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Author Topic: Forge DV servicing  (Read 3945 times)

Offline barelyrelevant

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Forge DV servicing
« on: November 26, 2016, 05:58:55 pm »
Has anyone serviced their Forge diverter valve before?

I've just bought a GTI which is down on boost and after having a look this afternoon I found it has a Forge one fitted, in the long term I will probably change to a rev G but whilst I have the car off the road I might as well service it as I read a lot of stuff online about how they need re-greasing?

I've not taken it apart yet is it just a case of re-greasing everything with high temp grease or similar?

Offline r5gtt

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Re: Forge DV servicing
« Reply #1 on: November 26, 2016, 09:18:41 pm »
I'd recommend this for what it's worth and it's a fit and forget part too.


Offline Paradox1

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Re: Forge DV servicing
« Reply #2 on: November 28, 2016, 10:19:56 am »
Which type do you have?

isit the forge DV with the wiring solenoid or the forge spacer(noise maker)

Offline gtininja

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Re: Forge DV servicing
« Reply #3 on: November 28, 2016, 03:18:02 pm »
I've got the forge Dv with spacer and never serviced it and boosting fine but would like to remove the spacer. You find anymore info on servicing forge dv Paradox1?


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Offline Paradox1

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Re: Forge DV servicing
« Reply #4 on: November 28, 2016, 03:23:33 pm »
Yeha the spacer isnt good for performance. its supposed to be like having a massive boost leak although ive never used one.

Forge sell the servicing kit for £15 I think.

Comes with the grease, a few O rings and I think difference rated springs depending on what level of tune/ PSI you are running.

Offline gtininja

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Re: Forge DV servicing
« Reply #5 on: November 28, 2016, 08:58:34 pm »
Yeha the spacer isnt good for performance. its supposed to be like having a massive boost leak although ive never used one.

Forge sell the servicing kit for £15 I think.

Comes with the grease, a few O rings and I think difference rated springs depending on what level of tune/ PSI you are running.

I haven't got any boost leaks but will be changing DV.

Thanks for the info Paradox1


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Offline barelyrelevant

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Re: Forge DV servicing
« Reply #6 on: November 28, 2016, 09:26:50 pm »


Mine looks like this, so the full DV kit with solenoid which runs off vacuum in the inlet manifold. No spacer, thankfully!

Offline Paradox1

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Re: Forge DV servicing
« Reply #7 on: November 29, 2016, 09:13:58 am »
Im currently running OEM DV, but im going to probably give the above DV a try as I got it for next to nothing. Just need the solenoid for it then I can install it to test.

If you do get a leak its more than likely the o ring seals that have perished.
Everyone on here says they are sh1t but i bet you half of the people who comment on them have never used one. we both have one, why not see for ourselves.. :happy2:

Offline r5gtt

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Re: Forge DV servicing
« Reply #8 on: November 29, 2016, 04:37:47 pm »
Im currently running OEM DV, but im going to probably give the above DV a try as I got it for next to nothing. Just need the solenoid for it then I can install it to test.

If you do get a leak its more than likely the o ring seals that have perished.
Everyone on here says they are sh1t but i bet you half of the people who comment on them have never used one. we both have one, why not see for ourselves.. :happy2:
smart arse  :slap: they're prone to leaking as been tested umpteen times but yeah most likely the O ring has deteriorated and causing the leak but again why f around with shi* goods when you can by a GFB and never need to worry about that again  :thinking:

Offline Paradox1

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Re: Forge DV servicing
« Reply #9 on: November 29, 2016, 04:40:56 pm »
Im currently running OEM DV, but im going to probably give the above DV a try as I got it for next to nothing. Just need the solenoid for it then I can install it to test.

If you do get a leak its more than likely the o ring seals that have perished.
Everyone on here says they are sh1t but i bet you half of the people who comment on them have never used one. we both have one, why not see for ourselves.. :happy2:
smart arse  :slap: they're prone to leaking as been tested umpteen times but yeah most likely the O ring has deteriorated and causing the leak but again why f around with shi* goods when you can by a GFB and never need to worry about that again  :thinking:

Cos im not a sheep and I like to be different. everyone have s GFB+ Dv. your telling me its the ONLY dv solution that work on these Engines??

Offline r5gtt

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Re: Forge DV servicing
« Reply #10 on: November 29, 2016, 05:05:54 pm »
Im currently running OEM DV, but im going to probably give the above DV a try as I got it for next to nothing. Just need the solenoid for it then I can install it to test.

If you do get a leak its more than likely the o ring seals that have perished.
Everyone on here says they are sh1t but i bet you half of the people who comment on them have never used one. we both have one, why not see for ourselves.. :happy2:
smart arse  :slap: they're prone to leaking as been tested umpteen times but yeah most likely the O ring has deteriorated and causing the leak but again why f around with shi* goods when you can by a GFB and never need to worry about that again  :thinking:

Cos im not a sheep and I like to be different. everyone have s GFB+ Dv. your telling me its the ONLY dv solution that work on these Engines??
I followed my own intuition and many asked me about it so thanks for asking and further to your insult regarding sheep I'll repeat the GFB is fit and forget  :angry015:  :P

Offline barelyrelevant

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Re: Forge DV servicing
« Reply #11 on: November 29, 2016, 06:39:06 pm »
I'm getting a rev G fitted tomorrow so i'll let you know the difference.

I don't know if this is related to the Forge DV but mine is very 'fluttery' when lifting off. If I understand correctly (and I probably don't  :pomppomp:) this could be caused by the Forge DV being slow to shut off due to it being manually controlled by a ~1.5m vacuum hose rather than the OE ones which are electronically controlled by the ECU?

Offline Paradox1

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Re: Forge DV servicing
« Reply #12 on: November 30, 2016, 09:35:14 am »
Im not sure if its the hose that causes it. even the Rev G flutters on some cars

Offline barelyrelevant

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Re: Forge DV servicing
« Reply #13 on: November 30, 2016, 12:14:07 pm »
Yeah, but I think the design of the Forge makes more flutter than the OE designs.