As I'm new to dealing with anything having to do with electricity (beyond turning light switches) can someone give me the correct OHM readings for pencil-type glow plugs on a 617 turbo engine?

Thanks.

Mccan

The manual says "less than 1 ohm at 20 degrees C (68 deg. F)."

__________________
Jeff Naumann
Torrance, California
1972 220D 138k miles (sold)
1982 300SD 263k miles
1989 BMW 750iL 183k miles
1993 Dodge D250 Cummins 5.9 202k Miles

Man, I am getting between 4.5 and 6. I'd better re-read the directions for this ohm meter.

I just measured mine yesterday. There are actually 2 measurements you want to take.

First, disconnect the plug on the relay and measure the resistance from the connector to each glow plug. The resistance should be less than .5 ohm. This confirms you have a good low resistance connection to the glow plug from the relay.

Next, measure the resistance from the tip of the glow plug to the block of the engine. This should read .75 to 1.5 ohms each.

Mine were:

2 @ 0.9 ohms
1 @ 250 ohms
1 @ 800 ohms
1 @ 17k ohm

I have three bad glow plugs.

__________________
Michael LaFleur

'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)

Thanks, gentlemen. I'll give it a whirl.