Randall,
Thanks... I see what's missing now...
Is this not Moss part no. 163-740 (ratchet clip)?
Kurtis J.
Russellville, Arkansas
1963 TR4
CT19389L
www.geocities.com/tr4_1963
> There should be a shaped flat spring that goes between the edge of the
> thumbwheel and the distributor body. The spring has a ridge that engages
> with the knurls on the thumbwheel, so it 'clicks' as you turn it. The
> spring is only held in place by the pressure from the thumbwheel, so it's
> easy to lose when you remove the advance. The Lucas P/N is 421825.
>
> There should also be a coil spring between the flat side of the thumbwheel
> and the housing, it's P/N Lucas 419086. It's primary purpose is to remove
> free play from the adjustment, but it would also tend to keep the
thumbwheel
> from turning under vibration.
>
> I don't know of any source for these springs except for an old distributor
> ... almost any Lucas with the 'micrometer' timing adjustment will do.
>
> Randall
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