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Foot Loose 02-04-2004 05:04 PM

Fuel pressure regulator??????
 
I got a problem, I put a weber carb on my 256 awhile back and have noticed
that it has been running rich. After many hours of adjusting and tweaking
the carb I called Weber and they said that I need to knock down my fuel
pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb needs
2.5-3psi. All the parts stores that I have talked to say that there is
nothing I can use to drop the pressure. I would think that there has to be
some sort of regulator that will output a fixed or adjustable pressure that
I can put in the fuel line after the pump. If anyone knows of a part # or
manufacture that I can get something to fix this I would be forever in your
debt. Thanks


Scott
90YJ



bowgus 02-04-2004 06:53 PM

Re: Fuel pressure regulator??????
 
For what it's worth ... the fuel pressure sounds ok to me (my V6 boat engine
spec is 3-7 psi). You need that pressure to supply sufficient fuel at
running speed. Might I suggest the carb may have been modified either for a
larger engine or by someone to run rich(er) ... meaning the primary
jets/metering rods (I'm a 4 bbl guy, excuse my ignorance here) may be
"oversize".

"Foot Loose" <footloose61@ NOSPAM hotmail.com> wrote in message
news:40216b30_3@newspeer2.tds.net...
> I got a problem, I put a weber carb on my 256 awhile back and have noticed
> that it has been running rich. After many hours of adjusting and tweaking
> the carb I called Weber and they said that I need to knock down my fuel
> pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb

needs
> 2.5-3psi. All the parts stores that I have talked to say that there is
> nothing I can use to drop the pressure. I would think that there has to be
> some sort of regulator that will output a fixed or adjustable pressure

that
> I can put in the fuel line after the pump. If anyone knows of a part # or
> manufacture that I can get something to fix this I would be forever in

your
> debt. Thanks
>
>
> Scott
> 90YJ
>
>




bowgus 02-04-2004 06:53 PM

Re: Fuel pressure regulator??????
 
For what it's worth ... the fuel pressure sounds ok to me (my V6 boat engine
spec is 3-7 psi). You need that pressure to supply sufficient fuel at
running speed. Might I suggest the carb may have been modified either for a
larger engine or by someone to run rich(er) ... meaning the primary
jets/metering rods (I'm a 4 bbl guy, excuse my ignorance here) may be
"oversize".

"Foot Loose" <footloose61@ NOSPAM hotmail.com> wrote in message
news:40216b30_3@newspeer2.tds.net...
> I got a problem, I put a weber carb on my 256 awhile back and have noticed
> that it has been running rich. After many hours of adjusting and tweaking
> the carb I called Weber and they said that I need to knock down my fuel
> pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb

needs
> 2.5-3psi. All the parts stores that I have talked to say that there is
> nothing I can use to drop the pressure. I would think that there has to be
> some sort of regulator that will output a fixed or adjustable pressure

that
> I can put in the fuel line after the pump. If anyone knows of a part # or
> manufacture that I can get something to fix this I would be forever in

your
> debt. Thanks
>
>
> Scott
> 90YJ
>
>




bowgus 02-04-2004 06:53 PM

Re: Fuel pressure regulator??????
 
For what it's worth ... the fuel pressure sounds ok to me (my V6 boat engine
spec is 3-7 psi). You need that pressure to supply sufficient fuel at
running speed. Might I suggest the carb may have been modified either for a
larger engine or by someone to run rich(er) ... meaning the primary
jets/metering rods (I'm a 4 bbl guy, excuse my ignorance here) may be
"oversize".

"Foot Loose" <footloose61@ NOSPAM hotmail.com> wrote in message
news:40216b30_3@newspeer2.tds.net...
> I got a problem, I put a weber carb on my 256 awhile back and have noticed
> that it has been running rich. After many hours of adjusting and tweaking
> the carb I called Weber and they said that I need to knock down my fuel
> pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb

needs
> 2.5-3psi. All the parts stores that I have talked to say that there is
> nothing I can use to drop the pressure. I would think that there has to be
> some sort of regulator that will output a fixed or adjustable pressure

that
> I can put in the fuel line after the pump. If anyone knows of a part # or
> manufacture that I can get something to fix this I would be forever in

your
> debt. Thanks
>
>
> Scott
> 90YJ
>
>




bowgus 02-04-2004 07:00 PM

Re: Fuel pressure regulator??????
 
