I have the parts of various petrol pumps and wish to make a good 12 volt pump, however I do not know if the 2 pump bodies that I have are 6 or 12 volts.
One of the bodies has a 6 cast into the flange however that might not be conclusive evidence.
I would appreciate it if someone could give me advice on the subject.
If you go to the following article from my independent T-Type website you'll get advice on distinguishing 6V from 12V from somebody who knows more about SU pumps than most. It's not straightforward!
Incidentally, there will be a follow up 3 page article on refurbishing the SU pressure pump in the AUGUST issue of my independent T-Type magazine "Totally T-Type 2". The August issue should be on my website around about the 15th July.