Brake booster question

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Josh Colombo

Brake booster question

Post by Josh Colombo »

Ok.....I got a question for you turbo owners. I was doin some playin around with some cleaner on my car last weekend....and I hooked it up to the brake booster vacuum line to suck it into the intake.......I got to thinking......on a turbo line.....sure you're goin to have intake manifold vacuum at idle....but on spoolin up the turbo...pressure in the manifold goes to positive pressure....ie no vacuum.......is the brake booster still hooked up to the intake manifold on the turbo cars? Or is there some other place to source vacuum from........if it's hooked up the same......how does the brake booster work with positive pressure?

Anyone....anyone?

Thanks

Josh
************************************
Josh Colombo
<mailto:Josh@surrealmirage.com> Josh@surrealmirage.com

"Life, an ever-changing melody
of beats and rhythm" - ME
************************************




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milehial2000

Brake booster question

Post by milehial2000 »

There is a one-way valve in the hose from the manifold to the booster
and I mean IN the hose you probably won't be able to see it I am not
sure how they got the valve inside the hose but it is there. You will
see a the hose and it will say ENGINE under the arrow so that the
hose stands a chance of being installed right.
AL(CO)


--- In BC-BFLegacyWorks@y..., "Josh Colombo" <josh@s...> wrote:
> Ok.....I got a question for you turbo owners. I was doin some
playin around with some cleaner on my car last weekend....and I hooked
it up to the brake booster vacuum line to suck it into the
intake.......I got to thinking......on a turbo line.....sure you're
goin to have intake manifold vacuum at idle....but on spoolin up the
turbo...pressure in the manifold goes to positive pressure....ie no
vacuum.......is the brake booster still hooked up to the intake
manifold on the turbo cars? Or is there some other place to source
vacuum from........if it's hooked up the same......how does the brake
booster work with positive pressure?
>
> Anyone....anyone?
>
> Thanks
>
> Josh
> ************************************
> Josh Colombo
> <mailto:Josh@s...> Josh@s...
>
> "Life, an ever-changing melody
> of beats and rhythm" - ME
> ************************************


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Josh Colombo

Brake booster question

Post by Josh Colombo »

so....if the valve closes when under pressure.....how do you get vacuum then? how does the brake booster still work?

************************************
Josh Colombo
Josh@surrealmirage.com <mailto:Josh@surrealmirage.com>

"Life, an ever-changing melody
of beats and rhythm" - ME
************************************


-----Original Message-----
From: milehial2000 [mailto:acroxford@hypermall.net]
Sent: Wednesday, April 10, 2002 9:31 PM
To: BC-BFLegacyWorks@yahoogroups.com
Subject: [BC-BFLegacyWorks] Re: Brake booster question


There is a one-way valve in the hose from the manifold to the booster
and I mean IN the hose you probably won't be able to see it I am not
sure how they got the valve inside the hose but it is there. You will
see a the hose and it will say ENGINE under the arrow so that the
hose stands a chance of being installed right.
AL(CO)


--- In BC-BFLegacyWorks@y..., "Josh Colombo" <josh@s...> wrote:
> Ok.....I got a question for you turbo owners. I was doin some
playin around with some cleaner on my car last weekend....and I hooked
it up to the brake booster vacuum line to suck it into the
intake.......I got to thinking......on a turbo line.....sure you're
goin to have intake manifold vacuum at idle....but on spoolin up the
turbo...pressure in the manifold goes to positive pressure....ie no
vacuum.......is the brake booster still hooked up to the intake
manifold on the turbo cars? Or is there some other place to source
vacuum from........if it's hooked up the same......how does the brake
booster work with positive pressure?
>
> Anyone....anyone?
>
> Thanks
>
> Josh
> ************************************
> Josh Colombo
> <mailto:Josh@s...> Josh@s...
>
> "Life, an ever-changing melody
> of beats and rhythm" - ME
> ************************************



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BC-BFLegacyWorks-unsubscribe@egroups.com









------------------------ ---------------------~-->
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FREE Money 2002.
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milehial2000

Brake booster question

Post by milehial2000 »

The valve allows the engine to apply vacuum to the booster but when
the pressure in the manifold exceeds the pressure in the booster the
valve closes. I first noticed this on a n/a engine it was probably
there to prevent pressure from a backfire reaching the booster I think
pressure does bad things to the boosters and the booster used with ABS
is supposedly very expensive.
AL(CO)


