make sure you get one with a glow plug - the thermostart is a nightmare. Also, "parts 4 diesels" does a full 4108 overhaul kit.
other things to consider..
a recon CAV fuel pump could cost around £400 if like mine it falls to bits
a new set of injectors are a similar price.
I overhauled as much of mine as I could - all in Situ. new fuel pump, new injectors, new water pump, new pistons, cranks, big ends, complete top end overhaul with all new valves etc. The only thing that I couldnt do was the main bearings ...... so you can guess what bit failed, when the engine heats up and the oil thins it pushes past the main bearings causing an oil pressure drop.
I also replaced the mechanical fan with a Kenlowe, put a K&N filter on as I didnt have any filter when I got it. I also put a cherry bomb exhaust on - to reduce the exhaust back pressure..... and then my oil pressure gauge capillary tube burst, sprayed the exhaust manifold in oil and set fire to my wiring loom - happy days
The Dog is home....
http:www.singleusemedical.co.uk
my new business