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The Series 2 & 3 Land Rover 2.25 litre Petrol Engine (3 bearing)

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This engine provided the most significant technical change between the Series 1 Land Rover and the, then newly introduced, Series 2 Land Rovers. It provided almost 50% more power than the 2 litre petrol engine which was normally fitted to a Series 1 Land Rover at the time. The engine was developed from the existing 2 litre overhead valve diesel engine used extensively in Series I Land Rovers.
The engine was based on the already existing 2 litre diesel unit, fitted to the Series 1 Land Rover , so as to increase the economic returns on commonisation of the tooling required in its manufacture. The Land Rover 2.25 litre petrol engine has a wider bore but the same stroke as it's earlier diesel 2 litre counterpart. The larger bore was achieved by removing the cylinder liners.

The 2.25 litre petrol engine continued to power a variety of Series II, Series IIa and Series III Land Rovers coming off the production lines for the twenty two years from 1958 to 1980. It was, incidently, also fitted to the Rover 80 saloon car from 1959 to 1962.

The engine was fitted to the Series II 88in model from 1958 to 1961 using a Solex carburettor. It was also fitted to the Land Rover Forward-Control (109in) from 1962 using a Solex carburettor but it proved under-powered for the extra weight of the Forward-Control's chassis and so it was replaced, in 1966, with the more powerful 6 cylinder petrol engine.

A distinguishing feature of the 3 bearing 2.25 litre engine is that the block is painted Light Admiralty Grey.

The Series Land Rover 2.25 litre petrol engine has a reputation of being able to survive long term and with rough usage, though with low power output and poor fuel economy. In 1980 the engine was re-designed with 5 bearings, in anticipation of even more demands being made upon the Series 3 Land Rover.

Land Rover 2.25 litre Petrol Engine specs:

swept engine volume: 2286 cc
cylinder bore: 90.47mm
piston stroke: 88.9mm
compression ratio: 7.0:1 (8.0:1 from 1969)
carburettor: Solex 40PA to 1967 then Zenith 36IV
power: 77bhp at 4250 rpm
torque: 124ft lb at 2500rpm

Series 2.25litre engine


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