Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Stu.C on 03 May 2022, 23:35:13
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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)
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It should be the same as the front one if that helps you any ;)
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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?
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I got a similar valve from a vw in the scrapyard has served me well this last three years👍
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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
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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...
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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... ;)
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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.
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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)