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What does this do ?
Macbeast - 8/12/10 at 03:19 PM

Hanging on the side of my ex Sierra Pinto carb. There seem to be two air pipes and an electrical connector.
I can't find it in Mr Haynes.
What does it do ? Is it necessary? What are the electrical connections ?


carb thingy
carb thingy


nick205 - 8/12/10 at 03:25 PM

Is it actually part of or attached to the carb in some way?

Difficult to see in the photo, but it looks like it's not part of the carb, but just hung there because it's convenient?

Does the fuel line run through it?


Macbeast - 8/12/10 at 03:29 PM

No it's just hanging there.
Don't think there is fuel, just vacuum.


Bluemoon - 8/12/10 at 03:40 PM

quote:
Originally posted by Macbeast
No it's just hanging there.
Don't think there is fuel, just vacuum.


It's probably an electrically operated vacuum valve used to switch things in the carb (normally one end the inlet manifold (i.e. vacuum feed) and the other to a diaphragm actuator on the carbs, for say deceleration emission regulations....

Keep meaning to remove mine on the CVH as the actuator in this case stops the throttle completely closing to reduce VOC emissions snag is in a light weight car it goes into "self drive" mode, as there is to much open throttle!!

Dan


nick205 - 8/12/10 at 03:59 PM

What engine/carb is it?

1.6 Emax maybe?

Obvious questions where do the wires go and what happens if you disconnect them?


coozer - 8/12/10 at 04:00 PM

Its a device that sends message to big brother so they know exactly where you are and how fast your going


Guinness - 8/12/10 at 04:34 PM

Flux capacitor?


russbost - 8/12/10 at 06:29 PM

I think you'll find it's an anti run on valve . When you switch ignition off it opens an extra vacuum inlet to the carb thus making the mixture too weak to run on - Fords (& others) had big problems with engines running on in those days, an extreme example I watched keep going for nearly 2 minutes (we were timing it!) until we finally gave up & stalled it!


Canada EH! - 8/12/10 at 06:44 PM

Had one on a 1972 Capri Cologne 2.6, it's a valve that opens on deceleration to weaken the mixture, anti polution device, took it off after warrenty, no ill effects.


Macbeast - 8/12/10 at 07:44 PM

Russ, I think you've got it

But thanks to everybody for the suggestions, particularly the flux capacitor .