Thanks for your reply Prometeus, - so far I have not fitted anything to the engine, I have just bought the van and it is in need of some work as it is I was thinking of making the WI part of the refurbishment.
I have the pump I used on the petrol engine, an all plastic, low pressure fuel lift pump.
On the previous instalation the pump fed a jet made from a peice of copper capilary tube fed down into the inlet manifold below the carburettor. The flow was controled by a needle valve linked to the throttle linkage, set to start flowing at 1/3 throttle.
The transit has an exhaust recirculation system linked to throttle position and maniold vacuum. I was thinking of using this mechanism to control the water flow.
I realise the manifold vacuum will be much lower than on the petrol engine but was thinking of using a small venturi to help atomise the water jet, and so overcome the lack of pressure on my delivery pump.
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