[Vwdiesel] Re: Miser's monitoring method for Glow plugs (WithWraparound!!!)

[James Hansen]

One other way to have a working/not working indicator would be an extension
of the current vw tdi method of comparing the current flow of two plugs with
the other two plugs.- Would need to have two plugs isolated from the other
two plugs.  Diodes should do nicely.   A wire from each circuit of two plugs
with a bulb in the middle should have the bulb light when one plug goes dead
b/c of voltage drop as compared to the other set of two plugs.
-James

-----Original Message-----
From: vwdiesel-bounces+jhsg=sasktel.net at vwfans.com
[mailto:vwdiesel-bounces+jhsg=sasktel.net at vwfans.com]On Behalf Of Mark
Shepherd
Sent: Tuesday, December 21, 2004 2:18 PM
To: vwdiesel at vwfans.com
Subject: [Vwdiesel] Re: Miser's monitoring method for Glow plugs
(WithWraparound!!!)



----- Original Message -----
From: Mark Shepherd
To: vwdiesel at vwfans.com
Sent: Tuesday, December 21, 2004 8:15 PM
Subject: Miser's monitoring method for Glow plugs


I know how some read my postings with disbelief; or make me
feel like the invisible man some times... ;o)
 BUT here's my take on glow plug monitoring.
Ok you want 4 LEDs on a switch blank?  Then change bus bar
for previously discussed individual wires; but go back to a
common point (not #4 plug) because each plug needs a wire.
 Bare insulation near each glowplug and solder flying leads
(these will go back to the LEDs) the other 'feed' to the
LEDs can all come from the common junction.
 As Hagar pointed out there will be a mVolt drop across the
fuse and likewise across the length of glowplug supply. Dont
use ballasted LEDs.
Glowplug failure will extuinguish LED
Is it +ve  to LED anode for conducting? I dunno someone else
can explain... 8oP

Miser

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