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[V6Astra F]

Hi

I have a problem with the multiram intake system on the X25XE intake the valves wont close or function as they should . if you rev the motor and let go of the gas the top one closes for a split second sometimes the bottom one closes aswell so i was wondering do i need to get the vacuum resevoir or coud we have missed a leak on the intake .

Thank You

[feeutfo]

there are 2 vac tanks on the v6. One mounts on the intake "bag pipes" and the other sits behind the pollen filter housing on the bulk head.

There is a diag. in the maintenance guides section. See link below.

But, assuming the v6 is not factory fit in an Astra, i wonder if you had room to fit the intake, as we see it on the omega, in that engine bay? Blimey...

[V6Astra F]

heres a pic of the motor before it ran , since then the wires have been sorted ill post a new pic later today witch will be better quality  

[TheBoy]

looks like the earlier Vectra setup. THought that only had one valve, though been a long time since I've seem one.

Common problem is the vac tanks have a 1 way valve in that fails, causing the vac not to hold - easily fixed with an inline valve

[V6Astra F]

so if i get a vacuum resevoir they will work because i dont have one fitted now ?

[TheBoy]

so if i get a vacuum resevoir they will work because i dont have one fitted now ?

I imagine it should have a res somewhere, but can't remember enough about the older style vectra setup to confirm  

[feeutfo]

are you sure of the correct operation? Not that i am, in as much that i beleive they are closed by default and open when operated by ecu/vac?

Do you have any symptoms/steps in the power delivery. Assuming omega rules apply to your set up of course. ??

[V6Astra F]

i found some pictures on www.tssd.co.uk where they explained how they should work , i found the vectra sport forum and after looking at a few of the pictures i noticed i didnt have the reservoir . the car feels strong but i have read that it could affect the power delivery if they dont function . i just want to get permission from someone to post a pic of his/her enginebay .

[Marks DTM Calib]

You need a vac reservoir.

If you don't, then on wide throttle openings where inlet manifold vacuum is bugger all the multiram wont work

[V6Astra F]

Im going to try and get one this week hope the local agents have it .

Thank You  

[tmx]

Vac Tank on the vectra lives on the back of the vectras plenums nr the Brake servo pump pipe

vectra does have 2 multirams one big one and a small one but they run off 1 vac feed

small one does the same job as the omegas front one and big one the rear

based on the experiance of the 97 V6 Vectra B

if you look at the back of your plenum there should be 2 holes to mount the tank on then use 2x tourq bolts to hold him on