I certainly fitted a 73 (CB) pump to a 75 (RB), so I am sure you could go
the other way and indeed use a 79. If your pump has diode spark suppression
the diode must be reversed when fitted to a pos ground car or you will cook
the wiring and blow the diode. Capacitor suppression can be used as-is.
The possible problem that you might get that I didn't bearing in mind you
are fitting a later pump to an early car, is that the later pumps had the
electrical end sticking into the boot/trunk and so didn't need the vent tube
from the cover to the boot. Using a later pump without vent could possibly
suck moisture into the electrical end.
----- Original Message -----
From: "MonteMorris" <mmorris@nemr.net>
To: "MG list" <mgs@autox.team.net>
Sent: Wednesday, May 01, 2002 4:57 AM
Subject: parts exchange
> Will a fuel pump from a 74B or 79B fit a 67B (I think the 67 is pos.
ground)?
> If so, what do you do about the pos ground problem?
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