Mark,
Sounds like you've got a bit of a mess going. At the risk of helping you
start another fire I'm afraid it would be impossible, (for me anyway),
to provide any sort of quick fix assistance based on the info given.
Luckily the TR-6 wiring loom is incredibly simple. Meaning there is
actually very little wire, and not that many connections.
If you feel confident in your ability to straighten this out, then I
suggest a complete inspection of the loom per the schematic in Robert
Bentley's manual...or one of the other popular TR-6 wiring manuals.
A complete removal and inspection of the loom, (unwrap it), may take a
couple of days, but it's worth it!
The confidence when finished is priceless and it really isn't
technically difficult.
Most high performance shops have high quality loom wrap, (cheap), that
can be used to re-wrap the wires thereby putting the loom back good as
new. Buy good quality electrical tape, and use heat shrink, (marine
grade), on any connectors that you can get to.
Best regards,
Jim Swarthout
-----Original Message-----
Subject: Ignition wiring problem
Can anyone help with this ignition wiring diagnosis. The car is new to
me as
are Triumphs in general
I think the DPO wired a new ignition switch incorrectly. It was spliced
into
the other connectors. The car is a 73 but I beleive that the wiring loom
is
later as is the 6 pin ignition switch. I had sporadic problems with the
ignition simply failing to engage so I 'fixed' the ignition connections
i.e.
redid the connectors pretty professionally, took it for a spin and the
ignition loom caught fire in a fit of pique. Not as bad as it sounds
actually
and also it turns out that it was completely unrelated to my work ,
although
there was a moment.....
Seems the "START" wire from the ignition switch goes somewhere arcane
but it
still works. The red/white BIG wire which should go to the starter
solenoid
was connected to the AUX/ Radio connection on the ignition and the other
end
was loose near the starter. This wire has a big female connector on it
which
fits the large spade terminal on the starter. I have NO IDEA what this
is
supposed to acheive as it looks to be connected directly to the battery
IN
terminal. I think the R/W wire grounded when I was driving and welding
commenced.
Damage only to the ignition switch wires so I need a new one but it all
still
works somehow. I removed the now defunct wire from the switch and looked
further. The START wire goes to a bridge connection to a seemingly white
wire
which goes off in two directions. There is a yellow and white wire (I
think)
at the Starter on the smaller of the two spade terminals and I am
guessing
that it end up here. I have not traced it yet.
I have NO IDEA how the car starts as it shouldnt but it does and it runs
fine.
Maybe there is a relay somewhere but the wires look awfully small......
Can anyone diagnose this for me . I can rewire the switch back to the
way it
is now pretty professionally but I would dearly like to know::
1/ how the starter is starting and
2/ is the wiring correct as it looks as if the wrong wire is probably
carrying
way too much current.
It really doesnt need a new loom as the wires in the main are in very
good
shape. I need a TR wiring expert who knows what should be where so I
can put
it back that way.
I think I have figured out most if not all of the loom, just need a
cross
check.
p.s. I think the radio wire went to the heater as well and the heater
wire was
re-routed to a cigarette lighter........(Im sure this contravenes the
Strategic Arms Limitation Treaty) so I have little faith in any other
reworks
or splices that I see.
Many thanks for any thoughts.
Mark Chapman
73 TR6
67 XKE S1
60 MKII
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