Hi Alan
----- Original Message -----
From: Alan Lemen <alemen@ftconnect.com>
To: Graham Stretch <technical-iwnet@lineone.net>; Huw Upshall
<hupshall@WOLFENET.com>
Cc: List Spitfires <spitfires@autox.team.net>
Sent: Saturday, January 15, 2000 8:42 PM
Subject: Re: j type overdrive relay wiring
> 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?
Havn't a clue then, could be headlight flash relay, probably not if the
colours are correct for o/d though.
Graham
> 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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>
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