Overdrive inhibit switch. An alternative?

[simmit]

Shall be grateful for comments on suitability of this ebay switch to replace faulty existing one. Switch is for use with early two rod gearbox and overdrive:-
http://www.ebay.co.uk/itm/Knurled-Ring- ... Sw4UtWTgIz

[scimjim]

No, it's off/on(1)/on(1+2) so the overdrive could be engaged in reverse. You need off/on(1)/on(2).

[simmit]

No, it's off/on(1)/on(1+2) so the overdrive could be engaged in reverse. You need off/on(1)/on(2).

Thanks Jim.
I assume the on(1+2) connection might be for reverse light plus overdrive. But what if we do not wire in the on(1+2) connections? Then would the switch be simply off/on(1) and the reversing light could be wired independently. After all there is no legal reason the reversing light must come on when reverse is engaged, is there?

[scimjim]

That would work but you may as well use a two position switch in that configuration?

[simmit]

That would work but you may as well use a two position switch in that configuration?

I've not studied movement of the lever that operates the switch but, dependent on gear selected, does it go to one of three positions? If so then a two position switch would break if forced into a third position.

[scimjim]

Yes but fairly easy to modify the lever. Not sure what the basis of this excercise is - personally I just fitted a new switch

[simmit]

Yes but fairly easy to modify the lever. Not sure what the basis of this excercise is - personally I just fitted a new switch

I've been advised the orig. spec. new switch is no longer available. That may not be correct but as QRG and GW are closed for the Xmas break so I can't immediately check. Can you say if there is an orig. spec. switch available and from where?

This exercise for alternative switch is in case no orig. spec. is available or if v. expensive then perhaps find suitable cheaper.

[scimjim]

original spec (remanufactured) is on the shelf at QRG - beware anyone saying bits aren't available until you've asked on here, there's usually someone who knows where bits can be sourced.

[Lukeyboy46]

We'd seen in a GW parts catalogue that they have been striked as NLA is all Jim when Alan popped over today! So that may be my fault! I'd never seem the switch in question before today myself. Everyday is a learning day!

[scimjim]

ah - and what was the date on that parts catalogue?

[Lukeyboy46]

I have no idea! Will look at that tomorrow! :p

Didn't think to check that bit!

As Alan said though, with both suppliers closed for the festive period there is limited information available pleased they have Remanufactured them!

[simmit]

Yes but fairly easy to modify the lever. Not sure what the basis of this excercise is - personally I just fitted a new switch

The switch is fixed to a bracket which in turn is screwed to the top of the gearbox (a pig to get at) and on my car a relay (for switch wiring) is fixed to the same bracket. When you fitted your new switch did you notice same set-up?
I suspect the wiring on my car has been much played with over the years.

[scimjim]

no relay as standard - from inside the engine bay (air filter off) remove the wires from the switch, then the switch with the bracket (2 bolts)

are you sure it's the switch at fault?

[simmit]

no relay as standard - from inside the engine bay (air filter off) remove the wires from the switch, then the switch with the bracket (2 bolts)

are you sure it's the switch at fault?

There may be other problems but the switch is for certain as dead as a stuffed parrot. Further, having just three terminals it has only passing resemblance to the original which has, I believe, four.

[scimjim]

ah - pining for the Fjords