Fitting the 24v Cosworth engine into a 2.9 XR4X4

The Oil Pump

Once all this work is complete its time to consider the oil pump, check it (as per manual) before assembling (the oil pressure relies on this valve). Place an appropriate size washer under the spring of 1/16 inch thickness (not too thick) then assemble (this will increases the oil pressure slightly, mine runs 35 psi tickover/60 psi at 4000 rpm and this is OK)

Now remove the oil pickup pipe and baffle plate from your old engine and fit to the 24v engine before fitting the sump. All that remains is to fit the drain pipes from the cam box to your modified sump. Before fitting the 24v engine carefully remove the old EFI loom(start from the engine multi plug and work back to the bulk head, then from inside the car pass the ECU plug through the bung). Now your 24v engine is ready to fit.

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