Carrington224 said:

What ratio of derv to veg oil, try going back to derv for a while and I'll bet your starting problems go away.

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phippsey27 said:

Hi guys I have an issue when starting my disco in the morning, once she is running I do not have the problem for the rest of the day, earth wires ok, battery good, she will turn over just to the point when u think the battery is going to go flat then she fires, glow plugs are new and working, if you put your foot on the accelerator while starting she fires quicker, I have just street running on veg oil!
I've changed fuel filter, all my investigations point to fuel pump/ lift pump although lift pump changed 8 months ago (well know rubbish brand) what's your opinion on what fault could be, it is like there the fuel is running back to tank! Cheers perry

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