Also, if fuel is actually "leaking" past the float/needle valve and
"dripping" into the carb, check that out. It's the job of that assembly to
enable/disable fuel flow keeping the fuel bowl topped up. So you can see
where I'm going with this ... my thinking, the problem can in no way be
caused by 5-6 psi fuel pressure.


"bowgus" <Bowgus@rogers.com> wrote in message
news:UBfUb.152910$ef.141084@twister01.bloor.is.net .cable.rogers.com...
> For what it's worth ... the fuel pressure sounds ok to me (my V6 boat

engine
> spec is 3-7 psi). You need that pressure to supply sufficient fuel at
> running speed. Might I suggest the carb may have been modified either for

a
> larger engine or by someone to run rich(er) ... meaning the primary
> jets/metering rods (I'm a 4 bbl guy, excuse my ignorance here) may be
> "oversize".
>
> "Foot Loose" <footloose61@ NOSPAM hotmail.com> wrote in message
> news:40216b30_3@newspeer2.tds.net...
> > I got a problem, I put a weber carb on my 256 awhile back and have

noticed
> > that it has been running rich. After many hours of adjusting and

tweaking
> > the carb I called Weber and they said that I need to knock down my fuel
> > pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb

> needs
> > 2.5-3psi. All the parts stores that I have talked to say that there is
> > nothing I can use to drop the pressure. I would think that there has to

be
> > some sort of regulator that will output a fixed or adjustable pressure

> that
> > I can put in the fuel line after the pump. If anyone knows of a part #

or
> > manufacture that I can get something to fix this I would be forever in

> your
> > debt. Thanks
> >
> >
> > Scott
> > 90YJ
> >
> >

>
>




bowgus 02-04-2004 07:00 PM

Re: Fuel pressure regulator??????
 
Also, if fuel is actually "leaking" past the float/needle valve and
"dripping" into the carb, check that out. It's the job of that assembly to
enable/disable fuel flow keeping the fuel bowl topped up. So you can see
where I'm going with this ... my thinking, the problem can in no way be
caused by 5-6 psi fuel pressure.


"bowgus" <Bowgus@rogers.com> wrote in message
news:UBfUb.152910$ef.141084@twister01.bloor.is.net .cable.rogers.com...
> For what it's worth ... the fuel pressure sounds ok to me (my V6 boat

engine
> spec is 3-7 psi). You need that pressure to supply sufficient fuel at
> running speed. Might I suggest the carb may have been modified either for

a
> larger engine or by someone to run rich(er) ... meaning the primary
> jets/metering rods (I'm a 4 bbl guy, excuse my ignorance here) may be
> "oversize".
>
> "Foot Loose" <footloose61@ NOSPAM hotmail.com> wrote in message
> news:40216b30_3@newspeer2.tds.net...
> > I got a problem, I put a weber carb on my 256 awhile back and have

noticed
> > that it has been running rich. After many hours of adjusting and

tweaking
> > the carb I called Weber and they said that I need to knock down my fuel
> > pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb

> needs
> > 2.5-3psi. All the parts stores that I have talked to say that there is
> > nothing I can use to drop the pressure. I would think that there has to

be
> > some sort of regulator that will output a fixed or adjustable pressure

> that
> > I can put in the fuel line after the pump. If anyone knows of a part #

or
> > manufacture that I can get something to fix this I would be forever in

> your
> > debt. Thanks
> >
> >
> > Scott
> > 90YJ
> >
> >

>
>




bowgus 02-04-2004 07:00 PM

Re: Fuel pressure regulator??????
 
Also, if fuel is actually "leaking" past the float/needle valve and
"dripping" into the carb, check that out. It's the job of that assembly to
enable/disable fuel flow keeping the fuel bowl topped up. So you can see
where I'm going with this ... my thinking, the problem can in no way be
caused by 5-6 psi fuel pressure.


