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Joined: Nov 2005
Posts: 584
Smartchild
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OP
Smartchild
Joined: Nov 2005
Posts: 584 |
 i have fitted the dump valve and sounds ok but i have found that it stays open i little bit and this make the revs drop so the dash lights come on. its only for a second and has cut out once which is no good as i have a turbo timer fitted ive looked for leaks and found none and ive changed the vac hose to a better one but still it doesnt close any ideas. 
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Joined: Nov 2003
Posts: 12,002
Wiki Master
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Wiki Master
Joined: Nov 2003
Posts: 12,002 |
Deffo sounds like a Dump Valve leaking problem. What make is it? Is it a piston type? Maybe try a stiffer spring / streach the spring in it already 
What If There Were No Hypothetical Questions?
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Joined: Nov 2005
Posts: 584
Smartchild
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OP
Smartchild
Joined: Nov 2005
Posts: 584 |
sorry dont know the make (piston type)
i have put the stiffer spring into the unit and still the same i have noticed that the rubber O ring makes a tight fit would it help if i greesed up the O ring?
there are two O rings one at the base and one half the way up.
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Joined: Nov 2003
Posts: 12,002
Wiki Master
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Wiki Master
Joined: Nov 2003
Posts: 12,002 |
Kinda kard to tell from the pic in you MMC topic what type of valve it is, but theres a good chance it may not be the right type for the car and hence your getting an air leak causing the low idle problem 
What If There Were No Hypothetical Questions?
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