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20-08-2015, 08:57 PM | #1 | ||
Starter Motor
Join Date: Jul 2014
Posts: 19
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Hi, just curious on the setup of the vacuum connection on my 2L engine, currently I have vacuum from the brake servo to the manifold intake which has two connection points on it and small hose linking them. The PCV valve connection hose is also connected to the vacuum hose via a three way T join. Just trying to work out if this setup is normal for twin webers with getting vacuum from both chambers on the manifold. Hope this makes some sense.. I've just had my brake servo overhauled so just wanting to make sure this is ok otherwise I will change it.
Thanks Pella |
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23-08-2015, 06:03 PM | #2 | ||
Over Thinker
Join Date: Dec 2005
Location: Ipswich Qld
Posts: 1,351
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if the systems are all working ..run it that way
reads ok by the description a picture would be good not to many twin webber setups around to really know
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My car goes Brumm Brumm |
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23-08-2015, 07:34 PM | #3 | ||
Regular Member
Join Date: Oct 2008
Posts: 51
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If you don't take vacuum from at least two cylinders, 1 and 2 or 3 and 4 you wont get enough vacuum for the brake booster to work effectively. You could also get a pulsing brake pedal.
I've always vented the pcv to a catch tank/bottle vented to atmosphere via a filter. |
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23-08-2015, 08:02 PM | #4 | ||
Starter Motor
Join Date: Jul 2014
Posts: 19
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Thanks for helping out. I've had the car about 1 year but just been sitting in the garage so haven't been driving it. The brakes have always been average and take a little bit force to pull up so I got the master cylinder reco and then bleed but no improvements. So thought may as well get the brake servo reco while at and hope that fixes the issue. Just finished hooking it up so will take it for a spin during the week and see if there are any improvements. In the pic the connection closer to the firewall then went into a T piece to hoses for vacuum and pcv hose. Just seen a few eskys with vacuum hose only goin to one cylinder, and thought maybe I should do that and run the pcv hose to the other cylinder. The oil catcher tank could be a option though if needed.
Thanks Pella |
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23-08-2015, 08:32 PM | #5 | ||
Over Thinker
Join Date: Dec 2005
Location: Ipswich Qld
Posts: 1,351
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pipe more vacuum to the booster
you have replaced everything .....the brakes should stop on a dime excellent idea CountP I've always vented the pcv to a catch tank/bottle vented to atmosphere via a filter.
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My car goes Brumm Brumm |
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24-08-2015, 12:35 PM | #6 | ||
Rally Nut
Join Date: Feb 2009
Location: Melbourne
Posts: 297
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if all that doesn't work well enough as sometimes these don't create that much vacuum with a different cam & twin carbs....
If the car is still registered and you don't want to go down the path of a peddle box then maybe think about adding a remote vacuum tank |
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24-08-2015, 01:14 PM | #7 | ||
Starter Motor
Join Date: Jul 2014
Posts: 19
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Thanks. You might be right. I'll see what happens when I take it for a drive, not sure on what works were done previously but may of changed the cam. They may of been rally driving up in Qld! They mounted a strut brace, electric fuel pump and battery in the boot. The car is unregistered so just looking at getting a temp permit to get some quotes for a respray but the brakes have been annoying me so thought I'll play around with it.
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