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No Ported Vacuum
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 |
Re: No Ported Vacuum
Because the vacuum at that port depends on load? Have you triple-checked to
make sure that it is the correct port? Earle "steve" <None@nothing.com> wrote in message news:41i9f.6192$D13.468@newssvr11.news.prodigy.com ... > Hi All, > > I am not getting any ported vacuum going to my EGR valve. I checked the vac > at the connection that is on the top of the Carter BBD - the one on the > engine side of the carb and there is no vacuum at any RPM. Anyone have any > ideas why? > > Thanks in advance, > Steve > > > |
Re: No Ported Vacuum
Because the vacuum at that port depends on load? Have you triple-checked to
make sure that it is the correct port? Earle "steve" <None@nothing.com> wrote in message news:41i9f.6192$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 > > > |
Re: No Ported Vacuum
Because the vacuum at that port depends on load? Have you triple-checked to
make sure that it is the correct port? Earle "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 > > > |
Re: No Ported Vacuum
Then I would guess someone put the carb's base gaskets on wrong. There
are channels in them that direct the vacuum flow. Do you have manifold vacuum at any ports? Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Aug./05 http://www.imagestation.com/album/in...?id=2120343242 (More Off Road album links at bottom of the view page) steve wrote: > > 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 |
Re: No Ported Vacuum
Then I would guess someone put the carb's base gaskets on wrong. There
are channels in them that direct the vacuum flow. Do you have manifold vacuum at any ports? Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Aug./05 http://www.imagestation.com/album/in...?id=2120343242 (More Off Road album links at bottom of the view page) steve wrote: > > 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 |
Re: No Ported Vacuum
Then I would guess someone put the carb's base gaskets on wrong. There
are channels in them that direct the vacuum flow. Do you have manifold vacuum at any ports? Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Aug./05 http://www.imagestation.com/album/in...?id=2120343242 (More Off Road album links at bottom of the view page) steve wrote: > > 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 |
Re: No Ported Vacuum
One other thing, the hole could just be plugged. Maybe try spraying
some carb cleaner into the nipple to see if it comes out on the inside. Mike Mike Romain wrote: > > Then I would guess someone put the carb's base gaskets on wrong. There > are channels in them that direct the vacuum flow. > > Do you have manifold vacuum at any ports? > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > Canadian Off Road Trips Photos: Non members can still view! > Aug./05 http://www.imagestation.com/album/in...?id=2120343242 > (More Off Road album links at bottom of the view page) > > steve wrote: > > > > 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 |
Re: No Ported Vacuum
One other thing, the hole could just be plugged. Maybe try spraying
some carb cleaner into the nipple to see if it comes out on the inside. Mike Mike Romain wrote: > > Then I would guess someone put the carb's base gaskets on wrong. There > are channels in them that direct the vacuum flow. > > Do you have manifold vacuum at any ports? > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > Canadian Off Road Trips Photos: Non members can still view! > Aug./05 http://www.imagestation.com/album/in...?id=2120343242 > (More Off Road album links at bottom of the view page) > > steve wrote: > > > > 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 |
Re: No Ported Vacuum
One other thing, the hole could just be plugged. Maybe try spraying
some carb cleaner into the nipple to see if it comes out on the inside. Mike Mike Romain wrote: > > Then I would guess someone put the carb's base gaskets on wrong. There > are channels in them that direct the vacuum flow. > > Do you have manifold vacuum at any ports? > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > Canadian Off Road Trips Photos: Non members can still view! > Aug./05 http://www.imagestation.com/album/in...?id=2120343242 > (More Off Road album links at bottom of the view page) > > steve wrote: > > > > 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 |
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