You can always pull them out and turn the key to see if they glow nice and bright.
brian from la verne, ca
From: Lawrence Rhodes <primobassoon@sbcglobal.net>
To: diesel_mercedes@yahoogroups.com
Sent: Sun, March 13, 2011 9:11:50 AM
Subject: [diesel_mercedes] Re: Glow plug function not restored
From: Lawrence Rhodes <primobassoon@sbcglobal.net>
To: diesel_mercedes@yahoogroups.com
Sent: Sun, March 13, 2011 9:11:50 AM
Subject: [diesel_mercedes] Re: Glow plug function not restored
I get black smoke if I keep the throttle pedal down when starting. A sure sign
of unburned fuel. I'm pretty sure the glow plugs are bad although they test
good. A test I didn't do was the voltage drop test at start up. The battery
should sag when the glow plugs engage. If I just crank and crank with no
throttle she will start to cough. It's then when I can give a little throttle
and she will start. Lawrence Rhodes....
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