No Ported Vacuum
11-01-2005, 02:37 PM
#21
Guest
Posts: n/a
Re: No Ported Vacuum
Hi Steve,
I don't know how the AMC six is set up, other than the diagram at:
http://home.sprynet.com/~dale02/vac-egr.htm On my Ford there are many
valves the vacuum goes through on the way toe Exhaust Gases Recycling
valve. Remember you don't want it wide open pouring exhaust into the
intake manifold at idle. So on a Ford one of the control valves is
operate by the venturi vacuum port that only has vacuum with the high
velocity of air passing through the venturi, which looks like this on a
Ford: http://www.----------.com/decelValve.jpg
God Bless America, Bill O|||||||O
mailto:--------------------
steve wrote:
>
> Thanks for all the advice...but, I have checked if the port is clear
> (sprayed cleaner through it), the carb gasget has never been removed or
> replaced, and I do have vacuum at the manifold ports. When you say the
> ported vacuum depends on load, should I still get some vacuum if I just rev
> the engine?
>
> "steve" <None@nothing.com> wrote in message
> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
> > Hi All,
> >
> > I am not getting any ported vacuum going to my EGR valve. I checked the
> > vac at the connection that is on the top of the Carter BBD - the one on
> > the engine side of the carb and there is no vacuum at any RPM. Anyone
> > have any ideas why?
> >
> > Thanks in advance,
> > Steve
> >
I don't know how the AMC six is set up, other than the diagram at:
http://home.sprynet.com/~dale02/vac-egr.htm On my Ford there are many
valves the vacuum goes through on the way toe Exhaust Gases Recycling
valve. Remember you don't want it wide open pouring exhaust into the
intake manifold at idle. So on a Ford one of the control valves is
operate by the venturi vacuum port that only has vacuum with the high
velocity of air passing through the venturi, which looks like this on a
Ford: http://www.----------.com/decelValve.jpg
God Bless America, Bill O|||||||O
mailto:--------------------
steve wrote:
>
> Thanks for all the advice...but, I have checked if the port is clear
> (sprayed cleaner through it), the carb gasget has never been removed or
> replaced, and I do have vacuum at the manifold ports. When you say the
> ported vacuum depends on load, should I still get some vacuum if I just rev
> the engine?
>
> "steve" <None@nothing.com> wrote in message
> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
> > Hi All,
> >
> > I am not getting any ported vacuum going to my EGR valve. I checked the
> > vac at the connection that is on the top of the Carter BBD - the one on
> > the engine side of the carb and there is no vacuum at any RPM. Anyone
> > have any ideas why?
> >
> > Thanks in advance,
> > Steve
> >
11-01-2005, 02:37 PM
#22
Guest
Posts: n/a
Re: No Ported Vacuum
Hi Steve,
I don't know how the AMC six is set up, other than the diagram at:
http://home.sprynet.com/~dale02/vac-egr.htm On my Ford there are many
valves the vacuum goes through on the way toe Exhaust Gases Recycling
valve. Remember you don't want it wide open pouring exhaust into the
intake manifold at idle. So on a Ford one of the control valves is
operate by the venturi vacuum port that only has vacuum with the high
velocity of air passing through the venturi, which looks like this on a
Ford: http://www.----------.com/decelValve.jpg
God Bless America, Bill O|||||||O
mailto:--------------------
steve wrote:
>
> Thanks for all the advice...but, I have checked if the port is clear
> (sprayed cleaner through it), the carb gasget has never been removed or
> replaced, and I do have vacuum at the manifold ports. When you say the
> ported vacuum depends on load, should I still get some vacuum if I just rev
> the engine?
>
> "steve" <None@nothing.com> wrote in message
> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
> > Hi All,
> >
> > I am not getting any ported vacuum going to my EGR valve. I checked the
> > vac at the connection that is on the top of the Carter BBD - the one on
> > the engine side of the carb and there is no vacuum at any RPM. Anyone
> > have any ideas why?
