I have never been
impressed with the quality of the standard V8 Lucas distributor. Firstly
the dwell adjuster threads stripped and left me stranded by the roadside.
Secondly I was getting fed up with repeatedly replacing the vacuum
advance/retard unit, then I had problems with pinking even when the
ignition was retarded a few degrees from the factory setting. Finally
I had an erratic idle speed which was being caused by weak return
springs and sloppy mechanical advance/retard mechanism, revealed as
timing scatter visible when checking with a stroboscopic timing light.
Hence I bought what has turned out to be an excellent alternative
which has cured all these problems- a Mallory twin point distributor.
MGBGTV8 alternative distributor
Chris Armitage (Tundra 2066) from Hampshire has found and extensively
tested an alternative to the Lucas distributor for the MGBGTV8.
distributor is an American after market
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presumably originally aimed at the Buick version of our engines
but supplied with adaptors to fit both types of Rover V8 oil pump
drive. It is a substantially engineered unit with a turned alloy
body & brass spindle. Everything is more substantial than the
Lucas unit, and features
heavy duty twin contact points. It is possible to adjust the amount
of advance. Installing & setting up is the same as the Lucas
unit except there is no external dwell adjuster. However I have
found that it has retained its gap / dwell over the 3 years since
I fitted it. Idle is now rock steady, there is no pinking, the engine
seems smoother and it inspires confidence.
I obtained mine from a Rover V8 engine specialist in Norwich - RPI
01603 891209 or www.rpiv8.com. At the time of writing they are £215
for the contact breaker version which I fitted, or £345 for
an electronic type. I have no connection with either RPI or Mallory!
reserved by the V8 Register