diameter of idler gear bushing (fitted)
55,000...55,030 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inner diameter of Idler gear hole
60,000...60,030 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Camshaft gear hole diameter
32,000...32,025 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Camshaft end diameter
32,043...32,059 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing marks:
Timing marks on gears are in alignment when the 1st cylinder piston is at its top dead centre
between compression and power strokes.
On crankshaft gear
2 dots on tooth
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On idler gear:
--- against crankshaft gear mark
0 on tooth
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
--- against camshaft gear mark
1 dot on tooth
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
--- against fuel injection pump gear mark
1 dot on notch
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On camshaft gear
1 dot on notch
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On injection pump gear
1 dot on tooth
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting rod
Inside diameter of piston pin bush (with bush pressed into connecting rod)
40,025...40,040 mm
. . . . . . . . . .
Outside diameter of piston pin bush
44,080...44,120 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside diameter of piston pin bush (oversize 8353 28326)
44,580...44,620 mm
. . . . . . . . . . . . . . . . . . . . . . . .
Interference fit: connecting rod small end bushing---connecting rod
0,057...0,120 mm
. . . . . . . . . . . . . . . .
Connecting rod small end bore
44,000...44,025 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting rod small end bore (oversize bush)
44,500...44,525 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting rod big end bore
71,730...71,749 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Big end bearing shell thickness:
--- standard
1,835...1,842 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
--- 1st undersize 0,25 mm
1,960...1,967 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
--- 2nd undersize 0,50 mm
2,085...2,092 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
--- 3rd undersize 1,00 mm
2,335...2,342 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
--- 4th undersize 1,50 mm
2,585...2,592 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Big---end bearing clearance
0,046...0,098 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
End float (side clearance) at big---end on crankshaft
0,200...0,410 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Piston pin bushing location perpendicular to longitudinal axis of connecting
rod to be within
0,15:100
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Piston pin bushing location and big---end bearing location to be parallel to within
0,05:100
. . . . .
Weight marking (letter) at lower end.
Max. permissible weight difference between connecting rods in the same engine
20 g
. . . . .
Position of connecting rod; weight marking at valve mechanism side
(away from the combustion chamber in the piston)