> >
> > Thanks in advance,
> > Steve
> >
I don't know how the AMC six is set up, other than the diagram at:
http://home.sprynet.com/~dale02/vac-egr.htm On my Ford there are many
valves the vacuum goes through on the way toe Exhaust Gases Recycling
valve. Remember you don't want it wide open pouring exhaust into the
intake manifold at idle. So on a Ford one of the control valves is
operate by the venturi vacuum port that only has vacuum with the high
velocity of air passing through the venturi, which looks like this on a
Ford: http://www.----------.com/decelValve.jpg
God Bless America, Bill O|||||||O
mailto:--------------------
steve wrote:
>
> Thanks for all the advice...but, I have checked if the port is clear
> (sprayed cleaner through it), the carb gasget has never been removed or
> replaced, and I do have vacuum at the manifold ports. When you say the
> ported vacuum depends on load, should I still get some vacuum if I just rev
> the engine?
>
> "steve" <None@nothing.com> wrote in message
> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
> > Hi All,
> >
> > I am not getting any ported vacuum going to my EGR valve. I checked the
> > vac at the connection that is on the top of the Carter BBD - the one on
> > the engine side of the carb and there is no vacuum at any RPM. Anyone
> > have any ideas why?
> >
> > Thanks in advance,
> > Steve
> >
11-01-2005, 03:23 PM
#23
Guest
Posts: n/a
Re: No Ported Vacuum
steve alleged...
> Thanks for all the advice...but, I have checked if the port is clear
> (sprayed cleaner through it), the carb gasget has never been removed or
> replaced, and I do have vacuum at the manifold ports. When you say the
> ported vacuum depends on load, should I still get some vacuum if I just rev
> the engine?
>
> "steve" <None@nothing.com> wrote in message
> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
> > Hi All,
> >
> > I am not getting any ported vacuum going to my EGR valve. I checked the
> > vac at the connection that is on the top of the Carter BBD - the one on
> > the engine side of the carb and there is no vacuum at any RPM. Anyone
> > have any ideas why?
> >
> > Thanks in advance,
> > Steve
> >
>
>
>
If you briefly crack the throttle maybe a quarter open, you should
definitely see vacuum at the port. You should be able to feel it with your
finger, and it's enough to pull the EGR open slightly.
Assuming you find that you do indeed have ported vacuum, the EGR should
still not work if the engine is not warmed up. Check this diagram:
http://home.sprynet.com/~dale02/vac-egr.htm
Check for vacuum at the carb port, in/out of the CTO, and in/out of the TVS
in the air cleaner.
Check the canister purge line for a massive leak.
--
Dale Beckett
> Thanks for all the advice...but, I have checked if the port is clear
> (sprayed cleaner through it), the carb gasget has never been removed or
> replaced, and I do have vacuum at the manifold ports. When you say the
> ported vacuum depends on load, should I still get some vacuum if I just rev
> the engine?
>
> "steve" <None@nothing.com> wrote in message
> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
> > Hi All,
> >
> > I am not getting any ported vacuum going to my EGR valve. I checked the
> > vac at the connection that is on the top of the Carter BBD - the one on
> > the engine side of the carb and there is no vacuum at any RPM. Anyone
> > have any ideas why?
> >
> > Thanks in advance,
> > Steve
> >
>
>
>
If you briefly crack the throttle maybe a quarter open, you should
definitely see vacuum at the port. You should be able to feel it with your
finger, and it's enough to pull the EGR open slightly.
Assuming you find that you do indeed have ported vacuum, the EGR should
still not work if the engine is not warmed up. Check this diagram:
http://home.sprynet.com/~dale02/vac-egr.htm
Check for vacuum at the carb port, in/out of the CTO, and in/out of the TVS
in the air cleaner.
Check the canister purge line for a massive leak.
--
Dale Beckett
11-01-2005, 03:23 PM
#24
Guest
Posts: n/a
Re: No Ported Vacuum
steve alleged...
> Thanks for all the advice...but, I have checked if the port is clear
> (sprayed cleaner through it), the carb gasget has never been removed or
> replaced, and I do have vacuum at the manifold ports. When you say the
> ported vacuum depends on load, should I still get some vacuum if I just rev
> the engine?
>
> "steve" <None@nothing.com> wrote in message
> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
> > Hi All,
> >
> > I am not getting any ported vacuum going to my EGR valve. I checked the
> > vac at the connection that is on the top of the Carter BBD - the one on
> > the engine side of the carb and there is no vacuum at any RPM. Anyone
> > have any ideas why?
> >
> > Thanks in advance,
> > Steve
> >
>
>
>
If you briefly crack the throttle maybe a quarter open, you should
definitely see vacuum at the port. You should be able to feel it with your
finger, and it's enough to pull the EGR open slightly.
