The VCU was as hot as a cup of tea after a 10 mile test run, I put this down to the previous owner fitting two brand new tyres on the front...
Will swap them over PDQ.
Mine is a bugger to start after leaving it for a few hours or overnight, in seems like fuel starvation to me, just the same as if you ran out of diesel and had just pumped the fuel back into the filter and try to start again. Do Hippos have a non return valve in the fuel feed pipe? Maybe I could try fitting one, any suggestions as to the best place to fit one?