Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: iwannacarthatworks on 08 November 2007, 19:44:53

Title: black box at bottom of air intake. what is it?
Post by: iwannacarthatworks on 08 November 2007, 19:44:53
hi, i have just changed my aux belt as the pulley killed itself and took the belt with it. when i took the air intake out there was a box attatched at the bottom with two vacum pipes in it,one of the oulets was snapped and superglued by the last owner and now its beyond repair. now my car wont start without revving and cuts out immediately. my question is what does the box do and is that why it wont start. (only one vacum pipe attatched at moment) also anyone got a cheap one going?
ian
Title: Re: black box at bottom of air intake. what is it?
Post by: damon80 on 08 November 2007, 19:47:34
Is it not where the Lamda sensor lives?
Title: Re: black box at bottom of air intake. what is it?
Post by: iwannacarthatworks on 08 November 2007, 20:03:58
Hi,
Not sure, it's physically attatched to the multiram air intake and is opposite the alternator on the left hand side at the front of the car. There are no electrical wires that I can see just the two vacuum pipes.
Title: Re: black box at bottom of air intake. what is it?
Post by: Dave-C on 08 November 2007, 20:06:12
Sounds like the air resevoir, get a replacment from under the l/h scuttle on a vectra from a scrappy, make sure the pipes are on right or you'll lose youe multi rams........

DC :y

p.s Beautiful pert of the world you're in...  I fell in love with Elgin and Hopeman.....  
Title: Re: black box at bottom of air intake. what is it?
Post by: hotel21 on 08 November 2007, 20:11:06
Its a vacuum tank for the multirams, only there on the later, circa minilift, cars.  Theres another behind the pollen filter for the climate control etc.
Title: Re: black box at bottom of air intake. what is it?
Post by: Darth Loo-knee on 08 November 2007, 20:16:07
Quote
hi, i have just changed my aux belt as the pulley killed itself and took the belt with it. when i took the air intake out there was a box attatched at the bottom with two vacum pipes in it,one of the oulets was snapped and superglued by the last owner and now its beyond repair. now my car wont start without revving and cuts out immediately. my question is what does the box do and is that why it wont start. (only one vacum pipe attatched at moment) also anyone got a cheap one going?
ian

What your describing sounds like the Vac Tank mate, if it is they are about £18 from Vauxhall :y
Title: Re: black box at bottom of air intake. what is it?
Post by: iwannacarthatworks on 08 November 2007, 20:19:30
hi, thanks for that. would that stop the car starting then ?
its very frustrating becaust it was running fine before.
Title: Re: black box at bottom of air intake. what is it?
Post by: Darth Loo-knee on 08 November 2007, 20:26:51
Quote
hi, thanks for that. would that stop the car starting then ?
its very frustrating becaust it was running fine before.

I aren't the best one to tell you mate, but I thought that if the Vac Tank (stores vacuum) was broken, or as you say a vac pipe has broken off you would have an air leak, which in turn would not allow your multi rams to work properly...... all that would do is not perform so well and less mpg......
Wouldn't have thought it would stop the car from starting!
Are you sure with the belt coming off it hasn't damaged something else?
Title: Re: black box at bottom of air intake. what is it?
Post by: hotel21 on 08 November 2007, 20:26:58
Certainly would not help.  dependant on which pipe is broken creates an air leak which will affect running....
Title: Re: black box at bottom of air intake. what is it?
Post by: iwannacarthatworks on 08 November 2007, 20:31:31
the belt broke on the way home from work and the engine was running fine. even when i had the rams out to check the belt it ran but as soon as i put it back together minus the pipe it would not start. no lights on in car when i rev it to run and i cant see ant other damage apart from where the pulley disintegrated. ill get one of the tanks and give it a try.
Title: Re: black box at bottom of air intake. what is it?
Post by: Marks DTM Calib on 09 November 2007, 08:29:54
Block off the vac pipe as a short term measure.
Title: Re: black box at bottom of air intake. what is it?
Post by: vvm on 09 November 2007, 11:43:50
the vacuum pipe being disconnected will make no difference to it starting, sounds like either something electrical left off or a bit of belt debris gone into the cambelt and jumped it a bit
Title: Re: black box at bottom of air intake. what is it?
Post by: iwannacarthatworks on 13 November 2007, 18:45:36
hi, put a new vac tank on and new pulley and belt but it wont start. just misfires a bit and stops. i can rev it but it wont go. any ideas anyone. cant see any loose wires. there is a strong petrol smell when i start it up.