Assuming you find that you do indeed have ported vacuum, the EGR should
still not work if the engine is not warmed up. Check this diagram:
http://home.sprynet.com/~dale02/vac-egr.htm
Check for vacuum at the carb port, in/out of the CTO, and in/out of the TVS
in the air cleaner.
Check the canister purge line for a massive leak.
--
Dale Beckett
> Thanks for all the advice...but, I have checked if the port is clear
> (sprayed cleaner through it), the carb gasget has never been removed or
> replaced, and I do have vacuum at the manifold ports. When you say the
> ported vacuum depends on load, should I still get some vacuum if I just rev
> the engine?
>
> "steve" <None@nothing.com> wrote in message
> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
> > Hi All,
> >
> > I am not getting any ported vacuum going to my EGR valve. I checked the
> > vac at the connection that is on the top of the Carter BBD - the one on
> > the engine side of the carb and there is no vacuum at any RPM. Anyone
> > have any ideas why?
> >
> > Thanks in advance,
> > Steve
> >
>
>
>
If you briefly crack the throttle maybe a quarter open, you should
definitely see vacuum at the port. You should be able to feel it with your
finger, and it's enough to pull the EGR open slightly.
Assuming you find that you do indeed have ported vacuum, the EGR should
still not work if the engine is not warmed up. Check this diagram:
http://home.sprynet.com/~dale02/vac-egr.htm
Check for vacuum at the carb port, in/out of the CTO, and in/out of the TVS
in the air cleaner.
Check the canister purge line for a massive leak.
--
Dale Beckett
11-01-2005, 03:23 PM
#25
Guest
Posts: n/a
Re: No Ported Vacuum
steve alleged...
> Thanks for all the advice...but, I have checked if the port is clear
> (sprayed cleaner through it), the carb gasget has never been removed or
> replaced, and I do have vacuum at the manifold ports. When you say the
> ported vacuum depends on load, should I still get some vacuum if I just rev
> the engine?
>
> "steve" <None@nothing.com> wrote in message
> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
> > Hi All,
> >
> > I am not getting any ported vacuum going to my EGR valve. I checked the
> > vac at the connection that is on the top of the Carter BBD - the one on
> > the engine side of the carb and there is no vacuum at any RPM. Anyone
> > have any ideas why?
> >
> > Thanks in advance,
> > Steve
> >
>
>
>
If you briefly crack the throttle maybe a quarter open, you should
definitely see vacuum at the port. You should be able to feel it with your
finger, and it's enough to pull the EGR open slightly.
Assuming you find that you do indeed have ported vacuum, the EGR should
still not work if the engine is not warmed up. Check this diagram:
http://home.sprynet.com/~dale02/vac-egr.htm
Check for vacuum at the carb port, in/out of the CTO, and in/out of the TVS
in the air cleaner.
Check the canister purge line for a massive leak.
--
Dale Beckett
> Thanks for all the advice...but, I have checked if the port is clear
> (sprayed cleaner through it), the carb gasget has never been removed or
> replaced, and I do have vacuum at the manifold ports. When you say the
> ported vacuum depends on load, should I still get some vacuum if I just rev
> the engine?
>
> "steve" <None@nothing.com> wrote in message
> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
> > Hi All,
> >
> > I am not getting any ported vacuum going to my EGR valve. I checked the
> > vac at the connection that is on the top of the Carter BBD - the one on
> > the engine side of the carb and there is no vacuum at any RPM. Anyone
> > have any ideas why?
> >
> > Thanks in advance,
> > Steve
> >
>
>
>
If you briefly crack the throttle maybe a quarter open, you should
definitely see vacuum at the port. You should be able to feel it with your
finger, and it's enough to pull the EGR open slightly.
Assuming you find that you do indeed have ported vacuum, the EGR should
still not work if the engine is not warmed up. Check this diagram:
http://home.sprynet.com/~dale02/vac-egr.htm
Check for vacuum at the carb port, in/out of the CTO, and in/out of the TVS
in the air cleaner.
Check the canister purge line for a massive leak.
--
Dale Beckett
11-01-2005, 08:47 PM
#26
Guest
Posts: n/a
Re: No Ported Vacuum
The mid 70's Dodge system was similar. Vacuum only at raised engine speeds,
none at idle.
