I'm not sure why anyone (except for concours people) would like to
fit a "good as new"/rebuilt Lucas 15/17/21 ACR alternator to their
TR6, as they're pretty whimpy in terms of output. My 1969 TR6 had
(yes, past tense, my brother and I replaced it on the weekend) a
15ACR, which outputs (I think) a whole 18 amps max. That's pretty
pathetic given that the headlights will take about 10 amps by
themselves, plus being a PI it has an electric fuel pump which
draws some indecent amount of current (which is probably
understandable given that the motor is a wiper motor...).
We put on a Bosch unit from a Chrysler (not sure what model as it
was just lying around after someone's engine rebuild), replaced
the bearings, cleaned up the slip rings, and fitted an internal
regulator (which includes new brushes) for AUS$40. The only
difficulty was grinding the spacers on the mouting bracket to fit
and get the pulley to line up, and that wasn't difficult. The result
is a 55 amp alternator, which seems to do a sterling job of charging
the battery - the headlights don't even go dim at idle, and the
voltage never drops below 12.7V or so with every accessory & main
beam on, even at idle. I think that's a fairly decent mod. to make...
OK it's not original, but if that means I don't have to replace my
battery again, then that's alright with me.
Frank Biedermann
'69 TR6
Adelaide
AUSTRALIA
Adrian Dix-Dyer wrote:
> In the UK I believe TR6's were fitted with a Lucas 17ACR unit with built
in
> regulator. In fact virtually all British mainline production cars were
> fitted with this type of alternator from the early seventies for many
years.
> They are plentiful secondhand or reconditioned in UK and available from £
10
> or so. It may be worth the shipping to US of A???
> Regards
> Dixie TR4A CT 64306
<--- Snip --->
> Which of you knows what alternator I need?
> The next step will be electronic ignition,,,so be on the lookout for my
> question and have your answers ready.
> Thanks, :-)
> JS
>
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