Simon:
I think your problem is still in the adjustment of the throttle switch.
You can verify this without running the car of touching the switch.
With the ignition switch on, switch the overdrive switch on. Don't touch
the gas pedal yet. Move the shift lever back and forth left to right several
times while in neutral....you should hear the OD solenoid click in and out.
Now turn the OD switch to the off position, key still on. Again move the
shift lever back and forth left to right several times while in
neutral....you should still hear the OD solenoid click in and out. Now,
with the shift lever in the third or fouth gear position, slowly depress the
gas pedal. The solenoid should drop out about 1/5 throttle. You have to
listen very carefully to hear this. Depress the gas pedal to the floor, and
release. Moving the shift lever now should not cause the solenoid to
operate. If your system does not respond as described above, then you need
to adjust the switch (if, as you say, the rest of the system is functioning
properly), following the instructions in section G12 of the 6 cyl shop
manual.
Jim
----- Original Message -----
From: "Simon Lachlan" <simon.lachlan@homecall.co.uk>
To: "'Healey List'" <healeys@autox.team.net>
Sent: Friday, January 19, 2007 11:52 AM
Subject: Annaul overdrive snafu
> Hi,
>
> Overdrive continues to drive me mad.
>
> Symptoms remain as previously reported:-
>
> I can hear solenoid as soon as I depress throttle and again when I lift
off.
>
> Relay bench tests OK.
>
> Solenoid clunks nicely and od engages OK on road.
>
> Wiring has not been tampered with and looks fine. In-line fuse not
blowing.
>
> Switch on dash is OK.
>
> 3rd/4th switch seems OK.checks out per manual and I can hear od
> engaging/disengaging as I move gear lever.
>
> Actual od unit is fine and has plenty of the correct clean oil. (We
won't
> discuss which is the preferred oil.)
>
>
>
> Suspect continues to be throttle switch, but I've been down that alley
> before. Whenever I blame that switch it turns out to be something else.
>
>
>
> If I take the b****y throttle switch apart, it looks OK and it seems to
> function OK. But I would say that it's maybe a bit quick to
> engage/disengage. That's to say that the slightest movement of the lever
> breaks the continuity. It seems a bit trigger happy to me. What are the
nuts
> and bolts symptoms of a dead throttle switch? Which bit gives up where
> leading to what happening where?
>
>
>
> Don't want to resort to my wallet and throw bits at this thing until it
> goes away. Done that in the past and it a)costs a lot & b) does not
teach me
> what went wrong and ghow to be alert for it in the future.
>
>
>
> Simon.
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