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RE: Tuning - It's All in the Basics

To: "'Brian Sanborn'" <sanborn@net1plus.com>, "'Triumph List'" <triumphs@autox.team.net>
Subject: RE: Tuning - It's All in the Basics
From: "Jim Altman" <jaltman@altlaw.com>
Date: Mon, 9 Jul 2001 22:40:25 -0400
Or goes to prove the adage that 90% of all carburetor problems are
electrical in nature.



Jim Altman  jaltman@altlaw.com Illigitimi non Carborundum
http://www.altlaw.com/metro/jaltman.html    69-TR6 76-TR7 80-TR8  W4UCK






-----Original Message-----
From: owner-triumphs@autox.team.net
[mailto:owner-triumphs@autox.team.net]On Behalf Of Brian Sanborn
Sent: Monday, July 09, 2001 10:17 PM
To: Triumph List
Subject: Tuning - It's All in the Basics


Listers,

Lots of sharing tonight.

I want to tell you about a revelation of basic maintenance I had
last week.  I have been trying to figure out lately why my car
would not maintain a steady idle.  When the car was hot, it
seemed to load up like it was too rich and almost stall.  The
carbs were rebuilt with new bushings and shafts... I wondered
whether I needed to find a better SU needle with a leaner profile
at idle.

Well the real problem was my points. I always assumed they were
good for at least 8,000-10,000 miles.  I checked because I was
getting a misfire at low RPM while pulling under load.  Well...
They were barely opening. The red plastic version that is
available these days does wear a bit quicker than the one I
remember.

I installed the set I was too lazy to install this spring and
presto!!... great smooth performance and steady idle.  I also
finally got the timing advance right by using the "turn the
advance wheel until max Idle RPM and back off 100 RPM"

The car is running like dream.  When I was out driving... I
thought this is so good it's time for something bad to happen.
So I was very watchful of deer and careful about other cars all
the way home.

Perfection is in the details.

Brian Sanborn
'62 TR4  CT16260L-O - Groton, MA

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