Thanks for that, it would be a right pain trying to see inside after removing blanking plate and hanging upside down in the engine bay ! I assumed it surely must have it , but good to know for sure. I will rip the one out of the scrap mini and give it s try, I hate electric anything and would much rather trust a mech pump ( Luddite me ) though the pump in my other moggy has never actually died on me, Yet !
Yes, I think I got mine off of a mini but used a new pump. It was a Moprod FP53 for a Marina (from memory). I do worry though when people mention the possibility of the diaphragm leaking petrol into the sump and what that would do. Maybe there is a later design of mechanical pump that dumps petrol somewhere else in the event of a leak. It does seem a bit of an achilles heel.
Just had a quick look on the minispares forum and there is mention of a drain hole underneath the pump to let escaped fuel out if the diaphragm is leaking, so check this is clear. There was also mention of getting the correct travel on the pump lever. I think I did a test fit without the spacer and slid the pump on the studs to determine the point at which it picked up on the cam and how much the cam moved it when rotated etc.