Right so Lawrie,
The same counts for fusebox rivet contacts, which start to malfunction.
Cheers,
Hans
----- Original Message -----
From: "Lawrie Alexander" <Lawrie@britcars.com>
To: <mgs@autox.team.net>
Sent: Tuesday, June 08, 2004 4:20 PM
Subject: Re: Overdrive flakiness question
> Just to add a thought to Paul's note......
>
> I once worked on a B which had an overdrive that would not engage. There
was
> power to the gearbox switch and I did a continuity check on the switch and
> it showed the switch to be good. After several hours of changing parts (on
> the assumption the problem was in the overdrive itself) and still having
no
> engagement, I put a voltmeter on the gearbox switch. 12 volts going in, 4
> volts coming out! Enough to show continuity on an ohm-meter but not enough
> to operate the solenoid. I always check switches with a voltmeter now,
> rather than an ohm-meter.....
>
> Lawrie
> British Sportscar Center
>
> ----- Original Message -----
> From: "Paul Hunt" <paul.hunt1@blueyonder.co.uk>
> To: "Tab Julius" <tab@penworks.com>; <mgs@autox.team.net>
> Sent: Tuesday, June 08, 2004 2:10 AM
> Subject: Re: Overdrive flakiness question
>
>
> > You can check the complete electrical continuity from the comfort of
> leaning
> > over the right-hand wing. Find where the yellow/red (or similar) of the
> > gearbox harness joins the white/brown of the main harness near the
fusebox
> > and part the connector. With a test-lamp joining the two it should glow
> > with the ignition on, the gearbox in an OD gear, and the manual switch
on.
> > With any other combination it should be off. With intermittent failure
to
> > engage to can bring the test-lamp inside the cabin and watch it while
you
> > drive. Note that a test-lamp in series will probably stop the OD
working
> at
> > all but at least you will be able to see if you have continuity. What
> might
> > be better is to use an ammeter in place of the test-lamp which will
allow
> > the OD to work as well as watching for continuity. But be aware that
the
> OD
> > circuit is unfused and if your meter or test-lamp wiring floats about
and
> > grounds it can burn the loom. If you have continuity but the OD still
> fails
> > to engage the problem is mechanical or hydraulic.
> >
> > PaulH.
> >
> > ----- Original Message -----
> > From: "Tab Julius" <tab@penworks.com>
> > To: <mgs@autox.team.net>
> > Sent: Saturday, June 05, 2004 10:04 PM
> > Subject: Overdrive flakiness question
> >
> >
> > > The last few trips I've noticed a disconcerting tendency for me to
have
> it
> > > in fourth, put it into overdrive, and have it not respond.
|