Re: PING again. Tested Fuel pressure. Came out ok.
 

"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bltimo$g9m0a$1@ID-193866.news.uni-berlin.de...
....
> You mentioned before regarding my spark plugs:
>
> "Black on one side of the white cone indicates bad or brand new
> valve guide seals... "
>
> Would this be a cause of ping?

No... ping is advanced timing, too much compression, or
lean. You just put on an MPI... look for vacuum leaks, is
all I can think. You've got a sticky one... maybe try mixing
some av gas in?
__
Steve
..

Re: PING again. Tested Fuel pressure. Came out ok.
 

"William Oliveri" <wuji@bigvalley.net> wrote in message
news:bltimo$g9m0a$1@ID-193866.news.uni-berlin.de...
....
> You mentioned before regarding my spark plugs:
>
> "Black on one side of the white cone indicates bad or brand new
> valve guide seals... "
>
> Would this be a cause of ping?

No... ping is advanced timing, too much compression, or
lean. You just put on an MPI... look for vacuum leaks, is
all I can think. You've got a sticky one... maybe try mixing
some av gas in?
__
Steve
..

Re: PING again. Tested Fuel pressure. Came out ok.
 

Every one of the Jeep MPI's call for 40 PSI until vacuum builds, then
back off to 30PSI. Hmmm... wonder how the new ones with the regulator
in the pump manage that?

On Tue, 7 Oct 2003 05:23:09 UTC L.W.(ßill) ------ III
<----------@cox.net> wrote:

> Every electronic fuel injection I know of runs forty pounds, screw
> it down.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> William Oliveri wrote:
> >
> > Hi all,
> >
> > The Pinging problem continues. I tested the fuel pressure today and it
> > comes out at or above what Hesco recommends:
> >
> > Hesco = 30 psi at idle
> > Mine = 31 -> 32 psi at idle
> >
> > Hesco = 34 -> 38 when driving
> > Mine = "Hose not long enough to stick out of the hood to see to test"
> >
> > So I couldn't test when driving unless I take the hood off which I'm not
> > opposed to doing I just didn't have time this evening.
> >
> > So I'm at a loss what to do next. I was warming up to the Adjustable Fuel
> > Pressure Regulator as a fix but if I'm in line with the pressure I'm suppose
> > to have then doesn't that leave that one out?
> >
> > Does this mean the 4.0L head is the only fix?
> >
> > Agggghhhh :-(


--
Will Honea <whonea@codenet.net>

Re: PING again. Tested Fuel pressure. Came out ok.
 

Every one of the Jeep MPI's call for 40 PSI until vacuum builds, then
back off to 30PSI. Hmmm... wonder how the new ones with the regulator
in the pump manage that?

On Tue, 7 Oct 2003 05:23:09 UTC L.W.(ßill) ------ III
<----------@cox.net> wrote:

> Every electronic fuel injection I know of runs forty pounds, screw
> it down.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> William Oliveri wrote:
> >
> > Hi all,
> >
> > The Pinging problem continues. I tested the fuel pressure today and it
> > comes out at or above what Hesco recommends:
> >
> > Hesco = 30 psi at idle
> > Mine = 31 -> 32 psi at idle
> >
> > Hesco = 34 -> 38 when driving
> > Mine = "Hose not long enough to stick out of the hood to see to test"
> >
> > So I couldn't test when driving unless I take the hood off which I'm not
> > opposed to doing I just didn't have time this evening.
> >
> > So I'm at a loss what to do next. I was warming up to the Adjustable Fuel
> > Pressure Regulator as a fix but if I'm in line with the pressure I'm suppose
> > to have then doesn't that leave that one out?
> >
> > Does this mean the 4.0L head is the only fix?
> >
> > Agggghhhh :-(


--
Will Honea <whonea@codenet.net>

Re: PING again. Tested Fuel pressure. Came out ok.
 

Every one of the Jeep MPI's call for 40 PSI until vacuum builds, then
back off to 30PSI. Hmmm... wonder how the new ones with the regulator
in the pump manage that?

