If the plugs are black I would suspect rich mixture or burning oil. I would try
to adjust mixture for the carb feeding the black plugs, clean the plugs and
rebalance the carbs.
Easy way to check timing is with a vacuum gauge on the manifold side. 16-18 in
Hg seems to be the sweet spot. You can adjust to that by turning the dizzy a
bit.
These cars are pretty simple but the more "upgrades" you add the more
complicated you make them.
I'm still running stock coil, points and 2 ZS, car runs fine. Idle is at 800
and smooth. The only upgrade is a vacuum gauge under the dash to make timing
between different grades of gas easier.
Lou
72 Pimento
-----Original Message-----
From: Sally or Dick Taylor <tr6taylor@webtv.net>
Sender: 6pack-bounces@autox.team.net
Date: Sun, 13 Nov 2011 19:43:31
To: oliver<sumton@sbcglobal.net>; Triumph 6 Pack<6pack@autox.team.net>
Subject: Re: [6pack] starting issue
Oliver---If you're wondering if it's "the coil" that is causing the no-start,
pull off the coil wire where it plugs into the center of the distributor cap.
Hold the wire close to the valve cover and turn the ign. key to start position.
If sparks jump continuously, it's not the coil.
Erratic idle speeds could be from sticking throttle linkage, or sticking
distributor advance weights, or carb bi-pass valves.
Dick
-----Original Message-----
From: oliver
Sent: Sunday, November 13, 2011 11:29 AM
To: Triumph 6 Pack
Subject: [6pack] starting issue
car has pertronix, lots of performance upgrades including triple carbs, etc
in the last couple of months I had rough running problems, manually turned the
dizzy to see if that helped (it didn't). may not have put it back exactly
right. some of the plugs were black. replaced them, and on advice from my
mechanic who had just worked on the car for other issues (suspension) pulled
the carbs and replaced the gaskets on the deceleration valves. put them all
back and balanced them.
drove for about 30 minutes yesterday, turned it off, turned it back on and off
a couple times quickly, then off for about 20 minutes, then drove for 2+
hours. had lunch, and drove home about 30 minutes. seemed to run well,
except sometimes the idel would be up about 2k, sometimes down in the low
teens.
waited an hour? and the car was a little hard to start. didn't run that well.
went to the gas station, it wouldn't start. waited a few more minutes and it
started. drove home. car was not running well.
this morning I advanced the timing just a smidge and it started immediately.
drove about 15 minutes, seemed ok except when I was almost home the idle
dropped down to zero, and it restarted. put it back in the garage a few
minutes later and shut it down. waited about 5 minutes and it wouldn't
start.
sound like a coil? its an msd maybe 2 years old.
I thought I'd swap out the coil and see. any other ideas?
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