I too had a similarish problem; my '6 would run ok (apart from a flat spot
in acceleration - more later) during the day, but at night the damn thing
(I hope it's not listening) would cough and splutter. After stripping the
alternator, charging the battery (several times to bring it up to correct
charge), getting it professionally tuned etc, I tracked the problem to
the ammeter (only after I shorted something out & blew the ammeter
up). The oil pressure gauge had, at some time prior to my ownership of
the car, sprayed oil all over the back of the dash & also got into the
contacts at the back of the ammeter. This, combined with all the other
gunk that seems attracted to oil & backs of dashes reduced the
conductivity of the contacts to produce the coughing and spluttering
with the lights on (ie higher current draw). I only worked this out after
getting crap all over my hands shorting out the three leads at the back
of the ammeter & deciding to clean up the terminals so I could drive
the car.
My '6 does, however, still have a flat spot in acceleration, which according
to the pros I took it to is caused by the fuel metering unit (they adjusted
the timing, checked fuel pressure, injectors, etc, but it still has the flat
spot). By the look of the exhaust pipe, and the spark plugs it's running
quite rich (I was hoping they'd be able to correct this, but they have to
farm out the metering units work to someone else because of lack of
equipment, even though they are a specialist Triumph garage). Apparently
the place that can re-adjust + recondition the metering unit (they only
know of one place that does that here in Adelaide, Aust.) charges
approximately $500 (Australian), so I guess I'll have to wait for that (I
don't particularly want to try it myself even though I'm not completely
inept).
I guess the upshot of all this is that missing can be caused by a number
of things...
Hope this helps,
Frank Biedermann
frank@ssabsa.sa.gov.au
1969 TR6.
On Tuesday, August 04, 1998 9:08 AM, Sumner Weisman [SMTP:sweisman@gis.net]
wrote:
>
> Ed,
>
> It could be bad ignition wires. I had to replace mine recently and the
> symptom was intermittent misfiring. Then again, it might not be the
> electrical system at all. I had one car that behaved similarly when under
> load or going up a hill, and it turned out to be the fuel pump. Just a
> thought or two...
>
> Sumner Weisman
> 62 TR-3B
<-Snip->
|