Offroad-Express

the bush trucks missing a tad,
had the return line banjo bolt off the pump as reputedly some returns have a gauze filter in them.
mine did pressed inside the banjo bolt that appeared to have no holes to the internal side of the bolt,
so gave it a wire buff and found one purposeful looking indentation about the size of 1mm drill.
so headfirst I go and put that drill through with a few twists of the fingers.
now I'm starting to wonder if that banjo should have the port to the pump body or not.
between it sucking air as it was parked backwards up a bank and the starter trying to catch fire as I started to rebleed it, its yet to run again.
so can anyone out there tell me if there return line banjo has a port back to the pump body?

Just pull the gauze out and place it on the shelf, Make sure the fuel filter is in good condition

nah blow that already stripped a set of carbs at sea as someone decided to remove a factory filter when the engine started starving.
filter is very fine so catches any nasties from re entering the pump.

That hole in outlet banjo bolt does need to be pretty tiny. It won't run well with a bigger hole. I believe it lets the fuel away from the pump to easily, so has not enough pressure inside the pump.

it would seem it helps regulate fuel pressure ,
as my fuel screw has had a tweak I think its now time to boost the feed pump pressure to ensure I don't starve the high pressure side.
adjusting this as far as I can see in my manual involves giving the regulator plug a tap or wind down.
I think i'll pull the injectors at the same time so I can ensure none need a shim and all are spraying as they should.
if the feed pump is a bit slack it may explain why the 1/8th turn on the high pressure side didn't make a huge difference and the miss remained much the same.

so got it running today once I pulled and reset the feed regulating valve which was sitting .2mm off its seat with no tension left to close.
reset was simply punch the plug down .2mm with a hammer and drift.
started far less reluctantly and the miss is all but gone,
have some low end torque back and can idle around far more easily,
spat its 80ml of fuel back out the return in the required 10 secs at 1000 odd rpm.
will give it some fresh diesel and take it up thompsons for a decent run