You should do that within walking distance of home. ;-)
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/


DougW wrote:
>
> Erm.. don't use icewater, that is bad. Just plain ol water dribbled down
> the intake is enough. The other is to use tranny fluid but it makes one
> hell of a smoke cloud. Another approach is called a Ferrari tuneup. You
> get up to speed and with the engine nice and warm, drop it one gear and
> nearly redline. That breaks up the carbon and sends it scooting out.
>
> --
> DougW

 

Theres a product out there called seafoam, can be found at lots of auto
stores, that the people on the Nissan Z message forums swear by to get rid
of carbon buildup and it "can" smoke like something else while doing the
treatment (do it at night if your concerned about the neighbors calling the
fire department).

I tried it in on my Z and the first treatment sent plumes of smoke into the
neighbors open garage up on the hill, he also happens to be the local
sherriff in my small town, but he didnt complain about it.

The second treatement yielded much less smoke, did it solve my pinging
problems in my Z, Not a Chance! That would have been too easy.

As for knocking, I dont think knocking at it's early stages sounds like a
coffee can full of marbles but more like what the name implies a knock, like
someone knocking on your door. I had a knock in my Z's lower end and
finally had to replace the motor. The tech thinks it was the piston rod
connections being loose causing the knock, I didnt bother to tear down the
motor as it was cheaper for my Z to just buy a jdm import used motor from
japan.

Good Luck,

"c" <c@me.org> wrote in message
news:_nydb.47239$eX1.14896@twister.rdc-kc.rr.com...
> It builds up on top of the pistons and in the combustion chambers. If an
> engine is in good mechanical condition (rings, valve guides, etc.), and is
> properly tuned, this isn't usually a problem. Add some oil or too much gas
> (rich fuel mixture) and that's when things can go bad. There are
> decarburizing chemicals that can be added to gasoline or even poured down
> the carb/throttle body. Some old timers used to slowly pour ice water down
> the carb while the engine was running, but I personally wouldn't advise
> that.
>
> Chris
>
>
> "William Oliveri" <wuji@bigvalley.net> wrote in message
> news:bl5vba$8cspv$1@ID-193866.news.uni-berlin.de...
> > I'm curious about carbon build up. Where does carbon build up
accumulate
> > and how is it removed?
> >
> > Thanks,
> >
> > bill
> >
> > "Simon Juncal" <sjuncal@erols.com> wrote in message
> > news:3F7671C7.5020409@erols.com...
> > >
> > >
> > > William Oliveri wrote:
> > > > I should mention I hear this the loudest when no torque is applied.
> > That
> > > > is, at idle and between shifting gears. I don't hear it when
applying
> > load
> > > > either light or heavy.
> > >
> > > That's not pinging... pinging sounds a lot like someone rattling a
spray
> > > paint can under your hood as you depress the gas pedal (getting faster
> > > as you rev higher). There's also "knocking" which is much like pinging
> > > both are caused by fuel detonating before or after it SHOULD. I've
heard
> > > knock described as sounding like shaking "a coffee can full of
marbles".
> > >
> > > > Is pinging more prominent under load? Does it get worse when more
> load
> > is
> > > > applied?
> > >
> > > Yes very much so. It's often caused by your engine being starved for
air
> > > (overly rich fuel mixture), carbon deposits (they get red hot and
become
> > > basically an uncontrolled source of ignition). Fouled plugs (the
carbon
> > > on them can glow just like heavy carbon buildup causing the same
> > > pre-ignition problem).
> > >
> > >
> > > > What does pinging tell about an engine? Does it indicate something
> > negative
> > > > about an engine?
> > >
> > > A number of possibilities include; Carbon build up, timing being off
or
> > > worn/slipping timing belt/chain, running gas at a lower octane than
what
> > > the ignition system is design to use. Air starvation: clogged or dirty
> > > air filter: clogged or malfunctioning air sensors (various types of
air
> > > flow sensors such as Mass Air etc.). A dirty enough throttle body, or
> > Carb.
> > >
> > > Anyway what you describe isn't likely "ping" but it does sound a lot
> > > like a sticky lifter, if the sound you're hearing is relatively
rhythmic
> > > but noticeable mostly when you're parked or moving slowly. It could be
a
> > > lifter. If the sound fades slowly in and out sometimes louder
sometimes
> > > quite. I'd bet on the lifter.
> > >
> >
> >
>
>