--
Billy_Ray@SPAM.fuse.net (remove SPAM)
2002 Jeep WJ 4 Liter Automatic
Sharing is why we are all here....... or should be.
..
"L.W. ("ßill") ------ III" <----------@***.net> wrote in message
news:4367C401.3E4B7E2F@***.net...
> Hi Steve,
> I don't know how the AMC six is set up, other than the diagram at:
> http://home.sprynet.com/~dale02/vac-egr.htm On my Ford there are many
> valves the vacuum goes through on the way toe Exhaust Gases Recycling
> valve. Remember you don't want it wide open pouring exhaust into the
> intake manifold at idle. So on a Ford one of the control valves is
> operate by the venturi vacuum port that only has vacuum with the high
> velocity of air passing through the venturi, which looks like this on a
> Ford: http://www.----------.com/decelValve.jpg
> God Bless America, Bill O|||||||O
> mailto:--------------------
>
> steve wrote:
>>
>> Thanks for all the advice...but, I have checked if the port is clear
>> (sprayed cleaner through it), the carb gasget has never been removed or
>> replaced, and I do have vacuum at the manifold ports. When you say the
>> ported vacuum depends on load, should I still get some vacuum if I just
>> rev
>> the engine?
>>
>> "steve" <None@nothing.com> wrote in message
>> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
>> > Hi All,
>> >
>> > I am not getting any ported vacuum going to my EGR valve. I checked
>> > the
>> > vac at the connection that is on the top of the Carter BBD - the one on
>> > the engine side of the carb and there is no vacuum at any RPM. Anyone
>> > have any ideas why?
>> >
>> > Thanks in advance,
>> > Steve
>> >
none at idle.
--
Billy_Ray@SPAM.fuse.net (remove SPAM)
2002 Jeep WJ 4 Liter Automatic
Sharing is why we are all here....... or should be.
..
"L.W. ("ßill") ------ III" <----------@***.net> wrote in message
news:4367C401.3E4B7E2F@***.net...
> Hi Steve,
> I don't know how the AMC six is set up, other than the diagram at:
> http://home.sprynet.com/~dale02/vac-egr.htm On my Ford there are many
> valves the vacuum goes through on the way toe Exhaust Gases Recycling
> valve. Remember you don't want it wide open pouring exhaust into the
> intake manifold at idle. So on a Ford one of the control valves is
> operate by the venturi vacuum port that only has vacuum with the high
> velocity of air passing through the venturi, which looks like this on a
> Ford: http://www.----------.com/decelValve.jpg
> God Bless America, Bill O|||||||O
> mailto:--------------------
>
> steve wrote:
>>
>> Thanks for all the advice...but, I have checked if the port is clear
>> (sprayed cleaner through it), the carb gasget has never been removed or
>> replaced, and I do have vacuum at the manifold ports. When you say the
>> ported vacuum depends on load, should I still get some vacuum if I just
>> rev
>> the engine?
>>
>> "steve" <None@nothing.com> wrote in message
>> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
>> > Hi All,
>> >
>> > I am not getting any ported vacuum going to my EGR valve. I checked
>> > the
>> > vac at the connection that is on the top of the Carter BBD - the one on
>> > the engine side of the carb and there is no vacuum at any RPM. Anyone
>> > have any ideas why?
>> >
>> > Thanks in advance,
>> > Steve
>> >
11-01-2005, 08:47 PM
#27
Guest
Posts: n/a
Re: No Ported Vacuum
The mid 70's Dodge system was similar. Vacuum only at raised engine speeds,
none at idle.
--
Billy_Ray@SPAM.fuse.net (remove SPAM)
2002 Jeep WJ 4 Liter Automatic
Sharing is why we are all here....... or should be.
..
"L.W. ("ßill") ------ III" <----------@***.net> wrote in message
news:4367C401.3E4B7E2F@***.net...
