Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: chrisdb on 15 August 2008, 17:24:34

Title: Plenum pipes
Post by: chrisdb on 15 August 2008, 17:24:34
Hi guys

Does anyone know what the two middle rubber pipes on the plenum are for?

Cheers
Chris
Title: Re: Plenum pipes
Post by: dbug on 15 August 2008, 17:26:45
If u mean at the back of the engine they join and go to the breather box rear drivers side of engine.  Part of breather system.


[edit]Whoops - sorry I've given you info for the outer pipes. Inners (smaller ones) like he says [ch8595][ch8595][ch8595][ch8595][/edit]
Title: Re: Plenum pipes
Post by: JezInBrum on 15 August 2008, 17:55:15
One goes onto the fuel purge valve, they other onto the breather block. Crank case ventilation system
Title: Re: Plenum pipes
Post by: chrisdb on 15 August 2008, 18:31:18
Thanks guys :y
Title: Re: Plenum pipes
Post by: Pete Elite on 17 August 2008, 00:46:25
Quote
One goes onto the fuel purge valve, they other onto the breather block. Crank case ventilation system

  Has the fuel purge valve got a blue connector to ths right of where the pipe fits on?
Title: Re: Plenum pipes
Post by: Marks DTM Calib on 17 August 2008, 08:50:03
Quote
Quote
One goes onto the fuel purge valve, they other onto the breather block. Crank case ventilation system

  Has the fuel purge valve got a blue connector to ths right of where the pipe fits on?


Yep, the breathers all attached (both large and the single small one) to the breather block at the read of the drivers side head (1-3-5 bank)

(http://images.omegaowners.com/images/guides/v6_breathers/IMG_1186.jpg)

And connect to the breather bridge as per this:

(http://images.omegaowners.com/images/guides/v6_breathers/breather_assembly.jpg)
Title: Re: Plenum pipes
Post by: JezInBrum on 17 August 2008, 12:49:42
Quote
Quote
One goes onto the fuel purge valve, they other onto the breather block. Crank case ventilation system

  Has the fuel purge valve got a blue connector to ths right of where the pipe fits on?

Yes it does. To clarify. All the pipes do not go onto the breather block. the two fat ones jou together & go onto the breather block. One of the inner ones also goes onto the breather block. The other thin one goes onto the fuel purge valve. As you stated it does have an electrical connection into it.
The pic from the guide on cleaning the breather sysyem is useful at making sure they are all connected correctly. Thanks Mark
Title: Re: Plenum pipes
Post by: chrisdb on 17 August 2008, 14:42:34
Cheers, that's very useful. I originally asked because I developed a strange idle after the aux belt tensioner disintegrated. Fixed that but then the engine developed a bad idle - almost missing but not quite. I suspected spark plugs, bug first I checked all the vaccum pipes and noticed one not connected, so I wondered if I had plugged the wrong one into the plenum. Anyway, pulled out the suspect one, #3 and it had oil on it which I'd not seen before...

I then had a quick look at the plugs and discovered two of the right hand plugs drowned in oil, so I figured that the cam seal has gone and this is what caused the oil in the plenum pipe. I'm changing the seals now and giving it all a good clean, and I'm going to clean the breathers too. Fingers crossed  :)
Title: Re: Plenum pipes
Post by: Pete Elite on 18 August 2008, 19:23:43
  Thanks for the help lads.

                    Pete :y.
Title: Re: Plenum pipes
Post by: John_Clayton on 18 August 2008, 19:45:19
Having just completely rebuilt my engine I haven't been able to find the electrical connector that goes into the Fuel Purge Valve, despite searching and searching. I haven't yet started the engine (see my post re. the fuel pump relay) but when I do, will the lack of this connector cause any problems?
Title: Re: Plenum pipes
Post by: Kevin Wood on 18 August 2008, 20:03:48
Quote
Having just completely rebuilt my engine I haven't been able to find the electrical connector that goes into the Fuel Purge Valve, despite searching and searching. I haven't yet started the engine (see my post re. the fuel pump relay) but when I do, will the lack of this connector cause any problems?

It'll run, but it'll put the EML on.

Might be worth getting someone to follow it back to the main loom when they've got one apart. If you know where it exits the loom it'll be easier to find.

Kevin