All Things Mk5 > Performance Modifications
Removing a forge dump valve.
rickyquicky:
Can anyone give me some advice on removing a dump valve that came with my car?
It is an edition 30 so the dump valve is at the front of the engine with easy access.
Problem I have is that I have bought a revision G diverter valve to replace the forge dump valve that is currently fitted.
I can see where the new diverter valve fits, but the problem is that this forge DV has got 2 narrow pipes coming out of it that clearly will not go into the diverter valve.
What do I do with these pipes after diverter valve is back on?
GTI-Pirelli:
Not sure why you would want to replace a Forge DV with a revision G VW one. I did the opposite because it doesn't hold boost WOT.
Anyway:
Remove the engine cover.
There are 2 pipes that go from the DV to the actuator, then an additional pipe that goes from the actuator to a T connector on the vacuum line. Remove the T connector and reconnect the vacuum line.
Remove the wire that links the actuator to the VW harness then plug the harness into your Rev G diverter once it is bolted in place.
Easy peasey. :happy2:
rickyquicky:
Hi mate, thanks for the info.
I want to replace it as I don't like the sound of dump valves. It's quite a loud one and I would rather a standard recirculating type anyway.
Markyed30:
Does it not have a spacer fitted then ?
GTI-Pirelli:
What he said ^.
If it is making a whoosh sound when you let off the throttle, it more than likely has a spacer in it. The Forge diverter works along the same lines as the VW part but is just stronger so doesn't vent to atmosphere unless the venting spacer is fitted.
Remove the body of the DV and there should be a piece in between the DV and the mount. Take that out and then remount the DV. The issue you will have is that the bolts will be too long to fit either the Forge or the VW DV.
If you have the spacer then I can see why you want it off. It sounds a bit pants (sounds more like an air leak on these engines) and supposedly saps power (or so I have read).
This is the sound the spacer makes:
This is what it looks like (fits under the diverter valve):
http://www.forgemotorsport.com/content.asp?inc=product&cat=&product=FMDV14T
Hope this helps.
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