Fiat 650-750 S
The mid-range 650 and 750 models were somewhat more old-fashioned than the rest of the range introduced in 1968. They were equipped with a 7+2-speed non-synchronized shuttle-gear transmission. On the 750, a mechanical Ampli Couple quick-shift unit was available as an optional extra. The twin clutch plates measured 12″ and 11″ in diameter. Contrary to other Fiats, there was no power take-off. The engines came from the OM truck works that Fiat had acquired: the 650 used a 3-cylinder 3.7-litre unit, and the 750 a 4-cylinder 4.6-litre. They ran at lower revs and delivered more attractive torque figures than the other Fiats.
In spring 1971 the 650 was replaced by the 650 Special, which added 70 horsepower and featured a reworked gearbox layout for easier shifting. Power steering became standard. The 750 was likewise replaced by the 750 Special (80 hp). The Special models remained in production until 1975, when the 780 and 880 were introduced.
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| Model | Fiat 650 | Fiat 650 S | Fiat 750 | Fiat 750 S |
|---|---|---|---|---|
| Manufacturer name | Fiat | Fiat | Fiat | Fiat |
| Imported to Finland | Yes | Yes | Yes | Yes |
| Years | 1969-71 | 1971-74 | 1969-71 | 1971-75 |
| First year sold | 1969 | 1971 | 1969 | 1971 |
| Last year sold | 1971 | 1974 | 1971 | 1975 |
| Engine model | OM CN3 | OM CN3 | OM CO3/130 | OM CO3/130 |
| Cyl/Turbo/Intercooler | 3 | 3 | 4 | 4 |
| Displacement | 3701 cm³ | 3701 cm³ | 4562 cm³ | 4562 cm³ |
| Bore x stroke | 110×130 mm | 110×130 mm | 110×120 mm | 110×120 mm |
| Rated power hp/rpm DIN | 65/2200 | 70/2200 | 75/2100 | 80/2100 |
| Rated power | 65 | 70 | 75 | 80 |
| Rated speed | 2200 | 2200 | 2100 | 2100 |
| Torque Nm/rpm DIN | 239/1300 | 275/1300 | 279/1300 | 313/1300 |
| Gears | 7+2 | 7+2 | 7+2 | 7+2 |
| Powershift gears | - | - | opt. | opt. |
| Speeds in km/h | 2,9-29,2 | 2,8-29,0 | 2,9-30,1 | 2,9-30,1 |
| Max. speed | DT 2,4-24,5 km/h | DT 2,4-24,5 km/h | DT 2,5-26,9 km/h | DT 2,5-26,9 km/h |
| Hydr. flow l/min | 23.5 l/min | - | 23.5 l/min | 27.5 l/min |
| Hydraulic pressure | 150 bar | - | 150 bar | 150 bar |
| Lift controls | mech. | mech. | mech. | mech. |
| Lift capacity | 2100 kg | 2100 kg | 2100 kg | 2100 kg |
| PTO speeds | 540 | 540 | 540 | 540 |
| Brakes | disc brakes | disc brakes | disc brakes | disc brakes |
| Steering | mech. | power | power | power |
| Turning circle m 2WD | - | - | 7,3 jarruilla | 8.5 |
| Turning circle m 4WD | 7,1 jarrulla | - | 8,1 jarrulla | 11.2 |
| Front tyres 2WD | 7,50-18 | 7,50-18 | 7,50-20 | 7,50-20 |
| Front tyres 4WD | 9.50-24 | 9.50-24 | 9.50-24 | 12.4-24 |
| Rear tyres 2WD | 13,6-36 | 13,6-36 | 13,6-38 | 13,6-38 |
| Rear tyres 4WD | 13.6-32 | 13.6-32 | 16.9-30 | 16.9-34 |
| Weight 2WD | 2890 kg | 2890 kg | 3020 kg | 3300 kg |
| Weight 4WD | 3300 kg | 3300 kg | 3390 kg | 3720 kg |
| Height with cab | - | - | - | 241 cm |
| Length (2WD/4WD) | 336 cm | 336 cm | 376/383 cm | 356 cm |
| Wheelbase (2WD/4WD) | 222/224 cm | 222/224 cm | 235/237 cm | 244/244 cm |
| Fuel tank | - | - | 78 l | 78 l |
| Cab noise level | - | 92 dB | 95 dB | 93 dB |
| Creeper gear | opt. | opt. | opt. | opt. |
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