On Tue, 7 Oct 2003 05:23:09 UTC L.W.(ßill) ------ III
<----------@cox.net> wrote:

> Every electronic fuel injection I know of runs forty pounds, screw
> it down.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> William Oliveri wrote:
> >
> > Hi all,
> >
> > The Pinging problem continues. I tested the fuel pressure today and it
> > comes out at or above what Hesco recommends:
> >
> > Hesco = 30 psi at idle
> > Mine = 31 -> 32 psi at idle
> >
> > Hesco = 34 -> 38 when driving
> > Mine = "Hose not long enough to stick out of the hood to see to test"
> >
> > So I couldn't test when driving unless I take the hood off which I'm not
> > opposed to doing I just didn't have time this evening.
> >
> > So I'm at a loss what to do next. I was warming up to the Adjustable Fuel
> > Pressure Regulator as a fix but if I'm in line with the pressure I'm suppose
> > to have then doesn't that leave that one out?
> >
> > Does this mean the 4.0L head is the only fix?
> >
> > Agggghhhh :-(


--
Will Honea <whonea@codenet.net>

Re: PING again. Tested Fuel pressure. Came out ok.
 

Thanks Steve,

What is av gas?

Bill
" Stephen Cowell" <scowell@sbcglobal.net> wrote in message
news:Vwygb.1$Wr.430099@newssvr30.news.prodigy.com. ..
>
> "William Oliveri" <wuji@bigvalley.net> wrote in message
> news:bltimo$g9m0a$1@ID-193866.news.uni-berlin.de...
> ...
> > You mentioned before regarding my spark plugs:
> >
> > "Black on one side of the white cone indicates bad or brand new
> > valve guide seals... "
> >
> > Would this be a cause of ping?
>
> No... ping is advanced timing, too much compression, or
> lean. You just put on an MPI... look for vacuum leaks, is
> all I can think. You've got a sticky one... maybe try mixing
> some av gas in?
> __
> Steve
> .
>
>

Re: PING again. Tested Fuel pressure. Came out ok.
 

Thanks Steve,

What is av gas?

Bill
" Stephen Cowell" <scowell@sbcglobal.net> wrote in message
news:Vwygb.1$Wr.430099@newssvr30.news.prodigy.com. ..
>
> "William Oliveri" <wuji@bigvalley.net> wrote in message
> news:bltimo$g9m0a$1@ID-193866.news.uni-berlin.de...
> ...
> > You mentioned before regarding my spark plugs:
> >
> > "Black on one side of the white cone indicates bad or brand new
> > valve guide seals... "
> >
> > Would this be a cause of ping?
>
> No... ping is advanced timing, too much compression, or
> lean. You just put on an MPI... look for vacuum leaks, is
> all I can think. You've got a sticky one... maybe try mixing
> some av gas in?
> __
> Steve
> .
>
>

Re: PING again. Tested Fuel pressure. Came out ok.
 

Thanks Steve,

What is av gas?

Bill
" Stephen Cowell" <scowell@sbcglobal.net> wrote in message
news:Vwygb.1$Wr.430099@newssvr30.news.prodigy.com. ..
>
> "William Oliveri" <wuji@bigvalley.net> wrote in message
> news:bltimo$g9m0a$1@ID-193866.news.uni-berlin.de...
> ...
> > You mentioned before regarding my spark plugs:
> >
> > "Black on one side of the white cone indicates bad or brand new
> > valve guide seals... "
> >
> > Would this be a cause of ping?
>
> No... ping is advanced timing, too much compression, or
> lean. You just put on an MPI... look for vacuum leaks, is
> all I can think. You've got a sticky one... maybe try mixing
> some av gas in?
> __
> Steve
> .
>
>

Re: PING again. Tested Fuel pressure. Came out ok.
 

Aviation.

William Oliveri wrote:
>
> Thanks Steve,
>
> What is av gas?
>
> Bill

Re: PING again. Tested Fuel pressure. Came out ok.
 

Aviation.

William Oliveri wrote:
>
> Thanks Steve,
>
> What is av gas?
>
> Bill