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gogetta
Fordmods - Getting Side Ways
Posts: 2556
Joined: 27 Dec 2004
Location: melbourne, sunshine VIC, Australia
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 Posted: Mon Apr 09, 2007 1:56 am Post subject: |
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| so the vacume is created by some sort of venturi effect through the mixer? |
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gogetta
Fordmods - Getting Side Ways
Posts: 2556
Joined: 27 Dec 2004
Location: melbourne, sunshine VIC, Australia
View User Gallery (3)
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| Posted: Mon Apr 09, 2007 1:59 am Post subject: |
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| EBGizmo wrote: | The orrifice is there to release the vacuum to the converter when the FCV is off. If you have a 3 way FCV, this may not be necessary. If it was not present on a 2 way FCV, the vacuum would just keep building up and keep the converter lean.
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this "orrifice" is that the dump valve? and also "the vacume building up" is that only when the FCV is closed? which side of the fcv would the vacume build up? converter yeh? |
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EBGizmo
Technical Contributor
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Location: Brisbane QLD, Australia
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| Posted: Mon Apr 09, 2007 2:16 am Post subject: |
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The dump valve is seperate from the orrifice.
Follow this diagram and you can't go wrong. |
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EBGizmo
Technical Contributor
Posts: 691
Joined: 01 Jun 2005
Location: Brisbane QLD, Australia
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| Posted: Mon Apr 09, 2007 2:25 am Post subject: |
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BTW, there is no dump valve in that pic, as it is optional to improve acceleration response.
If there was a dump valve, it would go between the FCV and the converter T piece. This would allow air into the tube if vacuum became too great from abrupt throttle movements.
The orrifice is just a small cylinder of metal with a hole drilled in the centre of it. |
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