---
Outgoing mail is certified Virus Free.
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Version: 6.0.516 / Virus Database: 313 - Release Date: 9/1/2003

 

Theres a product out there called seafoam, can be found at lots of auto
stores, that the people on the Nissan Z message forums swear by to get rid
of carbon buildup and it "can" smoke like something else while doing the
treatment (do it at night if your concerned about the neighbors calling the
fire department).

I tried it in on my Z and the first treatment sent plumes of smoke into the
neighbors open garage up on the hill, he also happens to be the local
sherriff in my small town, but he didnt complain about it.

The second treatement yielded much less smoke, did it solve my pinging
problems in my Z, Not a Chance! That would have been too easy.

As for knocking, I dont think knocking at it's early stages sounds like a
coffee can full of marbles but more like what the name implies a knock, like
someone knocking on your door. I had a knock in my Z's lower end and
finally had to replace the motor. The tech thinks it was the piston rod
connections being loose causing the knock, I didnt bother to tear down the
motor as it was cheaper for my Z to just buy a jdm import used motor from
japan.

Good Luck,

"c" <c@me.org> wrote in message
news:_nydb.47239$eX1.14896@twister.rdc-kc.rr.com...
> It builds up on top of the pistons and in the combustion chambers. If an
> engine is in good mechanical condition (rings, valve guides, etc.), and is
> properly tuned, this isn't usually a problem. Add some oil or too much gas
> (rich fuel mixture) and that's when things can go bad. There are
> decarburizing chemicals that can be added to gasoline or even poured down
> the carb/throttle body. Some old timers used to slowly pour ice water down
> the carb while the engine was running, but I personally wouldn't advise
> that.
>
> Chris
>
>
> "William Oliveri" <wuji@bigvalley.net> wrote in message
> news:bl5vba$8cspv$1@ID-193866.news.uni-berlin.de...
> > I'm curious about carbon build up. Where does carbon build up
accumulate
> > and how is it removed?
> >
> > Thanks,
> >
> > bill
> >
> > "Simon Juncal" <sjuncal@erols.com> wrote in message
> > news:3F7671C7.5020409@erols.com...
> > >
> > >
> > > William Oliveri wrote:
> > > > I should mention I hear this the loudest when no torque is applied.
> > That
> > > > is, at idle and between shifting gears. I don't hear it when
applying
> > load
> > > > either light or heavy.
> > >
> > > That's not pinging... pinging sounds a lot like someone rattling a
spray
> > > paint can under your hood as you depress the gas pedal (getting faster
> > > as you rev higher). There's also "knocking" which is much like pinging
> > > both are caused by fuel detonating before or after it SHOULD. I've
heard
> > > knock described as sounding like shaking "a coffee can full of
marbles".
> > >
> > > > Is pinging more prominent under load? Does it get worse when more
> load
> > is
> > > > applied?
> > >
> > > Yes very much so. It's often caused by your engine being starved for
air
> > > (overly rich fuel mixture), carbon deposits (they get red hot and
become
> > > basically an uncontrolled source of ignition). Fouled plugs (the
carbon
> > > on them can glow just like heavy carbon buildup causing the same
> > > pre-ignition problem).
> > >
> > >
> > > > What does pinging tell about an engine? Does it indicate something
> > negative
> > > > about an engine?
> > >
> > > A number of possibilities include; Carbon build up, timing being off
or
> > > worn/slipping timing belt/chain, running gas at a lower octane than
what
> > > the ignition system is design to use. Air starvation: clogged or dirty
> > > air filter: clogged or malfunctioning air sensors (various types of
air
> > > flow sensors such as Mass Air etc.). A dirty enough throttle body, or
> > Carb.
> > >
> > > Anyway what you describe isn't likely "ping" but it does sound a lot
> > > like a sticky lifter, if the sound you're hearing is relatively
rhythmic
> > > but noticeable mostly when you're parked or moving slowly. It could be
a
> > > lifter. If the sound fades slowly in and out sometimes louder
sometimes
> > > quite. I'd bet on the lifter.
> > >
> >
> >
>
>


