Pertronix electronic conversion (LU181)
distributor options for the MGBGTV8
The V8 distributor with a contact set has to work hard and needs regular cleaning
and setting with replacement points at 6,000 mile intervals or less. One good
feature is the external adjustor so the fine adjustment of the contacts can be
set whilst the engine is running. Simply connect up a dwell meter and adjust to
set the dwell. For distributor maintenance, Holden Vintage & Classic offer
an excellent rebuild service. Some parts (top plate for example) are the same
as for the Range Rover so are easy to obtain. With nearly one million Rover V8
engines built to 2004, replacement contact sets and condensers are easily obtained.
However most of them are of extremely poor quality, so it is best to buy only
Lucas or Unipart spares.
Some members have fitted after-market electronic
ignition systems and a comprehensive review of available systems together with
a recent note from Gordon Hesketh-Jones on fitting a Pertronix unit with a powerful
coil looks most interesting.
Gordon Hesketh-Jones carried out careful
research of the available electronic systems in February 2007 and then in June
2008 a further report on the system he had used to upgrade his distributor - a
available for review|
Distributor options for the MGBGTV8
Hesketh-Jones (Harvest Gold 1907) from Cornwall uses his car all the year round
and with a total mileage now rapidly approaching 400,000 has a great deal of experience
of maintaining the model from his regular servicing work and numerous rebuilds.
One regular service difficulty was with worn distributors, so he set about some
research into the options for the V8 which he reports on in this note. (Feb
123 Ignition system
See also the sequel on another upgrade option, the 123 Ignition system. More
More on V8 distributors
Gordon Hesketh-Jones (Harvest Gold 1907) from Cornwall
has clocked up more than 400,000 miles in his MGBGTV8 so has had a higher maintenance
workload than many fellow V8 enthusiasts. He also uses his V8 for touring in Europe
so reliability is a key concern for him and one area is the reliability of his
ignition system. As an update on his earlier V8NOTES on this topic, Gordon reports
his experience with fitting a Pertronix electronic ignition system. (Jun
more on the Pertronix ignition upgrade on the Petronix information gateway.
The Pertronix Ignitor system
is a compact and neat installation fitting entirely within the distributor. No
external box of electronics is required, but you do have to bring a 12v ignition
feed wire ( by-passing the ballast resistor) to the unit. The high voltage coils
also require a full 12v supply.