This is quite an old thread, apologies for the bump, but I suffered this problem over a year ago and when I found out how much it was going to cost me I wasn't exactly enamored with the situation, which is why it took me a year to fix. The vertical bracket on my pump head had snapped at some point and my cap/connector gone with it. Irritatingly the most expensive single part, the pump, worked fine so I figured maybe I could repair it. I ordered all of the parts (great service by the parts dept. in Lincoln) and measured up the key ones once they arrived, drew them up and used Shapeways to print them at a cost of around £10. I did think about printing the actual cap too, but it's complex, asymmetric and you've got to get it primed/printed (great service from Elite Motors in Northampton on my new one).
Parts. I didn't bevel any of the printed parts because I knew I could file them if I wished later.
Before. You can see the vertical support has snapped, leaving my cap stranded somewhere in the countryside.
Prepared. I've filed off the remainder of the old bracket and taken advantage of the larger surface area to glue onto.
After. Some heavy duty epoxy and it's all set. Although there is a small snag...
..so, I did all of the above after fitting my new parts, which means the fix is untested. I think this is a pretty solid job and I wouldn't be afraid of using it in my car, which if either one fails again I will do. I'm not selling the parts yet but you can see them on Shapeways
https://www.shapeways.com/designer/gord. If there is demand I'll happily make them available, there will be no mark-up, you'll just pay the cost of the materials. Or there may be no demand, in which case I have learnt quite a bit about the power of printing parts.
