Corey,
Don't know what year car you have but on the TR250, the retard unit screws
onto a shaft coming from the advance unit (after it passes through the dist
housing). It does not screw into the dist housing. The Moss diagram is not
clear on this. The TRF catalog, at least the 250 catalog, is much clearer.
As far as I can tell, the dist. housings are the same for many model years.
The main difference is in the way the vacuum advance/retard was configured.
On the early cars, we had both an advance and retard unit. At some point,
the retard unit disappeared and was replaced by a knurled nut.
Dick is right, I have the retard blocked off and the car still runs great.
Peter
'68 TR250
on 9/17/02 9:53 AM, corey.sherman@rcn.com at corey.sherman@rcn.com wrote:
> Thanks everyone for your assistance... one more thing, please.
>
> I tweaked the carbs for quite some time, but couldn't quite dial them in,
> so brought the car to 'ye old garage' (nothing like going to an expert).
> $80 later, it runs much better, but even the shop has it idling around
> 1100. The mechanic also detected a small vacuum leak around the manifold
> (as someone suspected). He also adjusted the timing. This has taught me
> not to take on too much at one time - I replaced the plugs, installed a
> Pertronix and did a carb rebuilt simultaneously.
>
> One disturbing outcome was he pointed out that my distributor set up is
> incorrect! Apparently the DPO (or mechanic) screwed this up royally (Jay,
> aren't you glad you didn't buy this TR). I had never notice this until
> now.
>
> It appears that the vacuum retard is missing*. The advance works fine, but
> the retard is suppose to have a nut and bolt adjustment (missing), and
> screw into the housing (which is stripped).
>
> Any suggestions would be great appreciated (as always).
>
>
> (* 560-155 Vacuum Unit, retard TR250, TR6 to CC58360)
> http://www.mossmotors.com/cgi-bin/db2www/mossmotors/MossUSA/Shop/ViewProducts.
> mac/report?T=24198&ModelID=41000&PlateID=3879
>
>
> corey.sherman@rcn.com
> 1971 TR6 CC572690
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