It very much does sound like the stop solenoid if it runs spot on and then suddenly cuts out, and also has trouble shutting off when the key is out - I would check the wiring to the solenoid (or suggest this to your mechanic at the end of the week), good chance that might be it - normally a shagged pump is accompanied by all sorts of poor running characteristics so would put that on the back burner for now

you can always take the plunger out of it - sure, you will have to stall it every time to stop it, but for a short test period, it would give you some answers.

Hi everyone,firstly sorry I didn't reply to the two posts on this second page,only just found the page. A week ago, having run a new fuel injection pump for a few days ok I was about to come on and say problem solved, but then she broke down 3 times in one day. Same breakdown. So my mechanic out a wire from the battery to,I beleive,the solenoid, with a switch between and told me to use it before ignition the next time I broke down. Broke down next day,used the switch, still no go. This i understand would discount an electrical problem (would it?) Anyway next everyone (several mechanics and my parts supplier) told me it would be my lift pump. Replaced it today,broke down after 4 minutes. It's definitely getting more frequent,takes less time from start to happen. Getting pretty desperate as it's been going on ages now and I need my car! Two things, firstly I imagine that there is a fuelly smell about a minute before she breaks down. Second i imagine there is a misfiring sound. I say imagine because I'm be been asked about misfiring previously and hadn't noticed it before. The smell i am more sure about but not 100%. I'm hoping that elimination of the fuel injection pump and the lift pump will point to something else! I will very much appreciate your suggestions for the most likely culprit. Thanks.

Welcome to the forum

Thanks Hippo