Hi guys, I haven't been as active as I'd liked since getting my 78 911 because sadly some little muppet smashed into the back of me just a week after getting it.

Anyway after 8 weeks in the body shop I finally have it back but it's now developed a starting problem. It started first time and every time for the first few days then after a 10 min journey I left the car for 5 min but on my return I couldn't get it started.

It turned over but just wouldn't fire. I checked for spark and it was fine then I realized I couldn't hear the pump priming. After a few more attempts it eventually started fine.

Next day it started fine but stopped off for fuel and again when I wanted to start it would turn over but no pump running. This time I sat it out for 10 mins and sure enough it fired up fine.

It's done the same thing 2 or 3 times now and always started after 10-15mins but today it done it again and no matter what I do it won't fire up the pump.

I've wiggled just about every connection and sensor on the car so now just need some advice what bits to try replacing first.

Thanks in advance