Removing recirc DV

Cosworth-PT · 14-12-2005, 12:32 PM

I want to do some tests without the (original) recirculating dv. Could anyone tell me how to do it?

besides the plug at it's place, what to do with it's tubes? the one that comes from engine to dv, and the other one that comes from the actuator to amal?

thanks

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XR4Timan · 14-12-2005, 01:08 PM

You can remove the recirc DV by just plugging the spout on the IC. You can leave the other port open (on the air cleaner hose from the turbo inlet).

The thin manifold vacuum hose to the DV just needs to be plugged. Some people just use a 'screw' they have lying around.

As far as the hose to the actuator to the amal valve - my recommendation is to leave it alone. Basically it's a computer-controlled "bleed valve". When the ECU gives the signal, it will allow air to bypass the wastgate actuator, tricking the wastegate by increasing the boost above what the wastegate is set to. If you don't understand how the concept works, leave it well alone.

Cosworth-PT · 14-12-2005, 01:28 PM

Quote:

Originally Posted by XR4Timan

You can remove the recirc DV by just plugging the spout on the IC. You can leave the other port open (on the air cleaner hose from the turbo inlet).

The thin manifold vacuum hose to the DV just needs to be plugged. Some people just use a 'screw' they have lying around.

As far as the hose to the actuator to the amal valve - my recommendation is to leave it alone. Basically it's a computer-controlled "bleed valve". When the ECU gives the signal, it will allow air to bypass the wastgate actuator, tricking the wastegate by increasing the boost above what the wastegate is set to. If you don't understand how the concept works, leave it well alone.

Thanks. I said about the amal-actuator hose but it has nothing to do with what I want. tks for remembering me

Mad_Ad_300bhp · 14-12-2005, 01:48 PM

just plug the vac line mate, no need to pull off the recirc to the air filter

Cosworth-PT · 14-12-2005, 01:50 PM

Quote:

Originally Posted by Mad_Ad_300bhp

just plug the vac line mate, no need to pull off the recirc to the air filter

do you mean: to leave the recirc at it's place and just plug the vac line?

XR4Timan · 14-12-2005, 02:00 PM

Yes. You can do that too. However if the diaphram of the recirc DV is bad, you'd still want to plug the port.

Mad_Ad_300bhp · 14-12-2005, 02:00 PM

yeh just take off the little vac pipe and put a bolt in it. as the valve will be shut theres no need to block the bigger recirc pipe off.

Cosworth-PT · 14-12-2005, 02:13 PM

thanks. will give it a try.

Mad_Ad_300bhp · 14-12-2005, 04:11 PM

yeh i suppose if you are doing it too if the diaphram is fookered then try it with that blocked aswell( get a broom handle!)

Cosworth-PT · 14-12-2005, 06:09 PM

Quote:

Originally Posted by Mad_Ad_300bhp

yeh i suppose if you are doing it too if the diaphram is fookered then try it with that blocked aswell( get a broom handle!)

Thanks.

This is strange: with or without recirc DV, every sound (chatter) is just the same, does this means that DV is broken? I have this 2wd since May and allways made the same sounds

XR4Timan · 15-12-2005, 06:22 AM

I would check the vacuum line. Put your finger on it when the engine is running. Better still, replace it with another DV and check it out.

14-12-2005, 01:08 PM	#2
XR4Timan Too many posts.. I need a life!! Garage is empty, add now Trader Score: (0) Join Date: Jun 2003 Location: Dallas, Texas USA Posts: 924 Rep Power: 10	You can remove the recirc DV by just plugging the spout on the IC. You can leave the other port open (on the air cleaner hose from the turbo inlet). The thin manifold vacuum hose to the DV just needs to be plugged. Some people just use a 'screw' they have lying around. As far as the hose to the actuator to the amal valve - my recommendation is to leave it alone. Basically it's a computer-controlled "bleed valve". When the ECU gives the signal, it will allow air to bypass the wastgate actuator, tricking the wastegate by increasing the boost above what the wastegate is set to. If you don't understand how the concept works, leave it well alone. __________________ 1986 Sierra Cosworth http://www.geocities.com/merouby

14-12-2005, 01:48 PM	#4
Mad_Ad_300bhp Regular Contributor Garage is empty, add now Trader Score: (0) Join Date: Nov 2005 Location: Chorley, Lancs Posts: 216 Rep Power: 8	just plug the vac line mate, no need to pull off the recirc to the air filter __________________ now breaking my 2wd cosworth http://www.passionford.com/forum/viewtopic.php?t=163087 2.0 16 v Nova now in progress

14-12-2005, 02:00 PM	#6
XR4Timan Too many posts.. I need a life!! Garage is empty, add now Trader Score: (0) Join Date: Jun 2003 Location: Dallas, Texas USA Posts: 924 Rep Power: 10	Yes. You can do that too. However if the diaphram of the recirc DV is bad, you'd still want to plug the port. __________________ 1986 Sierra Cosworth http://www.geocities.com/merouby

14-12-2005, 02:00 PM	#7
Mad_Ad_300bhp Regular Contributor Garage is empty, add now Trader Score: (0) Join Date: Nov 2005 Location: Chorley, Lancs Posts: 216 Rep Power: 8	yeh just take off the little vac pipe and put a bolt in it. as the valve will be shut theres no need to block the bigger recirc pipe off. __________________ now breaking my 2wd cosworth http://www.passionford.com/forum/viewtopic.php?t=163087 2.0 16 v Nova now in progress

14-12-2005, 04:11 PM	#9
Mad_Ad_300bhp Regular Contributor Garage is empty, add now Trader Score: (0) Join Date: Nov 2005 Location: Chorley, Lancs Posts: 216 Rep Power: 8	yeh i suppose if you are doing it too if the diaphram is fookered then try it with that blocked aswell( get a broom handle!) __________________ now breaking my 2wd cosworth http://www.passionford.com/forum/viewtopic.php?t=163087 2.0 16 v Nova now in progress

14-12-2005, 02:13 PM	#8
Cosworth-PT Regular Contributor Garage is empty, add now Trader Score: (0) Join Date: Jun 2005 Location: Portugal Posts: 224 Rep Power: 8	thanks. will give it a try.

15-12-2005, 06:22 AM	#11
XR4Timan Too many posts.. I need a life!! Garage is empty, add now Trader Score: (0) Join Date: Jun 2003 Location: Dallas, Texas USA Posts: 924 Rep Power: 10	I would check the vacuum line. Put your finger on it when the engine is running. Better still, replace it with another DV and check it out. __________________ 1986 Sierra Cosworth http://www.geocities.com/merouby

15-12-2005, 06:22 AM
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