Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Welcome to OOF

Pages: [1]   Go Down

Author Topic: Blanking EGR valve  (Read 2124 times)

0 Members and 1 Guest are viewing this topic.

MartinP

  • Senior Member
  • ****
  • Offline Offline
  • Gender: Male
  • Dudley
  • Posts: 605
    • BMW 320D
    • View Profile
Blanking EGR valve
« on: 04 January 2007, 21:22:14 »
TB and myself have just been discussing wether when blanking the valve off, by sandwiching a plate between the valve and manifold,

Do you need a gasket on both sides of the plate?

Logged

Marks DTM Calib

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • West Bridgford
  • Posts: 34010
  • Git!
    • View Profile
Re: Blanking EGR valve
« Reply #1 on: 04 January 2007, 21:24:01 »
No, only on the under side.....the plate will stop gases getting through to leak out of the top side!
Logged

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 107021
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: Blanking EGR valve
« Reply #2 on: 04 January 2007, 21:28:31 »
Quote
No, only on the under side.....the plate will stop gases getting through to leak out of the top side!
What about leaking from exhaust (if valve knackered or open)?
Logged
Grumpy old man

Marks DTM Calib

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • West Bridgford
  • Posts: 34010
  • Git!
    • View Profile
Re: Blanking EGR valve
« Reply #3 on: 04 January 2007, 21:31:36 »
The inlet and outlet on the valve are both on the underside ............so with a blanking plate nothing can get in and nothing can get out.....
Logged

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 107021
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: Blanking EGR valve
« Reply #4 on: 04 January 2007, 21:38:47 »
Quote
The inlet and outlet on the valve are both on the underside ............so with a blanking plate nothing can get in and nothing can get out.....
Ahhh, it all makes sense now... :y
Logged
Grumpy old man

JamesV6CDX

  • Omega Queen
  • *****
  • Offline Offline
  • Gloucestershire/Buckinghamshire
  • Posts: 16640
    • Omega 3.2 Retail MV6 LPG
    • View Profile
Re: Blanking EGR valve
« Reply #5 on: 04 January 2007, 21:41:28 »
I know this has been answered before, but I can't find it. Can someone explain what the benefits of blanking the EGR valve are, apart from to resolve any issues.

EG, is there a power/takeup increase? I remember reading there was - how significant is this??

Also, any change in fuel economy, either way? By how much?

If my EML is coming on with an EGR code stored, will blanking it off cure this?

Cheers :D
Logged

MartinP

  • Senior Member
  • ****
  • Offline Offline
  • Gender: Male
  • Dudley
  • Posts: 605
    • BMW 320D
    • View Profile
Re: Blanking EGR valve
« Reply #6 on: 04 January 2007, 21:47:30 »
Quote
No, only on the under side.....the plate will stop gases getting through to leak out of the top side!


 ;D as it happens, that where I put mine last night  8-)
Logged

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 107021
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: Blanking EGR valve
« Reply #7 on: 04 January 2007, 21:48:05 »
Its not a performance mod. It may improve performance/economy, but unlikely to be noticable. Not it wont cure your eml with egr.

Reason for doing it is the valve fails mechanically, allowing exhaust gases into intake when its not supposed to. Blanking it stops it...
Logged
Grumpy old man

Chopsdad

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Bouncy Castle in Carlisle
  • Posts: 4037
  • Keep it clean!
    • View Profile
Re: Blanking EGR valve
« Reply #8 on: 04 January 2007, 22:16:35 »
Quote
Its not a performance mod. It may improve performance/economy, but unlikely to be noticable. Not it wont cure your eml with egr.

Reason for doing it is the valve fails mechanically, allowing exhaust gases into intake when its not supposed to. Blanking it stops it...

Would this fault be EML or could it also affect Emissions light?
Logged
[img name=signat_img_resize]http://i123.photobucket.com/albums/o317/chopsdad/oof.jpg[/IMG]                                                       [img name=signat_img_resize]http://i123.photobucket.com/albu

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 107021
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: Blanking EGR valve
« Reply #9 on: 04 January 2007, 22:18:27 »
Quote
Quote
Its not a performance mod. It may improve performance/economy, but unlikely to be noticable. Not it wont cure your eml with egr.

Reason for doing it is the valve fails mechanically, allowing exhaust gases into intake when its not supposed to. Blanking it stops it...

Would this fault be EML or could it also affect Emissions light?
No emissions light on Omegas with egr...

Logged
Grumpy old man

Chopsdad

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Bouncy Castle in Carlisle
  • Posts: 4037
  • Keep it clean!
    • View Profile
Re: Blanking EGR valve
« Reply #10 on: 04 January 2007, 22:20:50 »
Quote
Quote
Quote
Its not a performance mod. It may improve performance/economy, but unlikely to be noticable. Not it wont cure your eml with egr.

Reason for doing it is the valve fails mechanically, allowing exhaust gases into intake when its not supposed to. Blanking it stops it...

Would this fault be EML or could it also affect Emissions light?
No emissions light on Omegas with egr...


Cheers TB - I'll cross that one of my list of possible fixes then  :-[
Logged
[img name=signat_img_resize]http://i123.photobucket.com/albums/o317/chopsdad/oof.jpg[/IMG]                                                       [img name=signat_img_resize]http://i123.photobucket.com/albu

x25xe

  • Senior Member
  • ****
  • Offline Offline
  • Gender: Male
  • Hayes, Middlesex
  • Posts: 915
  • Avater removed due to size
    • View Profile
Re: Blanking EGR valve
« Reply #11 on: 04 January 2007, 22:28:46 »
Quote
I know this has been answered before, but I can't find it. Can someone explain what the benefits of blanking the EGR valve are, apart from to resolve any issues.

EG, is there a power/takeup increase? I remember reading there was - how significant is this??

Also, any change in fuel economy, either way? By how much?

If my EML is coming on with an EGR code stored, will blanking it off cure this?

Cheers :D

The point of the EGR valve is an emissions benefit.  When the engine is being cruised i.e. light throttle openings on a motorway, some exhaust gas in reintroduced into the combustion chamber.  This has the effect of lowering the combustion temperature, which in turn reduces NOX emissions at the tailpipe.  It is not a performance mod as, if anything, it reduces power slightly.

Regarding a change to fuel economy - I don't know I am afraid.

If the EGR is causing the EML light to come on, then blanking it will not turn it off for the simple reason that the light is on because the ECU "knows" that it cannot drive the EGR valve as it is stuck.  The light will stay on, but the symptoms of an open valve (i.e poor idle etc) will be removed as you have blanked the flow of gases to the inlet manifold.

Hope this makes a bit of sense and helps.
Logged
1998 2.5 V6 Omega CDX, Leather and Electric Pack!
Pages: [1]   Go Up
« previous next »
 

Page created in 0.01 seconds with 18 queries.