--- In BC-BFLegacyWorks@y..., "Josh Colombo" <josh@s...> wrote:
> so....if the valve closes when under pressure.....how do you get
vacuum then? how does the brake booster still work?
>
> ************************************
> Josh Colombo
> Josh@s... <mailto:Josh@s...>
>
> "Life, an ever-changing melody
> of beats and rhythm" - ME
> ************************************
>
>
> -----Original Message-----
> From: milehial2000 [mailto:acroxford@h...]
> Sent: Wednesday, April 10, 2002 9:31 PM
> To: BC-BFLegacyWorks@y...
> Subject: [BC-BFLegacyWorks] Re: Brake booster question
>
>
> There is a one-way valve in the hose from the manifold to the
booster
> and I mean IN the hose you probably won't be able to see it I am not
> sure how they got the valve inside the hose but it is there. You
will
> see a the hose and it will say ENGINE under the arrow so that the
> hose stands a chance of being installed right.
> AL(CO)
>
>
> --- In BC-BFLegacyWorks@y..., "Josh Colombo" <josh@s...> wrote:
> > Ok.....I got a question for you turbo owners. I was doin some
> playin around with some cleaner on my car last weekend....and I
hooked
> it up to the brake booster vacuum line to suck it into the
> intake.......I got to thinking......on a turbo line.....sure you're
> goin to have intake manifold vacuum at idle....but on spoolin up the
> turbo...pressure in the manifold goes to positive pressure....ie no
> vacuum.......is the brake booster still hooked up to the intake
> manifold on the turbo cars? Or is there some other place to source
> vacuum from........if it's hooked up the same......how does the
brake
> booster work with positive pressure?
> >
> > Anyone....anyone?
> >
> > Thanks
> >
> > Josh
> > ************************************
> > Josh Colombo
> > <mailto:Josh@s...> Josh@s...
> >
> > "Life, an ever-changing melody
> > of beats and rhythm" - ME
> > ************************************
>
>
>
> To unsubscribe from this group, please send an email to:
> BC-BFLegacyWorks-unsubscribe@e...
>
>
>
> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/


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Mark Ward

Brake booster question

Post by Mark Ward »

So this is why when I left foot brake in a corner and apply power, i loose
all my brake boost. I see...
Any ideas how this can be fixed? Air pump?
Mark


-----Original Message-----
From: milehial2000 [mailto:acroxford@hypermall.net]
Sent: Wednesday, April 10, 2002 9:14 PM
To: BC-BFLegacyWorks@yahoogroups.com
Subject: [BC-BFLegacyWorks] Re: Brake booster question


The valve allows the engine to apply vacuum to the booster but when
the pressure in the manifold exceeds the pressure in the booster the
valve closes. I first noticed this on a n/a engine it was probably
there to prevent pressure from a backfire reaching the booster I think
pressure does bad things to the boosters and the booster used with ABS
is supposedly very expensive.
AL(CO)


--- In BC-BFLegacyWorks@y..., "Josh Colombo" <josh@s...> wrote:
> so....if the valve closes when under pressure.....how do you get
vacuum then? how does the brake booster still work?
>
> ************************************
> Josh Colombo
> Josh@s... <mailto:Josh@s...>
>
> "Life, an ever-changing melody
> of beats and rhythm" - ME
> ************************************
>
>
> -----Original Message-----
> From: milehial2000 [mailto:acroxford@h...]
> Sent: Wednesday, April 10, 2002 9:31 PM
> To: BC-BFLegacyWorks@y...
> Subject: [BC-BFLegacyWorks] Re: Brake booster question
>
>
> There is a one-way valve in the hose from the manifold to the
booster
> and I mean IN the hose you probably won't be able to see it I am not
> sure how they got the valve inside the hose but it is there. You
will
> see a the hose and it will say ENGINE under the arrow so that the
> hose stands a chance of being installed right.
> AL(CO)
>
>
> --- In BC-BFLegacyWorks@y..., "Josh Colombo" <josh@s...> wrote:
> > Ok.....I got a question for you turbo owners. I was doin some
> playin around with some cleaner on my car last weekend....and I
hooked
> it up to the brake booster vacuum line to suck it into the
> intake.......I got to thinking......on a turbo line.....sure you're
> goin to have intake manifold vacuum at idle....but on spoolin up the
> turbo...pressure in the manifold goes to positive pressure....ie no
> vacuum.......is the brake booster still hooked up to the intake
> manifold on the turbo cars? Or is there some other place to source
> vacuum from........if it's hooked up the same......how does the
brake
> booster work with positive pressure?
> >
> > Anyone....anyone?
> >
> > Thanks
> >
> > Josh
> > ************************************
> > Josh Colombo
> > <mailto:Josh@s...> Josh@s...
> >
> > "Life, an ever-changing melody
> > of beats and rhythm" - ME
> > ************************************
>
>
>
> To unsubscribe from this group, please send an email to:
> BC-BFLegacyWorks-unsubscribe@e...
>
>
>
> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/



