Quote:
Originally Posted by SilverSurfer
The forge doesn't have a diaphragm just a spring and an alluminium piston. as mentioned you can get different springs and shims. They used to list a full kit for about a tenner.
It doesn't explain why it does it with a standard valve though. Its as if you have too much vacum on the engine side when the throttle is closed compared to the levels on the intercooler side of the throttle.
Did u check all the intercooler pipes and connections and breathers.
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We was going to do that yesterday but run out of time.
We did say the whole intercooler needs to be popped off and checked underneath as some of the larger pipes look like thay have been over tightened. pinching up somewhere?
The small vacum pipe that comes off the DV does look like hardend plastic and wiggles at the connection. i would personally replace it and i think mart will.