Skye,
The hookup in the LH (later ODs for the 4-synchros) which it seems you
have, is like this--OD switch to lockout switch to solenoid. You can
switch the OD on, but until the lockout switch goes on, the solenoid does
not get electricity. The solenoid is in the bottom of the OD, and the
small black wire coming out of the OD is soldered to the solenoid. When
the solenoid is energised, it moves a piston that redirects the oil flow
in the OD and causes the OD to engage.
As I understand what you wrote, the DPO connected switch to the
solenoid without passing through the lockout switch. This is a tempting
shortcut, since access to the lockout switch is difficult. But, it does
risk the OD itself if the OD is engaged accidentally in the lower gears
or reverse.
If you remove the shift lever boot you may be able to see the lockout
switch, in the shadows about five inches down on the left side of the
gearbox. The exact measurement is your finger length plus 3/8 inch. IF
you can get an ohmmeter onto those terminals, you can test the switch. It
should pass current in 3 and 4, or 4 only, depending on the transmission.
Then, if the switch does work, your challenge is to take the lead from
the panel switch to the lockout, and another lead from the lockout to the
solenoid. Easier said than done.
Bob
On Tue, 21 Mar 2000 13:25:55 -0800 Skye Poier <skye@ffwd.com> writes:
> Word on the street is that John H. Reynolds said:
> > Skye,
> > That's not where the solonoid is - you just described the lockout
> switch
>
> Ah ha! That explains a lot. See, I have a 4sync+OD conversion in my
> 66 B
> and I wasn't sure how the PO wired it up.
>
> It appears that the soleniod is always on and they simply wired the
> lockout switch to a rocker switch on the transmission tunnel which
> turns
> the OD on and off.
>
> Does this sound like it would work?
>
> The downside being of course, don't turn the switch on in R/1/2 !!
> I haven't done it yet, its not hard to remember to turn it off since
> I
> only use it on the highway in 4th.
>
> How did the lockout switch originally activate?
>
> I would like to replace the tacky lighted rocker switch they mounted
> on
> the tunnel with the proper "crooked" switch on the dash. Would it
> be OK
> to hard wire the lockout off and put the switch inline with the
> solenoid
> power? What's the "usual" way of wiring up these conversions?
>
> Thanks
> Skye
>
> --
> 1966 MGB - GHN3L Safety Fast! __,__\__
> The MGB Experience http://www.mgb.bc.ca/ (_o____o_)
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