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Would forgetting to hook up the vacuum advance be a possibility?
> On May 13, 2020 at 9:41 AM EDWARD WOODS <fogbro1@comcast.net> wrote:
>
> Bob,
>
> Check the orientation of the throttle plate tapers as well as their
> centering. If the idle was adjustable, even roughly, prior to rebuilding,
> something's occurred during the rebuild to screw it up. Not the throttle
> shaft fitment.
>
> TR4A throttle shaft openings are bushed, so they should never have to be
> oversized. Just replace the bushings and fit standard diameter throttle
> shafts. If you can't find a local machine shop to do the work, send them to
> Joe Curto.
>
> Ed Woods
>
>
>
> > > On May 12, 2020 at 5:58 PM Bob Leaver <
> boleaver@gmail.com mailto:boleaver@gmail.com > wrote:
> >
> >
> > I have a 1965 Triumph TR4a that I rebuilt the SU carbs and now I
> > can't
> > get the idle below about 1500. I've tried all the screws and checked
> > all gaskets and nothing. The only possibility I can come up with is
> > air getting around the shafts. When rebuilding the cars I didn't
> > replace the shafts because I didn't have a reamer. Moss has a reamer
> > for $290.00. I looked on line and can't find a less expensive
> > replacement. The book states the size of the reamer is 5/16" +
> > 0.0105". What kind of measurement is this? Can you use a 5/16"
> > reamer?
> > Does anyone have ideas how I can get the idle down? Does anyone know
> > of a cheaper reamer to use? Thanks, Bob
> > ** triumphs@autox.team.net mailto:triumphs@autox.team.net **
> >
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Would forgetting to hook up the vacuum advance be a possibility?
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<blockquote type="cite">
On May 13, 2020 at 9:41 AM EDWARD WOODS <fogbro1@comcast.net> wrote:
<br>
<br>
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color: #333333;">
Bob,
</div>
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color: #333333;">
<br>
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<div style="font-size: 12pt; font-family: helvetica, arial, sans-serif;
color: #333333;">
Check the orientation of the throttle plate tapers as well as their
centering. If the idle was adjustable, even roughly, prior to rebuilding,
something's occurred during the rebuild to screw it up. Not the throttle shaft
fitment.
</div>
<div style="font-size: 12pt; font-family: helvetica, arial, sans-serif;
color: #333333;">
<br>
</div>
<div style="font-size: 12pt; font-family: helvetica, arial, sans-serif;
color: #333333;">
TR4A throttle shaft openings are bushed, so they should never have to be
oversized. Just replace the bushings and fit standard diameter throttle shafts.
If you can't find a local machine shop to do the work, send them to Joe Curto.
</div>
<div style="font-size: 12pt; font-family: helvetica, arial, sans-serif;
color: #333333;">
<br>
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<div style="font-size: 12pt; font-family: helvetica, arial, sans-serif;
color: #333333;">
Ed Woods
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color: #333333;">
<br>
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color: #333333;">
<br>
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<blockquote type="cite">
<div>
On May 12, 2020 at 5:58 PM Bob Leaver <
<a href="mailto:boleaver@gmail.com";>boleaver@gmail.com</a>> wrote:
</div>
<div>
<br>
</div>
<div>
<br>
</div>
<div>
I have a 1965 Triumph TR4a that I rebuilt the SU carbs and now I can't
</div>
<div>
get the idle below about 1500. I've tried all the screws and checked
</div>
<div>
all gaskets and nothing. The only possibility I can come up with is
</div>
<div>
air getting around the shafts. When rebuilding the cars I didn't
</div>
<div>
replace the shafts because I didn't have a reamer. Moss has a reamer
</div>
<div>
for $290.00. I looked on line and can't find a less expensive
</div>
<div>
replacement. The book states the size of the reamer is 5/16" +
</div>
<div>
0.0105". What kind of measurement is this? Can you use a 5/16" reamer?
</div>
<div>
Does anyone have ideas how I can get the idle down? Does anyone know
</div>
<div>
of a cheaper reamer to use? Thanks, Bob
</div>
<div>
**
<a href="mailto:triumphs@autox.team.net";>triumphs@autox.team.net</a> **
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