401 Ignition Coil

[brianjgkidd]

> My 405 is still positive earth, and has been been fitted for over 30 years with a Lucas 11AC alternator; in that time I have had one alternator failure, a seized rear bearing requiring me to spend 4 days in Orvieto (oh dear!) while it was fixed. My alternator installation has a Lucas 4TR voltage controller, a field isolating relay, a warning light contoller and an ammeter. These ancillary components should not be diifficult to source, but I found it difficult to source a suitable 11AC alternator for my son's early E-type Jaguar. In the end, we changed the polarity, and fitted a modern lightweight Nippondenso alternator.

If you want to fit a modern alternator, then you will have to change to a negative earth system - not difficult though you would need to check for any polarity sensitive components on your car. Other than that, packaging is likely to be the only issue - but certainly no problem on my installation.

Regards,

Brian Kidd> > > > > >