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[pauls]

Its the box attached to the bagpipes one of the small pipes has snapped and there isnt enough to reach the box.
 I have botched it up with a bit of pipe i had in the shed. will this cause a problem and what does that box do.Also where can i get this pipe from also the L shaped connector.

[Diamond Black Geezer]

Any vac leak you can actually affect the bhp of the engine - it also operates various vacuum-operated systems on the car. It's not critical - there's a non-return valve just off the brake servo, so you won't lose braking, or anything, but at the same time, considering the relative ease and low cost of finding a replacement, worth doing.

L-sections are pretty cheap from Vx, or freebies on your next scrapyard visit. Will attempt to get you a replacement, when I next go to the scrappy, but would assume that there'd be plenty of OOFers which have a spare in their shed, already. 

[Webby the Bear]

Drive your car.

Shut it off.

Pull off vac pipe (or your bodge) that goes to the top most part of the vac box.

If it hisses you're holding vacuum. If it doesnt your bodge prob hasnt worked.

[Diamond Black Geezer]

The Webby speaks the truth 

[Webby the Bear]

The Webby speaks the truth 

 

Only cos i've had a duff vac box and been told on 'ere what to look for 

[TheBoy]

That vac tank is for the multirams. So if it leaks, you've knackered your power curve.

Replace if not properly sealed. Add 1 way valve if you've damaged yours.

[pauls]

That vac tank is for the multirams. So if it leaks, you've knackered your power curve.

Replace if not properly sealed. Add 1 way valve if you've damaged yours.

The tank is fine its just one of the pipes isnt long enough anymore. It looks like it was botched before.

[Diamond Black Geezer]

I've recently replaced all the vac pipes on my V6, they're known for going brittle over time, and the rubber on mine, though not leaking, cracked when flexed, so were definintely on the way out. Also found about half a dozen bodges, all over, so once you've got one section sorted, worth just checking the rest of them, too 

As mentioned, this affect power curve. Also, handily, the diameters of the rubbers is slightly different, on the inlet and outlet. 3mm and 3.5mm   

if my records are right, this should be part nos

90156412

90572322

or

90528894

They're parts made since the Nova days, so not hard to come by 

[pauls]

I've recently replaced all the vac pipes on my V6, they're known for going brittle over time, and the rubber on mine, though not leaking, cracked when flexed, so were definintely on the way out. Also found about half a dozen bodges, all over, so once you've got one section sorted, worth just checking the rest of them, too 

As mentioned, this affect power curve. Also, handily, the diameters of the rubbers is slightly different, on the inlet and outlet. 3mm and 3.5mm   

if my records are right, this should be part nos

90156412

90572322

or

90528894

They're parts made since the Nova days, so not hard to come by 

Thanks for that will pop over vx tomorrow

[Diamond Black Geezer]

Always, always, always worth taking in the part you're looking for, if you can just pop it off the car in the car park, and confirm it is the right part from the Stealer - as I say there idea is one's inlet, one's outlet, so you don't accidentally put the wrong pipe on the wrong bit. I don't want to have told you wrong, and you end up with a bag of the larger diameter, if it's the thinner pipe you're trying to connect to 

That in mind, Marks diagram of the routing of the Vac pipes is great to go through, as you never know, someone may have 'plumbed' it wrong at some point in the car's life (mine was)

If memory serves, the 3.5mm larger pipe does have a noticeable 'fattening' at one end, so in cross section a bit like the road narrows sign, so is fairly obvious.