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-   -   Deceleration Valve defective? (http://forums.pelicanparts.com/porsche-911-technical-forum/297140-deceleration-valve-defective.html)

safe 08-05-2006 07:56 AM

Deceleration Valve defective?
 
Hi
My idle is way to high, ~18-2000 rpm.

If I squeeze the top vacuum hose together the idle drops to a more normal rpm.
With that description is it safe to say that its kaputt?

http://forums.pelicanparts.com/uploa...1154793184.jpg

Its kind of expensive, I guess I can live without it. If I remove it I should plug all vacuum hoses right?

stlrj 08-05-2006 09:37 AM

Guess what, it's adjustable! Back off the locknut and turn in the stem clockwise to increase the spring tension against the diaphram 'til you get it to idle.

safe 08-05-2006 10:37 AM

I'll try that.
I read about it but I thought it only controlled the rpm it held for a few seconds.

safe 08-21-2006 07:41 AM

Adjusted it and it now workes fine!
I have to remove it and put it in a vice to break the lock nut free.

stlrj 08-21-2006 07:58 AM

Quote:

Its kind of expensive,
Glad you were able to save a few bucks ( or whatever they are in Sweden).

Joe

safe 08-21-2006 08:04 AM

Actually I'm not sure the "adjusting" fixed the problem.

It is adjusable, the revs and time changed when I turned stem, but when have broken loose the lock nut and reinstalled it the problem was gone. I guess it just needed a good spanking ;)


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