Ford Cologne V6 engine

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The Ford Cologne V6, also known as the Ford Taunus V6, was a 60° cast iron block V6 engine built by the Ford Motor Company in Cologne, Germany, hence the name. It was closely related to the Ford Taunus V4 engine, adding two cylinders and no longer requiring a balance shaft. Over the years, the Cologne V6 was available with engine displacements of 2.0, 2.3, 2.6, 2.8, 2.9, 3.1 and 4.0 litres. All except some racing derivative and later 4.0 litre engines were pushrod overhead valve engines, with a single camshaft between the banks. The Cologne V6 is still in production, and is scheduled to be replaced in 2007.

Originally, the Cologne V6 was installed in cars intended for Germany and continental Europe, while the British "Essex" V6 was used in cars for the British market. Later, the Cologne V6 largely replaced the Essex V6 even for British-market vehicles. These engines were also used in the United States, especially in compact trucks.

The Cologne engine is lighter and more powerful than the equivalent Essex V6, even though its maximum engine displacement is smaller. Low-down torque is lower, however.

The Cologne V6 was made to be very compatible in installation with the Taunus V4, having the same transmission bolt pattern, the same engine mounts, and in many versions, a cylinder head featuring "siamesed" exhaust passages, which reduced the three exhaust outlets down to two on each side. The latter feature was great for compatibility, but poor for performance. The 2.9 and 4.0 had three exhaust ports as in the photos, making them preferable.

The engine was available in both carburetted and fuel injected form.

Contents

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2.8

The first Cologne V6 displaced 2.8 L (93.03mm Bore, 68.5mm Stroke). The European version used a "siamesed" two-port exhaust manifold, identical to the one used on the V4. This was useful in that existing cars with the V4 engine could be upgraded with relative ease. Despite the siamesed design in the European version, performance was largely indifferent to the US version with a three-port head. The engines also shared a geared camshaft design. Output was rated at 90bhp for the US market and anywhere from 130 to 160bhp for the European market, depending on the model.

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2.6

The 2.6 L Cologne engine was available in two forms: a regular 2550 cc version (used in the Capri 2600 GT) and a special high-performance 2637 cc fuel injected version (used in the Capri RS 2600).

The regular engine had a bore of 90 mm and 66.8 mm stroke. A single double-barrel Solex 35 DDIST carburettor produced 125 PS (92 kW).

The RS engine had 2.2 mm longer stroke, 10.0:1 compression, a high-performance camshaft, and Kugelfischer mechanical fuel injection (like the BMW 2002Tii). Output was 150 PS (110 kW).

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2.9

The 2.9 L shares the same basic design as the 2.8 L model, bar a few subtle differences. The camshaft is chain-driven rather than gear driven and rotates in the opposite direction. The arrangement of the exhaust valves is different, eliminating the "Hot-Spot" that existed on the 2.8 L model. The cylinder heads also sport a more conventional three-port exhaust manifold. Output was rated at 130 hp (97 kW) for the US market and anywhere from 150 to 160 hp (112 to 119 kW) for the European Market.

Bore was 93 mm (3.7 in) and stroke was 72 mm (2.8 in) for a total displacement of 2.9 L (2935 cc/179 in³).

In Europe - this engine was commonly fitted with the Bosch L-Jetronic fuel injection system, married to Fords EEC-IV engine management. Because of this difference over the 2.8 L model, this version was a more popular candidate for after market modification (typically turbocharging) from such well known companies as Janspeed and Turbo Technics.

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2.9 Cosworth

A special DOHC version of the 2.9 was created by Cosworth Engineering in 1991. Although it shared the same block as the standard 2.9, power output was up to 195 PS (143 kW) and torque was boosted to 203 ft·lbf (275 N·m). This engine was used in the Ford Scorpio Cosworth 24V.

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4.0

The 4.0 version, although produced in Cologne like the others, was only fitted to American vehicles. The pushrod OHV engine was produced until 2000 and was used in the Ford Explorer and Ranger. Output was 160 hp (119 kW) and 225 ft·lbf (305 N·m).

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SOHC

A somewhat-related SOHC version was introduced for the 1997 Explorer alongside the pushrod. The SOHC version is the last Cologne engine still in production, though it will be phased out in 2007 in favor of the new Cyclone. It featured a variable length intake manifold and was good for 205 hp and 245 ft.lbf. Ford Power Products sells this engine as the SOHC-640.

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Other Cars using the Cologne V6

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References

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