Where in South Texas? I lived in Harlingen for a year, 1960-61.
Wilton
----- Original Message -----
From: "Hans Neureiter" <diese...@gmail.com>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Monday, April 02, 2012 12:25 AM
Subject: Re: [MBZ] Glow plug question
Question comes from some one's post some weeks ago.
He replaced all GP's and had readings from good to bad, like 0.9 to 90+
Ohm
I know I have to replace # UNO.(DOS, TRES, QUATRO, CHINCO,?)
A PITA to get to and a small lump of denero.
God bless South Texas. It hardly ever snows.
All you snowmobile salesman, you're welcome, but first learn to rope a
goat.
I would like a some sort of technicaln input. MB,as always leaves us in
the
dark.
Now I'm getting peturbed. $250K AMG vs. my 30+ year old jewel.
FYAFIFH. (FH like in fish head)
On Sun, Apr 1, 2012 at 10:58 PM, Hans Neureiter <diese...@gmail.com>
wrote:
Touching the leads together reads 0.00 Ohms.
Meter is good. And it is not the idiot reading it.
Plugs have been there for the same time under the same conditons.
Question to the ever knowing forum is:
Do Glow Plugs deteriotate or just go on/off like a light bulb?
I have nothing to compare, exept to adhere to Ohms Law and not knowing
how
the gizissicmos are made, I am confused.
Looking at the "Glow Plug"" on my electric stove (heating element) it's a
no brainer.
Long skinny coiled wire imbedded in ceramic and clad with steel.
Of course, my stove top does not encounter vulcanic activities such as
extreme heat, shock and tremors. The GP does this 15 times/sec at idle.
What resistance does a new good GP have?
On Sun, Apr 1, 2012 at 9:15 PM, OK Don <okd...@gmail.com> wrote:
Either you are correct, and the glow plugs are indeed bad (I've one or
two
that read higher resistance than they should have been) or your meter
needs
calibrating. What does the meter read when you short the two probes
together?
On the other hand, if you don't need all new glow plugs now, you will at
some time in the future. Go ahead and get them, then decide whether to
replace all of them, or one at a time as they fail. You can also verify
your meter against a new plug (assuming the new plug is good).
On Sun, Apr 1, 2012 at 8:24 PM, Hans Neureiter <diese...@gmail.com>
wrote:
> I use a Fluke MM. Setting it on auto or scale, same results. 95 O =
0.095
> KO, and it reads 0.01 Ohm.
>
> On second thought, the measurement of resistance may not be so
> un-significant.
>
> I am pretty much aware of the laws of physics that rule our world,
> including Ohm’s law.
>
> Cast in “Stone” they are; Gravity, Kinetic, Dynamic, Static, Electric,
> etc., etc.
>
> A glow plug is a resistor, a electrical conductor with a designated
> resistance.
>
> Current flowing through a conductor excites molecules/atoms and causes
heat
> - it glows and eventually burns up if current is not limited.
>
> Not knowing the metallurgical/chemical composition of a glow plug
element,
> it stands to reason to assume that the electrical characteristics
> deteriorate, i.e. resistance increases. More resistance, less current,
less
> glowing. Ohms Law is irrefutable, nor is the fact that things
deteriorate
> with age and use.
>
> Ohm’s law is similar to the principals of Hydraulics: Pressure (V) -
Head
> (Ω)
> - Flow (A).
>
> Only difference is that Head is influenced by Newton’s law (Static +
> dynamic). Electricity is weightless and thus exempt from gravitational
> influences.
>
> I just can’t get past the fact that Ohm tells me the plugs dont even
> get
> warm.
>
> I am reading 95 Ohm instead of 0.9 Ohm. Kind of like 95 % dead.
>
> A Ohmmeter tells you just the same as an Ammeter knowing the Voltage.
>
> Makes sense of my experience. No pre glow fault indication, but the
motor
> was hard to start below 40 F.
>
> Well, #1 finally kicked the bucket and told me something is wrong.
>
> Just wondering if I am on the right track or way out in left field?
>
> --
> Hans Neureiter, Katy, TX
> '82 300SD
> '01 VW New Beetle 1.9L TDI
> _______________________________________
>
--
OK Don
2001 ML320
1992 300D 2.5T
1990 300D 2.5T
1997 Plymouth Grand Voyager
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--
Hans Neureiter, Katy, TX
'82 300SD
'01 VW New Beetle 1.9L TDI
--
Hans Neureiter, Katy, TX
'82 300SD
'01 VW New Beetle 1.9L TDI
_______________________________________
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
_______________________________________
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
