Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Stu.C on 03 May 2022, 23:35:13

Title: Vacuum valve alternative part numbers?
Post by: Stu.C on 03 May 2022, 23:35:13
I've an X30XE running standalone that's currently making more hissy noises than I'd expect (or remember from when it was in the car). My hearing's dodgy on the best of days, but I could at least tell there was a rush of air at the back of the 2-4-6 bank, as a starter for ten.


It seems that at some point the vacuum valve for the plenum multiram got a teensy-weensy bit bashed and has sprung a leak. The engraved part number seems to be 90466244, but I'm not coming up with much for that. Is there a different number I can search for, or a magic combination of keywords? Or if you happen to have a link to one I can just order, that'd be great too...  :y


(https://www.cuyahoga.co.uk/wp-content/uploads/2022/05/20220503_231151.jpg)
Title: Re: Vacuum valve alternative part numbers?
Post by: Doctor Gollum on 04 May 2022, 02:59:07
It should be the same as the front one if that helps you any ;)
Title: Re: Vacuum valve alternative part numbers?
Post by: GastronomicKleptomaniac on 04 May 2022, 08:47:57
If it helps any, my ex plod had a previous repair with putty that has lasted a decade. Only when I've started digging in has it started to crack... Might be worth a temporary fix?
Title: Re: Vacuum valve alternative part numbers?
Post by: Raeturbo on 04 May 2022, 14:08:27
I got a similar valve from a vw in the scrapyard has served me well this last three years👍
Title: Re: Vacuum valve alternative part numbers?
Post by: grifter on 04 May 2022, 22:34:04
Have you tried 90466214, sure that's the one listed for the x30 here - item 10:

https://vauxhall.catalogs-parts.com/#{client:1;page:part;lang:en;category:car;catalog:v94;group:g;groupsub:0;subgroup:58-1}#detail=90466214#10

Title: Re: Vacuum valve alternative part numbers?
Post by: Stu.C on 04 May 2022, 22:35:37
It should be the same as the front one if that helps you any ;)


Well, knowing it's there is tantalising but unfortunately it's not spare.  ;D


I'll cap off that line to the plenum valve for the moment and see if that was all of it and silence returns, or discover I'm still chasing another leak...
Title: Re: Vacuum valve alternative part numbers?
Post by: Stu.C on 04 May 2022, 22:49:53
Have you tried 90466214, sure that's the one listed for the x30


Aha, that code throws up a few more suspects from across the GM group  :y  Funny how the supplier engraves one code, but the book lists something else - probably copied down wrong off a smudged fax or something twenty years ago!


Turns out I've also got one under the bonnet of my 9-5 Aero...  ;)
Title: Re: Vacuum valve alternative part numbers?
Post by: grifter on 05 May 2022, 07:09:00
Have you tried 90466214, sure that's the one listed for the x30


Aha, that code throws up a few more suspects from across the GM group  :y  Funny how the supplier engraves one code, but the book lists something else - probably copied down wrong off a smudged fax or something twenty years ago!


Turns out I've also got one under the bonnet of my 9-5 Aero...  ;)

There are some right weird anomolies with some GM part numbers, although at least they did do a relatively good part numbers system overall, and stamped most of their parts with the number. That's right Saab used the part as well.
Title: Re: Vacuum valve alternative part numbers?
Post by: Stu.C on 06 June 2022, 23:21:51
Just to follow up on this in case anyone stumbles across it down the line - I found a suitable replacement solenoid valve in the stash from the de-commissioned SAI circuit. Exact same valve and works a treat once you hit 4,100 RPM ...  :y


(https://www.cuyahoga.co.uk/wp-content/uploads/2022/05/20220213_161405-scaled-e1653346174715.jpg)