Well..... after some sleep and a better frame of mind, up first thing to try and resolve, before I unpacked the truck again!
Although it soon dawned on me, that my first thoughts of the 'paper clip trick' on the fuel pump relay was obviously not going to work!!
However, I was able to pull all the fuel out via the fuel pipe on the filter head with a small 12v electric pump I have.
Put a new fuel filter on and some fresh diesel.
Went great for about 5 miles!!!!
So, second time in a row the trucks let me down going to a LC meet.
I'm just assuming that it didn't drain the tank enough that way, probably shit or water still sitting in the tank sump which is getting drawn through as the fuel sloshes about!
I guess I'm just going to have to find out how to drop the tank to drain it completely.
Pretty cheese'd off because the weather's fantastic up there. But hey-ho, I suppose that's the result of a vehicle sitting around not being used!!
Enjoy the weekend guys.