Oh right, I though the late ones had a semi electronic set up. I doubt the fault will be restricted to one cylinder, what does the engine sound like when its smoking? The only really strange thing I have had with a mechanical pump was on a Perkins 4/108 which had overheated, the return pipe from the pump had melted and stopped the flow of fuel and this completely upset it, just wondering if you perhaps had a restriction, long shot I know. Very odd that it only does it mid range, usually that's the bit you can rely on. I would think it must be the pump, the Bosch ones seem more reliable but if you change it you will have to change the pipes as well as the injection order is different.

Peter

I have just re read your post, its OK when it gets hot then?

Edited by Peter.N. on 24/03/2011 at 14:05

Hi Guys, Ooops, I forgot I had posted my problem on here....

Well, still no resolve to this problem, still smokes like a trooper on start up until engine gets up to normal operating temp.

She's had a complete service, changed all filters and even poured neat Forte into the fuel filter to possibly clean lines/injectors etc. Have checked glow plugs, all ok. Poor girl does seem to be a bit down on power, although still doesn't miss a beat, just runs rough when cold and engine seems a bit noisy (almost like a knock) until she warms up.

Not working at the moment so spending lots of cash is out of the question, and cannot afford new injectors and I'm even just wondering now if head gasket has blown. What's the best way to check without spending ££££s??

Can't you tell I'm clueless

Cheers guys