25
Model Code Page
21. Engine
1. 11. 2000
95--115
X100--X120
210 3
Specifications (see also page 210/17)
Tractor 95 95 (41/00---) 105 115
Designation 420 DW 420DW 420 DS 420 DWI
Turbocharger yes yes yes yes (+interc..)
No of cylinders 4 4 4 4
Displacement (litres) 4,4 4,4 4,4 4,4
Cyl. bore (mm) 108 108 108 108
Stroke (mm) 1120 1120 120 120
Compr. ratio 16,5:1 16,5:1 16,5:1 16,5:1
Output (kW/r/min DIN) 70/2225 73,5/2200 77/2225 85/2225
Torque (Nm/r/min DIN) 390/1550 415/1400 405/1550 440/1550
Moment rise % 31 30 22 21
Low idling (r/min) 750 750 850 850
Compr. press
1
) (bar) 24 24 24 24
Max. no--load revs (r/min) 2425 2400 2425 2425
Tractor X100 X110 X120
Designation 420DWRE 420DWRE 420 DWRIE
Turbocharger yes yes yes, interc.
Number of cylinders 4 4 4
Displacement (litres) 4,4 4,4 4,4
Cyl. bore (mm) 108 108 108
Stroke (mm) 120 120 120
Compr. ratio 16,5:1 16,5:1 16,5:1
Output (kW/r/min DIN) 73,5/2200 81/2200 88/2200
Torque (Nm/r/min DIN) 430/1400 460/1400 490/1400
Moment rise % 35 31 28
Low idling (r/min) 850 850 850
Compr. press.
1
) (bar) 24 24 24
Max. no load revs (r/min) 2400 2400 2400
1
) Minimum value at operating temperature and starting revs. Max permitted difference between cylinders 3,0 bar.
Valves, rockers and tappets
With a valve clearance of 1,0 mm:
--- inlet v a l v e op ens 0˚±2˚ B.T.D.C...............................................................
--- inlet v a l v e close s 16˚±2˚ A.B.D.C..............................................................
--- exhaust valve opens 39˚±2˚ B.B.D.C...........................................................
--- exhaust valve closes 1˚±2˚ A.T.D.C...........................................................
V alve clearance cold and hot:
--- inlet v a l v e 0,35 mm....................................................................
--- exhaust valve 0,35 mm.................................................................
Angle of valve seat in cylinder head:
--- inlet v a l v e 35˚+20’....................................................................
--- exhaust valve 45˚+20’.................................................................
Width of valve seat in cylinder head:
--- inlet v a l v e 2,9...3,7 mm....................................................................
--- exhaust valve 1,3...2,3 mm.................................................................
Angle of valve face:
--- inlet v a l v e 35˚---20’....................................................................
--- exhaust valve 45˚---20’.................................................................
Outside diameter of valve head:
--- inlet v a l v e 48 mm....................................................................
--- exhaust valve 41 mm.................................................................
Max valve movement:
--- inlet v a l v e 10,9 mm....................................................................
--- exhaust valve 12,1 mm.................................................................
Inlet valve stem diameter 8,960...8,975 mm..........................................................
Exhaust valve stem diameter 8,925...8,940 mm......................................................
Inlet valve stem clearance 0,025...0,055 mm.........................................................
--- R e j ect l i m i t 0,30 mm...................................................................
Exhaust valve stem clearance 0,060...0,090 mm......................................................
--- R e j ect l i m i t 0,35 mm...................................................................
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