In a message dated 1/10/98 6:34:30 PM Eastern Standard Time, bollen@ibm.net
writes:
> Mostly there's no problem, following the 75-76 wiring diagram for my 74
> made in Oct 73! But I ran into a meltdown of one wire on the top relay
> on the fender wall. I have two relays mounted on either side of a
> flange, so the lower is actually upside down. I believe the lower is a
> horn relay, and the pinkish wires I believe go to that according to the
> book. However I cannot find reference to the top one in any of the
> wiring diagrams. Is it for the overdrive? The wires are all a beige
> color with and without stripes, I melted the thinnest one with a yellow
> stripe on it. Could some kind person with a J overdrive take a peek and
> try to explain where the wires go, or call me collect at 302-234-9580.
Stu,
If I'm not mistaken, the top relay is for the starter. The beige wires you
have are probably brown wires that have faded with time. The wire you melted
is most likely the white/yellow wire to the ignition coil, the white becoming
beige with age. There should also be a white/red wire, which goes to the
starter, and a white/orange wire, which comes from the seatbelt interlock. All
this is shown on the schematic for the '75 (the '76 schematic is in error
around this relay, and can't be relied on).
Anyway, a horn relay has purple, purple/black, and purple/yellow wires. An
Overdrive relay, if you have one, has white, brown, yellow/purple, and
yellow/green wires.
If the beige wires have 12 volts on them at all times, key on or off, then
they are really brown wires. Check the "melted" wire with an ohmmeter to see
if it really does go to the coil.
Dan Masters,
Alcoa, TN
'71 TR6---------3000mile/year driver, fully restored
'71 TR6---------undergoing full restoration and Ford 5.0 V8 insertion - see:
http://www.sky.net/~boballen/mg/Masters/
'74 MGBGT---3000mile/year driver, original condition, slated for a V8 soon!
'68 MGBGT---organ donor for the '74
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