16-08-2018, 09:27 AM
I only have one A7 with a mechanical fuel pump (the Pearl) - this was fitted to the car in 1999, as was the rubber fuel line between it and the SU Carb (these were recently swapped over from the old engine along with the Whatmough Hewitt cylinder head). Both are still working, despite their age and some 80000 miles of use.
I have an SU pump that was fitted (brand new) to the Ulster in 1990, it to has a rubber pipe connecting to the SU carb - again no issues since with 96000 miles of use.
All my other Sevens (and Twelve) have copper pipes and brass connectors - again, no issues.
I have noticed that fuel goes off quicker, but this only seems to affect (in my experience) s/d carbs.
I have an SU pump that was fitted (brand new) to the Ulster in 1990, it to has a rubber pipe connecting to the SU carb - again no issues since with 96000 miles of use.
All my other Sevens (and Twelve) have copper pipes and brass connectors - again, no issues.
I have noticed that fuel goes off quicker, but this only seems to affect (in my experience) s/d carbs.