BMC marine diesel engines 2.25

[dobbo]

Diesel engines 2.25, what is the difference between the engine when it's in Land rover form and Boat form. Is there any reason one could not use a used boat engine in a Land rover?

[Reads90]

Diesel engines 2.25, what is the difference between the engine when it's in Land rover form and Boat form. Is there any reason one could not use a used boat engine in a Land rover?

Land Rover did in the range rover

[JDNSW]

I'm not familiar with the marine conversion, but it will be basically the same engine, probably with different accessories to some extent, and probably with different injection pump settings, I expect set to a lower maximum rpm as boat engines tend to spend a lot of time at full throttle. The exhaust manifold is probably water cooled, and it may have a different water pump.
There should be no reason why you couldn't use it with normal accessories fitted and appropriate adjustments.

John

[Reads90]

I have never know a land rover being used as a marine engine. But the VM Diesel in the Range Rover in the late eightys was an Itian Marine Diesel engine , but had huge problems with the head gasket going. And that was blamed on the fact that because it was a marine engine it did not get as much cooling as it did in a boat

[harlie]

Hi
I am not familiar with a marine version of the 2.25 – however my experience with automotive to marine diesel conversions has taught me this;
Ignoring engine mounts - for marine use there would be things like - a different alternator, Starter motor (spark suppression). Exhaust manifold should be a water cooled unit, the fuel system could be tuned differently (maybe even different injection pump), fuel stop solenoid will be different.

If this is a 2nd hand marine engine I would want to check if it was closed or open cooling (open = seawater; closed would have a heat exchanger with coolant in the engine). If the engine was open cooled be very wary of internal rusting.

Usually going from a car to a boat requires quite a few changes due to the installation in an enclosed box, but going back to a car – all should be ok - except if it has a proper marine stop solenoid on the fuel pump, that would have to be changed to work with the car circuits. Only other issue I can see, might be water cooled exhaust manifold, it might not last with the normal heat you would get with out the water.