To unsubscribe from this group, please send an email to:
BC-BFLegacyWorks-unsubscribe@egroups.com








------------------------ ---------------------~-->
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and no minimums.
FREE Money 2002.
http://us.click.yahoo.com/k6cvND/n97DAA ... /XoTolB/TM
---------------------------------------------------------------------~->

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milehial2000

Brake booster question

Post by milehial2000 »

Pump might be needed but how about a reserve vacuum tank after the
check valve ? I have a pressure tank around here from a air suspension
conversion that I might try and I would imagine one would be cheap
from a parts yard as it is the only part of that system that wasn't a
chronic failure item when the cars got older.
AL(CO)




--- In BC-BFLegacyWorks@y..., Mark Ward <mark@r...> wrote:
> So this is why when I left foot brake in a corner and apply power, i
loose
> all my brake boost. I see...
> Any ideas how this can be fixed? Air pump?
> Mark
>
>
> -----Original Message-----
> From: milehial2000 [mailto:acroxford@h...]
> Sent: Wednesday, April 10, 2002 9:14 PM
> To: BC-BFLegacyWorks@y...
> Subject: [BC-BFLegacyWorks] Re: Brake booster question
>
>
> The valve allows the engine to apply vacuum to the booster but when
> the pressure in the manifold exceeds the pressure in the booster the
> valve closes. I first noticed this on a n/a engine it was probably
> there to prevent pressure from a backfire reaching the booster I
think
> pressure does bad things to the boosters and the booster used with
ABS
> is supposedly very expensive.
> AL(CO)
>
>
> --- In BC-BFLegacyWorks@y..., "Josh Colombo" <josh@s...> wrote:
> > so....if the valve closes when under pressure.....how do you get
> vacuum then? how does the brake booster still work?
> >
> > ************************************
> > Josh Colombo
> > Josh@s... <mailto:Josh@s...>
> >
> > "Life, an ever-changing melody
> > of beats and rhythm" - ME
> > ************************************
> >
> >
> > -----Original Message-----
> > From: milehial2000 [mailto:acroxford@h...]
> > Sent: Wednesday, April 10, 2002 9:31 PM
> > To: BC-BFLegacyWorks@y...
> > Subject: [BC-BFLegacyWorks] Re: Brake booster question
> >
> >
> > There is a one-way valve in the hose from the manifold to the
> booster
> > and I mean IN the hose you probably won't be able to see it I am
not
> > sure how they got the valve inside the hose but it is there. You
> will
> > see a the hose and it will say ENGINE under the arrow so that the
> > hose stands a chance of being installed right.
> > AL(CO)
> >
> >
> > --- In BC-BFLegacyWorks@y..., "Josh Colombo" <josh@s...> wrote:
> > > Ok.....I got a question for you turbo owners. I was doin some
> > playin around with some cleaner on my car last weekend....and I
> hooked
> > it up to the brake booster vacuum line to suck it into the
> > intake.......I got to thinking......on a turbo line.....sure
you're
> > goin to have intake manifold vacuum at idle....but on spoolin up
the
> > turbo...pressure in the manifold goes to positive pressure....ie
no
> > vacuum.......is the brake booster still hooked up to the intake
> > manifold on the turbo cars? Or is there some other place to
source
> > vacuum from........if it's hooked up the same......how does the
> brake
> > booster work with positive pressure?
> > >
> > > Anyone....anyone?
> > >
> > > Thanks
> > >
> > > Josh
> > > ************************************
> > > Josh Colombo
> > > <mailto:Josh@s...> Josh@s...
> > >
> > > "Life, an ever-changing melody
> > > of beats and rhythm" - ME
> > > ************************************
> >
> >
> >
> > To unsubscribe from this group, please send an email to:
> > BC-BFLegacyWorks-unsubscribe@e...
> >
> >
> >
> > Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
>
> To unsubscribe from this group, please send an email to:
> BC-BFLegacyWorks-unsubscribe@e...
>
>
>
> Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/


------------------------ ---------------------~-->
Buy Stock for $4
and no minimums.
FREE Money 2002.
http://us.click.yahoo.com/k6cvND/n97DAA ... /XoTolB/TM
---------------------------------------------------------------------~->

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