> Hi Steve,
> I don't know how the AMC six is set up, other than the diagram at:
> http://home.sprynet.com/~dale02/vac-egr.htm On my Ford there are many
> valves the vacuum goes through on the way toe Exhaust Gases Recycling
> valve. Remember you don't want it wide open pouring exhaust into the
> intake manifold at idle. So on a Ford one of the control valves is
> operate by the venturi vacuum port that only has vacuum with the high
> velocity of air passing through the venturi, which looks like this on a
> Ford: http://www.----------.com/decelValve.jpg
> God Bless America, Bill O|||||||O
> mailto:--------------------
>
> steve wrote:
>>
>> Thanks for all the advice...but, I have checked if the port is clear
>> (sprayed cleaner through it), the carb gasget has never been removed or
>> replaced, and I do have vacuum at the manifold ports. When you say the
>> ported vacuum depends on load, should I still get some vacuum if I just
>> rev
>> the engine?
>>
>> "steve" <None@nothing.com> wrote in message
>> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
>> > Hi All,
>> >
>> > I am not getting any ported vacuum going to my EGR valve. I checked
>> > the
>> > vac at the connection that is on the top of the Carter BBD - the one on
>> > the engine side of the carb and there is no vacuum at any RPM. Anyone
>> > have any ideas why?
>> >
>> > Thanks in advance,
>> > Steve
>> >
none at idle.
--
Billy_Ray@SPAM.fuse.net (remove SPAM)
2002 Jeep WJ 4 Liter Automatic
Sharing is why we are all here....... or should be.
..
"L.W. ("ßill") ------ III" <----------@***.net> wrote in message
news:4367C401.3E4B7E2F@***.net...
> Hi Steve,
> I don't know how the AMC six is set up, other than the diagram at:
> http://home.sprynet.com/~dale02/vac-egr.htm On my Ford there are many
> valves the vacuum goes through on the way toe Exhaust Gases Recycling
> valve. Remember you don't want it wide open pouring exhaust into the
> intake manifold at idle. So on a Ford one of the control valves is
> operate by the venturi vacuum port that only has vacuum with the high
> velocity of air passing through the venturi, which looks like this on a
> Ford: http://www.----------.com/decelValve.jpg
> God Bless America, Bill O|||||||O
> mailto:--------------------
>
> steve wrote:
>>
>> Thanks for all the advice...but, I have checked if the port is clear
>> (sprayed cleaner through it), the carb gasget has never been removed or
>> replaced, and I do have vacuum at the manifold ports. When you say the
>> ported vacuum depends on load, should I still get some vacuum if I just
>> rev
>> the engine?
>>
>> "steve" <None@nothing.com> wrote in message
>> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
>> > Hi All,
>> >
>> > I am not getting any ported vacuum going to my EGR valve. I checked
>> > the
>> > vac at the connection that is on the top of the Carter BBD - the one on
>> > the engine side of the carb and there is no vacuum at any RPM. Anyone
>> > have any ideas why?
>> >
>> > Thanks in advance,
>> > Steve
>> >
11-01-2005, 08:47 PM
#28
Guest
Posts: n/a
Re: No Ported Vacuum
The mid 70's Dodge system was similar. Vacuum only at raised engine speeds,
none at idle.
--
Billy_Ray@SPAM.fuse.net (remove SPAM)
2002 Jeep WJ 4 Liter Automatic
Sharing is why we are all here....... or should be.
..
"L.W. ("ßill") ------ III" <----------@***.net> wrote in message
news:4367C401.3E4B7E2F@***.net...
> Hi Steve,
> I don't know how the AMC six is set up, other than the diagram at:
> http://home.sprynet.com/~dale02/vac-egr.htm On my Ford there are many
> valves the vacuum goes through on the way toe Exhaust Gases Recycling
> valve. Remember you don't want it wide open pouring exhaust into the
> intake manifold at idle. So on a Ford one of the control valves is
> operate by the venturi vacuum port that only has vacuum with the high
> velocity of air passing through the venturi, which looks like this on a
> Ford: http://www.----------.com/decelValve.jpg
> God Bless America, Bill O|||||||O
> mailto:--------------------
>
> steve wrote:
>>
>> Thanks for all the advice...but, I have checked if the port is clear
>> (sprayed cleaner through it), the carb gasget has never been removed or
>> replaced, and I do have vacuum at the manifold ports. When you say the
>> ported vacuum depends on load, should I still get some vacuum if I just
>> rev
>> the engine?
>>
>> "steve" <None@nothing.com> wrote in message
>> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
>> > Hi All,
>> >
>> > I am not getting any ported vacuum going to my EGR valve. I checked
>> > the
>> > vac at the connection that is on the top of the Carter BBD - the one on
>> > the engine side of the carb and there is no vacuum at any RPM. Anyone
>> > have any ideas why?
