What physically is modified for the CDV?

M3to335 · 12-02-2007, 08:21 PM

I realize what a modified CDV is doing, but what are the vendors physically doing to "modify it". If its something I can do in the machine shop, id like to do that instead of buying another one.

I heard its just poking out the valve

ltdorn · 12-19-2007, 06:23 PM

i just modded mine. What a cheesy easy thing to do.....

On the 2006 330I version (plastic), there is a small metal orrifice that needs to be removed. If you look closely you can see there is a small plastic plug that is glued in to hold the little metal restrictor in. I drilled out the plastic plug with a drill bit that fit closes the fit in the hole until i got the the metal restrictor. Then i flipped it over to the other side and took a flat tipped punch and whacked it out with a couple of light pops with a small hammer. It popped out clean. i made sure clean inside, then reinstalled it.
Note: of course on the 330I there was enough extra in the hose i didnt need to replace the modified CDV, but i did so the dealer cant give me crap if something does go wrong....

Lawrence

G33 · 12-20-2007, 02:12 AM

i looked on the http://zeckhausen.com/bmw_products.htm site and for some reason i cant do this mod on a RHD car

M3to335 · 12-20-2007, 05:59 AM

Itdorn... so people are buyin the Zeckhousen ones, when all they have to do is essentially POKE something out.

F32Fleet · 12-20-2007, 08:35 AM

Quote:

Originally Posted by M3to335

Itdorn... so people are buyin the Zeckhousen ones, when all they have to do is essentially POKE something out.

Machined out, but yes.

M3to335 · 12-20-2007, 11:42 AM

Im just going to machine my own then. Thanks.

HyperM3 · 12-20-2007, 05:18 PM

Quote:

Originally Posted by M3to335

Im just going to machine my own then. Thanks.

Machining is an exaggeration of what needs to be done. Take an awl, put it through the hole, poke lightly with hammer, piece pops out.

If anyone wants it done, send me yours and Ill do it for you.

12-02-2007, 08:21 PM	#1
M3to335 Whats that smell? 145 Rep 1,790 Posts Drives: Bimmers, duh Join Date: Nov 2006 Location: NC iTrader: (6)	What physically is modified for the CDV? I realize what a modified CDV is doing, but what are the vendors physically doing to "modify it". If its something I can do in the machine shop, id like to do that instead of buying another one. I heard its just poking out the valve
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12-19-2007, 06:23 PM	#2
ltdorn Enlisted Member 3 Rep 43 Posts Drives: 2006 330I Join Date: Jan 2007 Location: Sierra Vista, AZ iTrader: (0)	i just modded mine. What a cheesy easy thing to do..... On the 2006 330I version (plastic), there is a small metal orrifice that needs to be removed. If you look closely you can see there is a small plastic plug that is glued in to hold the little metal restrictor in. I drilled out the plastic plug with a drill bit that fit closes the fit in the hole until i got the the metal restrictor. Then i flipped it over to the other side and took a flat tipped punch and whacked it out with a couple of light pops with a small hammer. It popped out clean. i made sure clean inside, then reinstalled it. Note: of course on the 330I there was enough extra in the hose i didnt need to replace the modified CDV, but i did so the dealer cant give me crap if something does go wrong.... Lawrence __________________ Lawrence 2006 330I US Navy Sierra Vista, Az.
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12-20-2007, 02:12 AM	#3
G33 Colonel 91 Rep 2,079 Posts Drives: 335i Join Date: Jun 2007 Location: London iTrader: (0)	i looked on the http://zeckhausen.com/bmw_products.htm site and for some reason i cant do this mod on a RHD car
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12-20-2007, 05:59 AM	#4
M3to335 Whats that smell? 145 Rep 1,790 Posts Drives: Bimmers, duh Join Date: Nov 2006 Location: NC iTrader: (6)	Itdorn... so people are buyin the Zeckhousen ones, when all they have to do is essentially POKE something out.
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12-20-2007, 11:42 AM	#6
M3to335 Whats that smell? 145 Rep 1,790 Posts Drives: Bimmers, duh Join Date: Nov 2006 Location: NC iTrader: (6)	Im just going to machine my own then. Thanks.
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