Installation of Recirculating Dump Valve (Bailey DV30)

[paulwatkins]

EDIT.
I have changed the heading of this thread to illustrate the installation of my Bailey DV30 Recirculating Dump Valve.


Guys,
I've just won 2 dump valves on fleabay.

One is a 'to atmosphere' type which was an OE on an Escort Cosworth.

The other is a 'recirc' type which was an OE on a Mitsubishi Lancer Evo 7.

I would prefer to use the recirc one, but initially my question is:

would either of them be suitable for installation in an Elan?

If not, I'll re-list them!

Cheers, Paul

[dapinky]

Paul,

Depending on what make you have got, i can only advise on Baileys (I've got the DV24, but others have gone for the DV30 (recirculating) - hopefully no-one on here has a DV34 (Only joking - to all you Nova/Saxo/etc owners with loud dump valves )

According to Baileys web site click here, the Cosworth uses a DV24, (which is the one listed for an elan) so that will be okay - if you want an 'exhaust to atmosphere' type.

If you want a re-circulating one, you need the DV30.

The EVO uses a different design DV26 (twin piston) for a different turbo instalation, so will not be suitable (as far as i can tell )

[DeeAitch]

You will need to check the pressure at which it dumps, especially if you are running boost above OE level

[paulwatkins]

I abborted the plan to use either of the dump valves I mentioned in a previous post! I got my self a DV30 recirculating valve and installed it today.

Credit has to go to Neil (Enright13) for his plumbing hardware suggestions, that I used to install it.

I used:
A brass water tank connector with rubber washers.
A short section of 25mm ID auto water hose.
A length of 8mm fuel hose to connect to the intake plenum
A wash-hand basin overflow connector (to connect to the air box)
A length of washing machine outlet hose
A few s/s jubilee clips

[John_W]

Paul,
Well done. Looks like a very neat and inexpensive installation. However your valve doesn't look like my Bailey DV30. Is it a Bailey? Have they changed the design?
John

[paulwatkins]

John,
I was a bit confused by this too!

It's got 'forge' etched on the head of the valve, but the packaging says Baileys Motorsport, and the part number says BAIDV30.

I bought it off a chap on ebay, it was brand new (unused) bu tmaybe he had had it for a while?!?!

Anyway, it appears to be working fine.

Paul

[Enright]

Hehehe, love it - especially the waste overflow.
Should have left the chain and plug in there!
Seriously: VERY tidy. And another great "how to" guide.

[John_W]

Paul,
What you have is a Forge FMDV006, which is good.
See here: which is good,
and here (also good);
and here (not so good).
John

[Candles]

Apologies for resurrecting this thread:

I've had a DV30 for about 6 years. The first one I had got nicked (long story) and the second is sat on my workbench right now. The problem is that last summer it stuck open once, requiring rebuilding with a teflon grease, and now it simply sticks open every time I install it, no matter what I do.

Do I need to sand down the piston? Why has this started? Do other makes do this?

Candles.

[Rice crispy]

I'm about to get a DV30 from Steve A on here and was looking for some advise on fitting it ? The thread says there are some pics but they aren't here anymore ? can anyone help or is it worth getting an ebay fitting kit ?

Thanks

David

[kenich]

Think I saved some pics from an old thread... il post pics of mine this week if I get chance to. No need for that ebay kit, probs cheaper to buy your own bits I guess?

[Rice crispy]

Kenich,
Many thanks hope it's simple to do
David

[Rice crispy]

Well fitted the valve chavtastic have not plumbed it into the air box yet as I can't seem to find any kit to do this? Also is it correct that it whistles as the boost builds ? It stops once it gets to .5 bar (I have an everest chip) and goes up to about .75bar as it did before only the gauge reading so incorrect most probably

Any advise where I can get fittings fit the air box ( been to b&q , rob dyas)
David

[kenich]

I don't get a whistle no. Kinda get a noise as the boost gets higher, though thats more a sound of high speed moving air. I did get a nasty whistling sound when I use a corrugated pipe to vent the valve to the airbox as a temp fix though. Now its a silicone pipe to the filter the whistle has gone. Its loud when not vented back into the system, its very quiet when fully recirulating though. Untill you up the boost and then the valve gets a bit louder. Even louder again when using an open filter/induction kit of somekind.

This is a pic I found on here of someones routing...



Uploaded with ImageShack.us

[Rice crispy]

Cheers kenich looks like I've fitted mine wrong !! As I have put the tube from the bottom onto the pipe from the plenum will swap that round as well. Looks like it's a overflow fitting to the airbox ? Can't seem to find any in black and right size round my way

Just found these does anyone think the 25mm one will work on the air box to connect the outlet ?
https://www.europaspares.com/prod.asp?p ... imgstate=2

[kenich]

On the Forge DP007 which I use they can be fitted either way round, so yours might not be wrong (I am sur the Bailey / forge items are pretty much the same) . On the the VAG 20vT engines a lot of people reverse fit it like yours as you get a slightly different noise when dumping, which when the engine is stock is more noticable.

[kenich]

Just found these does anyone think the 25mm one will work on the air box to connect the outlet ?
https://www.europaspares.com/prod.asp?p ... imgstate=2

uhmm.. the airbox is slightly round so it might not fit / seal perfect, looks good though. Bit pricey mind lol

[Rice crispy]

Well decided to order the link as I still can't find a plumbing fitting the right size will report back when I get it . Also swapped the valve round this morning but not tried it as it's raining
David

[Enright]

Cheers kenich looks like I've fitted mine wrong !! As I have put the tube from the bottom onto the pipe from the plenum will swap that round as well. Looks like it's a overflow fitting to the airbox ? Can't seem to find any in black and right size round my way

That was a pic of my engine bay after my first attempt, before I bought a metal intake pipe (see here: viewtopic.php?f=31&t=10694&p=158178&hilit=bailey#p158178).
However while the intake side has since been tidied up, the exhaust recirculation part of it has never changed. It was indeed a sink/washbasin overflow mounted from inside the air filter housing, which I got from B&Q. It doesn't matter that the surface was slightly curved instead of flat, as the plastic had enough flex in it to accommodate it anyway.

[Rice crispy]

Adaptor and hose turned today just need rain to stop to fit it it also come with a punch to put holes in hoses (no good for me) will report back
David