I'll give it a try,
Thx
Larry
If your meter can reliably measure that resistance on a plug outside of the
engine then you've either got 5 bad plugs, a dead short in the wiring or you're
testing in the wrong place. Can you tape the lead from your meter to a stick to
test directly at the plug? If it still reads zero it's probably a bad plug. If
it's not zero your wiring has a dead short...
Curt
Sent from Yahoo Mail on Android
On Sun, Jan 1, 2017 at 3:30 PM, Larry Turner via Mercedes<[email protected]> wrote: I dunno, I'm pretty well confused as it is. You'll have to work pretty
hard to further confuse me,
OK, No, i cannot reach the individual G.Ps.. I am using Bosch and GPs.
3 and 2 IIRC. I have removed everything but the manifold - a socket
head bolt is stripped making it hard to unscrew. Have tried using a
chisel and punch but it's not moving yet.
It sounds like my testing of resistance was a wasted effort. If unable
to remove the GPs, I doubt I can test them properly. My test gauges
are Fluke and a Innova. I tested the ones I removed and found settings
of 0.200 or so. But I really ought to test then again to refresh my
memory (or write the values down).
I'm sure I'll have more questions so you can further confuse me, ;-)
Thanks for helping....
Larry
91 300D
On 01/01/2017 12:34 PM, Fred Moir via Mercedes wrote:
Larry.
Are you measuring the wiring to each GP from the socket pins? If so then the
wiring is good.
If all 5 GP's are 0.0 ohms from the socket pin to ground then they have a very
low resistance to ground. This could be because of the limitations of your
meter or they are all shorted to ground, either internally or externally.
The cold resistance of GP's is very low and inexpensive meters may not be able
to discriminate between 0.0 ohms and 0.8 ohms (or there abouts).
Have you tested your meter on a loose GP to find out what the indicated resting
resistance is? This will give you a benchmark to measure the plugs installed in
your engine.
Q. What brand of glow plugs are currently installed?
If they are not Bosch or Beru they will have a short life. (no pun intended).
If you need to ask more questions I can confuse you to a much greater degree.
Fred Moir.
Lynn MA.
Diesel preferred.
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