"bowgus" <Bowgus@rogers.com> wrote in message
news:UBfUb.152910$ef.141084@twister01.bloor.is.net .cable.rogers.com...
> For what it's worth ... the fuel pressure sounds ok to me (my V6 boat

engine
> spec is 3-7 psi). You need that pressure to supply sufficient fuel at
> running speed. Might I suggest the carb may have been modified either for

a
> larger engine or by someone to run rich(er) ... meaning the primary
> jets/metering rods (I'm a 4 bbl guy, excuse my ignorance here) may be
> "oversize".
>
> "Foot Loose" <footloose61@ NOSPAM hotmail.com> wrote in message
> news:40216b30_3@newspeer2.tds.net...
> > I got a problem, I put a weber carb on my 256 awhile back and have

noticed
> > that it has been running rich. After many hours of adjusting and

tweaking
> > the carb I called Weber and they said that I need to knock down my fuel
> > pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb

> needs
> > 2.5-3psi. All the parts stores that I have talked to say that there is
> > nothing I can use to drop the pressure. I would think that there has to

be
> > some sort of regulator that will output a fixed or adjustable pressure

> that
> > I can put in the fuel line after the pump. If anyone knows of a part #

or
> > manufacture that I can get something to fix this I would be forever in

> your
> > debt. Thanks
> >
> >
> > Scott
> > 90YJ
> >
> >

>
>




L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III 02-04-2004 07:12 PM

Re: Fuel pressure regulator??????
 
That would really surprise me, everything I can think of runs at
least seven pounds. New car injection at, at least forty pounds. I run
an Edelbrock mechanical pump at fifteen pounds and my 850 Holley double
pumper as no problems with it. However, I see in the Weber accessories,
a regulator at: http://www.piercemanifolds.com/linkage.htm
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Foot Loose wrote:
>
> I got a problem, I put a weber carb on my 256 awhile back and have noticed
> that it has been running rich. After many hours of adjusting and tweaking
> the carb I called Weber and they said that I need to knock down my fuel
> pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb needs
> 2.5-3psi. All the parts stores that I have talked to say that there is
> nothing I can use to drop the pressure. I would think that there has to be
> some sort of regulator that will output a fixed or adjustable pressure that
> I can put in the fuel line after the pump. If anyone knows of a part # or
> manufacture that I can get something to fix this I would be forever in your
> debt. Thanks
>
> Scott
> 90YJ


L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III 02-04-2004 07:12 PM

Re: Fuel pressure regulator??????
 
That would really surprise me, everything I can think of runs at
least seven pounds. New car injection at, at least forty pounds. I run
an Edelbrock mechanical pump at fifteen pounds and my 850 Holley double
pumper as no problems with it. However, I see in the Weber accessories,
a regulator at: http://www.piercemanifolds.com/linkage.htm
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Foot Loose wrote:
>
> I got a problem, I put a weber carb on my 256 awhile back and have noticed
> that it has been running rich. After many hours of adjusting and tweaking
> the carb I called Weber and they said that I need to knock down my fuel
> pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb needs
> 2.5-3psi. All the parts stores that I have talked to say that there is
> nothing I can use to drop the pressure. I would think that there has to be
> some sort of regulator that will output a fixed or adjustable pressure that
> I can put in the fuel line after the pump. If anyone knows of a part # or
> manufacture that I can get something to fix this I would be forever in your
> debt. Thanks
>
> Scott
> 90YJ


L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III 02-04-2004 07:12 PM

Re: Fuel pressure regulator??????
 
That would really surprise me, everything I can think of runs at
least seven pounds. New car injection at, at least forty pounds. I run
an Edelbrock mechanical pump at fifteen pounds and my 850 Holley double
pumper as no problems with it. However, I see in the Weber accessories,
a regulator at: http://www.piercemanifolds.com/linkage.htm
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Foot Loose wrote:
>
> I got a problem, I put a weber carb on my 256 awhile back and have noticed
> that it has been running rich. After many hours of adjusting and tweaking
> the carb I called Weber and they said that I need to knock down my fuel
> pressure. The mechanical fuel pump puts out aprox 5-6 psi and the carb needs
> 2.5-3psi. All the parts stores that I have talked to say that there is
> nothing I can use to drop the pressure. I would think that there has to be
> some sort of regulator that will output a fixed or adjustable pressure that
> I can put in the fuel line after the pump. If anyone knows of a part # or
> manufacture that I can get something to fix this I would be forever in your
> debt. Thanks
>
> Scott
> 90YJ



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