Amir khan Posted May 16, 2008 Share Posted May 16, 2008 Hi all. heres the situation. This is a pic of my engine bay: The problem i am having is that air is constantly coming out of the small holes on the dump valve (small holes on the gold plate in pic) At the same time there is a slight ticking sound coming from the RHS of the engine (facing engine) When i fold the blue pipe going to the dv the ticking stops, air stops coming out of the holes and the engine idles lower. does this sound normal? or do i have a problem My dv also makes about 3 different kinds of noise which i didnt think they were suppose to. One at low revs, at about 3-4rpm a fluttering sound and a different like woosh when flooring it. Any input would be great thanks! Quote Link to comment Share on other sites More sharing options...
TurboBrett Posted May 16, 2008 Share Posted May 16, 2008 (edited) The problem i am having is that air is constantly coming out of the small holes on the dump valve (small holes on the gold plate in pic) this it a typical problem with this type of dump valve, the only way around it that i know of is a stronger spring, but this has knock-on affects that are not always good At the same time there is a slight ticking sound coming from the RHS of the engine (facing engine) this could be the fuel injectors they tick faster (or correctly louder) as the revs increase When i fold the blue pipe going to the dv the ticking stops, air stops coming out of the holes and the engine idles lower. an air leak sounds like it could be the diaphragm(sp?) in the dump valve has a split (also common to these valves im afraid:() does this sound normal? or do i have a problem My dv also makes about 3 different kinds of noise which i didnt think they were suppose to. One at low revs, at about 3-4rpm a fluttering sound and a different like woosh when flooring it. Any input would be great thanks! i think you have a dodgy dump valve there mate, the differing sound will be because of the leaky diaphragm in the dump valve, it cant open the valve far enough at lower boost, and the wooosh would be roughly what it sounds like EDIT: take the dumpvalve off and blow in the bigger end should be the 20mm input, you should not be able to blow through, then suck on the vacuum connection (i sooo wanted to say nipple ) again you should not be able to suck any air through, maybe a little but then nothing, i recon you will be able to suck through continuously, hope this is of help to you;) Edited May 16, 2008 by TurboBrett (see edit history) Quote Link to comment Share on other sites More sharing options...
TurboBrett Posted May 16, 2008 Share Posted May 16, 2008 also welcome to the club;) Quote Link to comment Share on other sites More sharing options...
Amir khan Posted May 17, 2008 Author Share Posted May 17, 2008 wow thats sum wkd input, thanks for the welcome, You will definatly see me posting alot more. Il do those check tommorw in between coats of paint on my dash Quote Link to comment Share on other sites More sharing options...
Pig Posted May 17, 2008 Share Posted May 17, 2008 Good effort turbo brett. Quote Link to comment Share on other sites More sharing options...
TurboBrett Posted May 17, 2008 Share Posted May 17, 2008 Quote Link to comment Share on other sites More sharing options...
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