Ford 1.8 diesel non turbo boat engines.

[colr6]

Got a job to go look at a boat fitted with twin 1.8 diesel ford escort engines believed same as mk3/4 escort Orion/ Fiesta First issue is cooling. Apparently no sea water going through heat exchanger probably why they get hot..lol I gather sea water goes through heat exchanger which has internal pipes inside containing clean engine water to cool engine. Correct ? Is this then bled into exhaust system and expelled with exhaust gases or separate outlet ? Obviously these have two separate water systems, clean and sea

Long time since I did anything with these but the way the guy is talking he wants them re building. Has anyone a workshop manual for these they no longer need. Useful for torque settings and timing marks, would save me trawling the net for info and writing it all down and forgetting where I’ve put it. Or even a book on marinised ford engines. 
Going on Tuesday so will have a look to see if there is any conversion plates on them for more info.

 

Any info much appreciated.

Edited September 12, 2021 by colr6

[DT36]

Col, I've worked with MTU engines for marine applications and currently work with a MTU engine with a dual cooling circuit that is integrated for land use. 

Biggest issue that you would see on a marine application was with the brackish coolant filter not being replaced. These would get overlooked for cost or some fitters did not understand what they were for. This caused clogging of the galleries etc which restricted the flow. 

Additionally, it might also have a dual impeller water pump. The MTU certainly does, but I don't know if the Ford engine is adapted for this. The principal behind the dual impeller is to pump the 2 separate circuits via 1 pump.  Sometimes, one circuit could go down due to a faulty impeller. 

[katana]

If it is using sea water then corrosion within the heat exchanger has to be a possibility or 'sea life' blockage, all subject to the material used. As a separated system there should (I imagine) be a pump to move the sea water through that circuit either separate or a modified engine pump to make it dual circuit - good luck rebuilding / replacing one of those if it is! Alternatively there may be an underwater 'scoop' positioned behind the prop that relies on the prop to push water through the cooling system - obviously only works when boat is in gear / moving. And yes it is usual for the 'hot' water to be discharged into the exhaust manifold downpipe directed toward outlet. Can't help with manuals as never a fan of 'oil burners'