Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: raymie440 on 14 June 2016, 14:05:38

Title: Vacuum pipe from for under the plenum 3.2 v6
Post by: raymie440 on 14 June 2016, 14:05:38

In the process of changing the plugs and when I removed the plenum the vacuum pipe from the for at the back just runs across the space under the plenum but is not connected to anything? What should this pipe be connected to?

Title: Re: Vacuum pipe from for under the plenum 3.2 v6
Post by: Kevin Wood on 14 June 2016, 14:08:49

Quote from: raymie440 on 14 June 2016, 14:05:38

In the process of changing the plugs and when I removed the plenum the vacuum pipe from the for at the back just runs across the space under the plenum but is not connected to anything? What should this pipe be connected to?

It connects to a little brass hose barb on the throttle body at one end (through a rubber 90 degree elbow) and to the fuel pressure regulator at the other end.

Title: Re: Vacuum pipe from for under the plenum 3.2 v6
Post by: raymie440 on 14 June 2016, 17:36:32

Thanks for the info, everything back together now and raining, one to add to tomorrow's job list

Title: Re: Vacuum pipe from fpr under the plenum 3.2 v6
Post by: raymie440 on 14 June 2016, 18:15:30

Just had a quick look and the brass nipple on the throttle body is attached to the valve type thing that is mounted on the metal part of the trumpet intake, confused!! I have seen the vacuum diagram on the site but it doesn't show the fuel pressure regulator or the throttle body?

Title: Re: Vacuum pipe from for under the plenum 3.2 v6
Post by: Doctor Gollum on 15 June 2016, 09:01:15

Been plumbed in wrong then...

For sits under plenum towards the back of the inlet manifold. It's physically impossible to lift of the plenum and not have that pipe come adrift.

Dread to think what that car is like to drive...

Title: Re: Vacuum pipe from for under the plenum 3.2 v6
Post by: raymie440 on 16 June 2016, 21:40:53

It was actually not that bad to drive, fixed now and picks up much better.

Title: Re: Vacuum pipe from for under the plenum 3.2 v6
Post by: Doctor Gollum on 17 June 2016, 03:37:54

Quote from: raymie440 on 16 June 2016, 21:40:53

It was actually not that bad to drive, fixed now and picks up much better.

You clearly don't exceed 2,500 rpm very often :-X

Title: Re: Vacuum pipe from for under the plenum 3.2 v6
Post by: raymie440 on 17 June 2016, 12:28:35

Thanks for the help with this! Under 2500 was where it was disappointing, over that and towards the red line it pulled like a train. Anyway all better now