Ford I4 DOHC engine
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The Ford I4 DOHC engine was a 4-cylinder inline internal combustion engine produced by the Ford Motor Company from 1989 right into the 1990's. It was used in the Ford Sierra, Ford Scorpio and more. It was designed to replace the 2.0L Ford Pinto engine which many people still prefer.
The original 8 valve version was produced from 1989 onwards with a capacity of 2.0 liters and was placed into the Ford Sierra and Ford Scorpio (the CVH engine was used for the 1.6 and 1.8 liter models to replace the Pinto). It had 3 different variations.
Then later on a 16 valve version was available in the Ford Scorpio, Ford Galaxy and more in 2.0 and 2.3 capacities. These produced more power due to having more valves.
Contents |
[edit] 8v engine Specifications
- Two valves per cylinder with hydraulic valve lifters
- Twin camshafts driving by a timing chain
- Stroke and bore were both 86 mm
- Compression was 10.3:1
- Five main crankshaft bearings
[edit] N8A
- Carbureted
- Power: 107 hp (80 kW) at 5600 RPM.
- Torque: 174 Nm at 3000 RPM.
- Redline: 6050 RPM
[edit] N9A
- Electronic fuel injection (Batched multi-point)
- Power: 123 hp (92 kW) at 5500 RPM.
- Torque: 174 Nm at 2500 RPM.
- Redline: 5950 RPM
[edit] N9C
- Electronic fuel injection (Batched multi-point)
- Catalytic converter
- Power: 118 hp (88 kW) at 5500 RPM
- Torque: 171 Nm at 2500 RPM.
- Redline: 5950 RPM
[edit] Gallery
 Cylinder head without cam drive or valve lifters |
 Close-up of cam profile and valve lifter |
 The camshafts unmounted from the engine |
 The engine block with the cylinder head removed |
 The cylinder head, seen from its bottom side |
 The cylinder head with camshafts |
[edit] See also
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