There I go again! Yes, yes...it's the other way around. TR6 had retard
only in from 72 to 76, 71 had advance but was plugged according to
Bentley's.
Greg
CD6250L
----- Original Message -----
From: "Hugh Barber" <tr6nut@sbcglobal.net>
To: "Gregory Dito" <g.dito@worldnet.att.net>; "Seth Glassman"
<76tr6@optonline.net>; "6 Pack" <6pack@autox.team.net>
Sent: Sunday, June 08, 2003 10:50 PM
Subject: RE: TR6 Distributor
> Actually, USA-spec Triumphs from about 1972-on used distributors with only
> vacuum retard. The retard unit was routed to a vacuum port that only
pulled
> a vacuum at idle. This served to retard the idle timing, while having no
> effect (or marginal effect) on engine timing off-idle. This was for
> emissions purposes. Triumph also used a thermo switch in the circuit
that,
> in the case of engine overheating, would interrupt the idle vacuum and
allow
> the timing to be advanced until the engine cooled off a bit. According to
> my Bentley manual. TR6 from 1972 to 1976, used Lucas distributor #41385,
> which had centrifical advance and vacuum retard ONLY. Static timing was
to
> be set at 12 deg BTDC, with dynamic timing at 4 deg ATDC (@800-850 RPM).
>
> Hope this helps,
>
> Hugh Barber
> Hollister, CA
> '73 TR6
>
> -----Original Message-----
> From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net]On
> Behalf Of Gregory Dito
> Sent: Sunday, June 08, 2003 6:33 PM
> To: Seth Glassman; 6 Pack
> Subject: Re: TR6 Distributor
>
>
> Seth,
>
> Very early TR6 used both, but a 76 only had a vacuum advance. Typically
> auto distributors have an advance, maybe both, but never a retard only.
>
> Greg
> CD6250L
>
> ----- Original Message -----
> From: "Seth Glassman" <76tr6@optonline.net>
> To: "6 Pack" <6pack@autox.team.net>
> Sent: Sunday, June 08, 2003 7:56 PM
> Subject: TR6 Distributor
>
>
> > List,
> >
> > Can anyone tell me whether the Lucas distributor on the 1976 TR6 is a
> vacuum advance or vacuum retard.
> >
> > Thanks,
> > Seth Glassman
> > 76 TR6 CF57223U0
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