316
MGBGTV8 alternative distributor
Chris Armitage (Tundra 2066) from Hampshire has found and extensively tested an alternative to the Lucas distributor for the MGBGTV8. (Dec 04)

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.

The Mallory distributor is an American after market

Back to Contents listing

accessory, 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!

Copyright reserved by the V8 Register