I had a leak on the 'throttle' spindle (occasionally fuel leaking out but usually air leaking in) so yesterday I took the top off the pump and eventually decided just to replace the 'o' ring.
Reassembly was the nightmare I presume it's supposed to be and I had some difficulty getting it running again but eventually did. Before stripping it down I noted the max rpm (according to my rev counter which is probably a bit out) to be around 4750 and since I don't want the MOT test to blow the engine up I was trying to adjust it so it was no higher than that an possibly a bit lower. Although it seems to be running very well the rev limit is something over 5000 so I don't want to risk an MOT emissions test until I can fix the max revs.
So... Questions... (Bosch pump)
I've turned the fuel adjustment anti-clock - reducing the fuel - by several turns - did I reassemble something slightly differently for that to be needed ?
There's an adjustment to limit the movement in one direction on the cutoff lever - what does that do please.
At the moment, tickover is a little high but that should be no problem to change with the idle adjustment.
It does feel a bit 'livelier' than it used to - does that mean I'm still overfuelling slightly despite the new position of the fuel adjustment.
There's no smoke - but I've mixed one bottle of Forte with about 2 gallons of diesel and (prior to stripping the pump) thrashed the nuts off it a few times.
Ok - to be fair to diesel pumps this is the first one I've tackled.