Bill,
I am assuming your car has a full synchro 3-rail gearbox. I think the previous
emailer was assuming that you were referring to a
single rail gearbox.
The following refers to the full synchro 3-rail:
Non-OD gearboxes have a switch that controls the backup lights. The switch is
located under the shifter linkage at the back of the top
cover. This switch is identical to the one used on the single rail to control
the overdrive gear selcection (to keep it from going
into OD when in 1st or 2nd gear).
When there is an overdrive added to the 3 rail gearbox, the gear selector
switch is an add-on that is actuated by the gear select rail
where it goes through the front of the gear selector assembly.
Regards,
Joe
BillG wrote:
>
> Patrick;
>
> The car never had OD, so it shouldn't have an OD lockout switch (should it?)
> It's been suggested that the switch at the front of the linkage is a neutral
> start switch. If it is, it doesn't work. Don't ask how I know. It just
> seems weird to have 2 switches.
>
> Bill
>
> -----Original Message-----
> From: Bowen, Patrick [mailto:pbowen@intellinetics.com]
> Sent: Friday, September 01, 2000 10:15 AM
> To: 'BillG'; Spitlist
> Subject: RE: Transmission switches
>
> Bill, the switch underneath the shifter is for your reverse lights. The
> switch mounted forward on the OD is the overdrive lockout switch. It keeps
> you from engaging overdrive in 1st and 2nd. Which is supposed to be bad for
> the overdrive, opinions on this vary, but I am sure it was there for a
> reason. They both wire into the same harness as your backing lights circuit
> provides the power to the overdrives solenoid.
>
> Patrick Bowen
>
> -----Original Message-----
> From: BillG [mailto:wrgingerich@uswest.net]
> Sent: Friday, September 01, 2000 10:32 AM
> To: Spitlist
> Subject: Transmission switches
>
> Greetings, fellow listers!
>
> The discussion of OD switches, etc. has reminded me of something I've been
> meaning to ask for a while. My '74 Spit is non OD, and it has 2 switches
> mounted on the gearbox. One is on the top rear, just under the shift
> linkage housing. The other is on the top front near the front of the
> linkage housing. Both switches have a pair of wires that run into the
> harness. Now, 2 reverse lamp switches seems a bit redundant even for Lucas.
> None of my books show both switches. I'm not sure if the gearbox is
> original as it has a FK number. This car was built in Belgium so maybe FK
> is normal. So, which one (the rear one?) is the reverse lamp switch, and
> what is the other one for?
>
> BillG
> 1FM13696IU
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