Brake booster vac hose
07-17-13, 01:21 PM
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Brake booster vac hose
Short and sweet: Does anyone know where I can get a (preferably new...) vac hose for the brake booster on a S4 NA? Mine has cracks all over it and unfortunately Mazdatrix says this part is "No longer available" for the manifold-to-firewall hose. 
On a side note, anyone got some good tricks for tracking down a vacuum leak?
On a side note, anyone got some good tricks for tracking down a vacuum leak?
07-17-13, 01:46 PM
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yeah its NLA, FB01-43-836, its the same S4 and S5 NA.
07-17-13, 10:42 PM
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That's just a piece of hose anyways.
Get something to fit and use a couple clamps and you are done.
The Hose that you should worry about getting(If you ever have to replace it) is the One at the Steel line to Booster.It has a one way check valve inside it.
Get something to fit and use a couple clamps and you are done.
The Hose that you should worry about getting(If you ever have to replace it) is the One at the Steel line to Booster.It has a one way check valve inside it.
07-18-13, 01:08 PM
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Good to know. I was going to replace both of them. The only concern I had with the s-curved hose by the manifold was if whatever I replace it with kinks shut under a vacuum
07-19-13, 08:05 AM
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It would have to be real HARD vacuum in order to suck a piece of fuel hose inwards...we are talking Pounds now..And that hose is only,what?,about 6-8 inches long,tops?..
I got a chunk on my car,works fine,and I am still here typing,so it must be OK!
I got a chunk on my car,works fine,and I am still here typing,so it must be OK!
Last edited by misterstyx69; 07-19-13 at 08:07 AM.
07-19-13, 10:21 AM
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07-19-13, 02:44 PM
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thanks for the useful input everyone. Off i go to buy a loop of hose.
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07-19-13, 05:22 PM
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That is what I meant,have you ever tried to Put that hose on an A/N fitting?...It doesn't have a lot of give!
What I did to alleviate any kinks was just cut the steel line back a bit and you can slide a longer piece of hose on,without an S shape or a Kink.Use 2 Fuel injector clamps and you are done.
I used a piece of Hi pressure Fuel line from Jegs.
I had to DO what I had to do,since I am out in the "sticks"...
What I did to alleviate any kinks was just cut the steel line back a bit and you can slide a longer piece of hose on,without an S shape or a Kink.Use 2 Fuel injector clamps and you are done.
I used a piece of Hi pressure Fuel line from Jegs.
I had to DO what I had to do,since I am out in the "sticks"...
07-19-13, 06:06 PM
#9
Could swear there was a silicone hose for the brake booster available couple of years ago...
I ended up using left over braided hose that I had (had to peel the braided off the rubber hose). The curve is pretty tight, and the hose kinks. I haven't noticed any ill effect, but I don't like seeing it, or knowing it. Will replace with OEM one sooner or later.
I ended up using left over braided hose that I had (had to peel the braided off the rubber hose). The curve is pretty tight, and the hose kinks. I haven't noticed any ill effect, but I don't like seeing it, or knowing it. Will replace with OEM one sooner or later.
07-19-13, 06:15 PM
#10
I had to get a new one a few years back. I just went up to Napa and we fiddled through a pile of hoses. We found a grew silicone hose and made a loop to make the connection. It works just fine. As a bonus the guy just gave it to me free of charge too. It was basicly from the scrap pile. He didn't actualy have anything of the right size on sale.
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