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fitted Bailey dump valve...no big pssshtt!

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Old 07-04-2008, 01:49 PM
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Question fitted Bailey dump valve...no big pssshtt!

ok, the samco t-piece finally came today so, after a monumental struggle with the intake, BBR intercooler and radiator, i popped on the bailey DV26.

works fine at idle, no leaks or anything, but the only way I can get it to vent is by revving the car up to near on the red line in neutral. out on the road going thru the gears I can't hear a thing - well except for the turbo flutter which I thought the DV was supposed to compensate. does it need adjusted and if so how do I do it?

btw, I also have a manual boost controller fitted which has a tiny vent hole too.

Last edited by L111CHT; 07-06-2008 at 05:55 PM.
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Old 07-04-2008, 02:29 PM
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For the BOV signal line, where does that T-fitting go?
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Old 07-04-2008, 02:35 PM
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that's the boost guage tee'd into the same vac line.....
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Old 07-04-2008, 02:38 PM
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...anyone else hungry for a BigMac now?
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Old 07-04-2008, 04:13 PM
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sounds like it needs to be adjusted... need a weaker spring.
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Old 07-05-2008, 01:30 PM
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I highly recommend you zip tie every vacuum line.
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Old 07-05-2008, 01:52 PM
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Originally Posted by L111CHT
the only way I can get it to vent is by revving the car up to near on the red line in neutral.

needs less spring...
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Old 07-05-2008, 03:09 PM
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needs less yellow.
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Old 07-05-2008, 04:50 PM
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Mcembryo's suddenly sounds good for lunch.....
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Old 07-05-2008, 05:44 PM
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Originally Posted by talusfan
Mcembryo's suddenly sounds good for lunch.....
it took me 3-4 years to get over that....now i see it again it'll be another 3-4 years before i eat mickey d's again....thanks
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Old 07-06-2008, 10:34 AM
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Originally Posted by XxGoKoUxX
...now i see it again it'll be another 3-4 years before i eat mickey d's again....thanks
its better for you this way.
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Old 07-06-2008, 02:11 PM
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If it is a twin piston valve either or both of the springs may be too strong. Also, if it has o-rings check that they are sealing, if the upper portion of the valve is leaking bad enough vacuum won't be able to lift the piston.

And if all of that fails try a larger vacuum source.
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Old 07-06-2008, 03:35 PM
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cheers for all the useful replies. got it working now.
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Old 07-06-2008, 06:48 PM
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So what did you change?
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Old 07-07-2008, 01:57 AM
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seconded, what fixed it
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Old 07-07-2008, 05:48 PM
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Took the valve apart and reassembled. secured all the hoses, including the vac, with proper clips, then went out and gave it the beans.
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