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.516 / Virus Database: 313 - Release Date: 9/1/2003

 

L.W.(ßill) ------ III wrote:
> You should do that within walking distance of home. ;-)

LOL, got to agree with that.

 

L.W.(ßill) ------ III wrote:
> You should do that within walking distance of home. ;-)

LOL, got to agree with that.

 

GamePlayer No. 1058 wrote:
> As for knocking, I dont think knocking at it's early stages sounds like a
> coffee can full of marbles but more like what the name implies a knock, like
> someone knocking on your door. I had a knock in my Z's lower end and
> finally had to replace the motor. The tech thinks it was the piston rod
> connections being loose causing the knock, I didnt bother to tear down the
> motor as it was cheaper for my Z to just buy a jdm import used motor from
> japan.

Knock as I'm describing it is a combustion related noise, it's basically
fuel exploding too early. Other things can knock (rod knock) and even
some "knock" can be created if you drive a knocking/pinging engine hard
enough (i.e. break it).

 

GamePlayer No. 1058 wrote:
> As for knocking, I dont think knocking at it's early stages sounds like a
> coffee can full of marbles but more like what the name implies a knock, like
> someone knocking on your door. I had a knock in my Z's lower end and
> finally had to replace the motor. The tech thinks it was the piston rod
> connections being loose causing the knock, I didnt bother to tear down the
> motor as it was cheaper for my Z to just buy a jdm import used motor from
> japan.

Knock as I'm describing it is a combustion related noise, it's basically
fuel exploding too early. Other things can knock (rod knock) and even
some "knock" can be created if you drive a knocking/pinging engine hard
enough (i.e. break it).

 

Hmmm... I don't know how one could possibly detect this. After I
crank up Eminem on the stereo I can't hear any engine sounds
whatsoever. ;-)




>
> That's not pinging... pinging sounds a lot like someone rattling a spray
> paint can under your hood as you depress the gas pedal (getting faster
> as you rev higher). There's also "knocking" which is much like pinging
> both are caused by fuel detonating before or after it SHOULD. I've heard
> knock described as sounding like shaking "a coffee can full of marbles".
>

 

Hmmm... I don't know how one could possibly detect this. After I
crank up Eminem on the stereo I can't hear any engine sounds
whatsoever. ;-)




>
> That's not pinging... pinging sounds a lot like someone rattling a spray
> paint can under your hood as you depress the gas pedal (getting faster
> as you rev higher). There's also "knocking" which is much like pinging
> both are caused by fuel detonating before or after it SHOULD. I've heard
> knock described as sounding like shaking "a coffee can full of marbles".
>

 

It's all coming clear to me now...

Joshua Nelson wrote:

> Hmmm... I don't know how one could possibly detect this. After I
> crank up Eminem on the stereo I can't hear any engine sounds
> whatsoever. ;-)
>
>
>
>
>
>>That's not pinging... pinging sounds a lot like someone rattling a spray
>>paint can under your hood as you depress the gas pedal (getting faster
>>as you rev higher). There's also "knocking" which is much like pinging
>>both are caused by fuel detonating before or after it SHOULD. I've heard
>>knock described as sounding like shaking "a coffee can full of marbles".
>>

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03 TJ Rubicon
01 XJ Sport

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