Huw, Graham, many thanks for the answers. That at least explains the circuit
diagrams.
So what is the relay next to the horn relay on the firewall?
See haynes manual page 222 section 15 and the illustration. Similarly the Bently
page 487 section 86.55.04.
It is all wired up just like the illustrations!
Also the reference to the seatbelt interlock is in the Bentley page 489 section
86.57.00.
Not having had a US model before I was wondering. UK models were so much easier
to do especially at the same period complete lack of the emmisions stuff and
twin SU. Oh teh memoies of balancing the carbs.
Alan
Graham Stretch wrote:
> Hi Alan
> With respect to the overdrive relay for the J type O/D to the best of my
> knowledge their isn't one, at least not on all the British cars I have owned
> or maintained that have O/D. The relay was fitted due to the large current
> drawn by the A type solenoid, the J type on the other hand consumes
> significantly less current as it has a throw winding and a hold winding. the
> throw current is low (5A)* and short duration and the hold current is lower
> still. The relay was omitted from the circuit as the switch was considered
> not to be at risk of damage. If you however wish to protect your switch
> further you could fit the relay, the wiring diagram for the A type system
> should be adequate.
> *The (5A) is what I seem to have heard somewhere and may not be accurate,
> the reason is correct.
> Sorry no idea about seatbelt interlock or what it is please enlighten me
> somebody. Oooh sudden craving for knowledge.
>
> Graham
>
> ----- Original Message -----
> From: <alemen@pop.ftconnect.com>
> To: <spitfires@autox.team.net>
> Sent: Friday, January 14, 2000 9:37 PM
> Subject: j type overdrive relay wiring
>
> >
> > Does any one have the wiring diagram for this so I can check it out.
> >
> > All the Haynes and Bentley manuals have is the 2 switches in series in the
> schematics, but they both refer to the relay mounted on the firewall next to
> the horn relay, even to the point of having pictures. Am I missing something
> here?
> >
> > I am now working on electrics and am trying to check them all out.
> >
> > Also can anyone confirm or otherwise that the 76 has the seatbelt
> interlock.
> >
> > Alan
> >
> >
> >
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