Barry H. Adams wrote:
>
> Charlie:
>
> This afternoon I had just finished changing the oil on my 74 Spitfire and was
>sitting there admiring my work, when all of a sudden the starter began turning
>over on its own. Fortunately, I had the neg. battery cable loose and I pulled
>it
immediately. The problem is that when all wires are connected the starter turns
over regardless of rather on not the key is
on or off. I have performed the following checks:
Checked the starter switch (W/O) wire which runs to the starter relay for
continuity and power. Continuity is good and wire only has power when the
starter switch is in the start position.
Check the starter solenoid it pops/clicks when voltage is applied to it.
Checked continuity of WR wire running from the starter relay to the
solenoid. Its good.
Barry,
The white/orange wire supplies voltage, while starting, to the
seatbelt/ignition warning buzzer. This should not be the wire
supplying starting voltage to the starter solenoid.
> Check the starter solenoid it pops/clicks when voltage is applied to it.
Where are you getting the "starting" voltage? From an external jumper?
> Checked continuity of WR wire running from the starter relay to the
> solenoid. Its good.
>
> Noted there is a constant voltage being supplied to this WR wire across the
>relay regardless of rather or not the WO wire from the starter switch is
>connected to the relay. This voltage is coming to the relay via a large brown
>wire from the
alternator (I think). Since the WR wire has constant voltage being supplied to
it across the relay it is constantly
activating the starter solenoid.>
This sounds like your problem. The white/red wire is the wire running from the
starter switch (assuming nothing has been
swapped-out) that's supposed to activate the solenoid. If its constantly hot,
the starter is going to keep cranking.
Disconnect the white/red at the solenoid, re-attach the battery cable, and
operate the ignition switch. The 12 volts at that
wire's spade connector should go on and off with the "start" position of the
switch.
Any solid brown wire, at the solenoid, should be connected to the top threaded
post (bottom post goes to the starter motor).
These brown wires sould be either coming from the alternator, or going to the
wiring harness as the car's power supply
(branching to switched and un-swithched). This terminal, by the sheer fact it's
attached directly to the battery, is always
hot.
I sounds to me the ignition switch has gone sour (not turning off the power to
the white/red wire) or something has been
rewired, bypassing the starting position on the switch. Was it you who had the
problem with the turn signal/hazard flasher
system? Is it possible something has been mis-wired?
Hope that helps,
Charlie B.
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