Luther Gulseth wrote:
Checked the glow plugs on my CD and mom/dad's '85 300D tonight. D
readings were open, 2.6, 2.6, 2.6, 2.6. Ordering a set for that car for
sure. Mine were 3.3, 3.3, 3.3, 5.0, 4.9. Do glow plugs gradually
increase in resistance as they age? Or do they stay the same, then
suddenly short/open out? This is the question I need to have answered.
The resistance of the good plugs should be identical (+/- 10%) IF the
plugs are at the same temperature. If one engine has not been run in 6+
hours and the other car's engine has been recently shut off, the plugs
in the engine that's recently been shut down will read somewhat higher
(maybe 20-30%).
What the heck units of measure are you using? Good plugs should read 0.6
OHMS cold!!
Marshall
--
Marshall Booth (who doesn't respond to unsigned questions)
"der Dieseling Doktor" [EMAIL PROTECTED]
'87 300TD 181Kmi,'87 190D 2.5 199Kmi, '84 190D 2.2 227Kmi, '85 190D 2.0
159Kmi, '87 190D 2.5 turbo 234kmi
