Bob:
I am going to take exception to the Haynes manual and say that
the there SHOULD be a spark when you open the points, assuming that the
rest of the ignition system is in the correct configuration. This is
what the distributor does; open the points to generate a spark. If there
is *NO* spark, then the condenser is shorted or you have no power to the
coil. I am thinking that either the Haynes is misleading, or just flat
in error on this point.
The rough running under acceleration, and smoothing out when the
engine speeds up sounds like a carb issue. I am going to say that you
have a perforated carb diaphragm, bad air valve spring or low/incorrect
dashpot oil. Either of these can cause the symptoms that you are
describing. Since you say the carbs are "well adjusted" I am assuming
that the dashpot oil is topped up, so my number one suspect is that you
have a bad diaphragm.
Cheers,
Vance
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net] On
Behalf Of TRsick@aol.com
Sent: Saturday, September 24, 2005 6:37 PM
To: triumphs@autox.team.net; 6pack@autox.team.net
Subject: A little help??
Hi All:
I'm trying to help a fellow TR6 owner. He has a 74 TR6, we have
been
chasing a rough running condition with no success.(He is getting very
discouraged)
The car runs rough under load (idles nice), but gets smoother once past
the
initial acceleration. We have done the following...
Carbs are adjusted well
New fuel filters
Valve lashe adjusted
New Coil (12V instead of the 6V with Ballast removed & 12v feed from
key
switch)
New spark plugs
New wires (Old ones tested fine)
New points, condensor, cap & rotor
We even tried another used Dist (seemed to make it better, but the rough
running came back the next day.
We think the condensors are failing. Tried the test in nthe Haynes
manual
(with "key on open the points if a spark results = bad condensor"). All
the
condensors we tried failed the test, so we are wondering
A: Is the car ruining the condensors?
B: If so, what would cause this?
Food for thought, we purchased a Pertronix ign. As soon as we tried to
start
the car the Pertronix smoked. (We did NOT have the unit wired wrong =
red to
pos side of the coil, black to Neg side of the coil. Pertronix is
sending a
replacement, hoping we just got a bad unit????
Any advise???
Bob Greene
_www.capecodbritishcarclub.org_ (http://www.capecodbritishcarclub.org)
_www.capecodpowdercoating.com_ (http://www.capecodpowdercoating.com)
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