>> >
>> > Thanks in advance,
>> > Steve
>> >
none at idle.
--
Billy_Ray@SPAM.fuse.net (remove SPAM)
2002 Jeep WJ 4 Liter Automatic
Sharing is why we are all here....... or should be.
..
"L.W. ("ßill") ------ III" <----------@***.net> wrote in message
news:4367C401.3E4B7E2F@***.net...
> Hi Steve,
> I don't know how the AMC six is set up, other than the diagram at:
> http://home.sprynet.com/~dale02/vac-egr.htm On my Ford there are many
> valves the vacuum goes through on the way toe Exhaust Gases Recycling
> valve. Remember you don't want it wide open pouring exhaust into the
> intake manifold at idle. So on a Ford one of the control valves is
> operate by the venturi vacuum port that only has vacuum with the high
> velocity of air passing through the venturi, which looks like this on a
> Ford: http://www.----------.com/decelValve.jpg
> God Bless America, Bill O|||||||O
> mailto:--------------------
>
> steve wrote:
>>
>> Thanks for all the advice...but, I have checked if the port is clear
>> (sprayed cleaner through it), the carb gasget has never been removed or
>> replaced, and I do have vacuum at the manifold ports. When you say the
>> ported vacuum depends on load, should I still get some vacuum if I just
>> rev
>> the engine?
>>
>> "steve" <None@nothing.com> wrote in message
>> news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ...
>> > Hi All,
>> >
>> > I am not getting any ported vacuum going to my EGR valve. I checked
>> > the
>> > vac at the connection that is on the top of the Carter BBD - the one on
>> > the engine side of the carb and there is no vacuum at any RPM. Anyone
>> > have any ideas why?
>> >
>> > Thanks in advance,
>> > Steve
>> >
11-01-2005, 11:26 PM
#29
Guest
Posts: n/a
Re: No Ported Vacuum
Hi Bill,
I think on all carburated cars there's the venturi vacuum, and
located at the venturi level, that's the area that shrinks down to
create a draw to suck the gasoline out of the float bowls, as the full
vacuum should be call manifold, and that port should be below the
throttle butterfly plates.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
Billy Ray wrote:
>
> The mid 70's Dodge system was similar. Vacuum only at raised engine speeds,
> none at idle.
>
> --
> Billy_Ray@SPAM.fuse.net (remove SPAM)
> 2002 Jeep WJ 4 Liter Automatic
> Sharing is why we are all here....... or should be.
I think on all carburated cars there's the venturi vacuum, and
located at the venturi level, that's the area that shrinks down to
create a draw to suck the gasoline out of the float bowls, as the full
vacuum should be call manifold, and that port should be below the
throttle butterfly plates.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
Billy Ray wrote:
>
> The mid 70's Dodge system was similar. Vacuum only at raised engine speeds,
> none at idle.
>
> --
> Billy_Ray@SPAM.fuse.net (remove SPAM)
> 2002 Jeep WJ 4 Liter Automatic
> Sharing is why we are all here....... or should be.
11-01-2005, 11:26 PM
#30
Guest
Posts: n/a
Re: No Ported Vacuum
Hi Bill,
I think on all carburated cars there's the venturi vacuum, and
located at the venturi level, that's the area that shrinks down to
create a draw to suck the gasoline out of the float bowls, as the full
vacuum should be call manifold, and that port should be below the
throttle butterfly plates.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
Billy Ray wrote:
>
> The mid 70's Dodge system was similar. Vacuum only at raised engine speeds,
> none at idle.
>
> --
> Billy_Ray@SPAM.fuse.net (remove SPAM)
> 2002 Jeep WJ 4 Liter Automatic
> Sharing is why we are all here....... or should be.
I think on all carburated cars there's the venturi vacuum, and
located at the venturi level, that's the area that shrinks down to
create a draw to suck the gasoline out of the float bowls, as the full
vacuum should be call manifold, and that port should be below the
throttle butterfly plates.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
Billy Ray wrote:
>
> The mid 70's Dodge system was similar. Vacuum only at raised engine speeds,
> none at idle.
>
> --
> Billy_Ray@SPAM.fuse.net (remove SPAM)
> 2002 Jeep WJ 4 Liter Automatic
> Sharing is why we are all here....... or should be.