Coil testing questions

[meltedpanda]

I am trying to ohm out a coil to see if it is good. According to the specs I should get 6kohms for the coil secondary , and .5kohms for the primary
on the coil
Ohm readings for the coil secondary should be 6 Kohms, which is what I get but the primary should be .5Kohms and I get , well zero, actually I get continuity, no reading . I think I am doing this correctly but would like some feedback.
I Should I get a 500 ohm reading on the 1k scale, correct???
both are listes as +/- 10%

I assume you can test a coil using a meter ( I have a good quality digital and a good analog )

thoughts?

[250 Coupe]

My understanding was that the primary was closer to 0 ohms than 500 so I wonder if the spec is correct.

A quick Google (test ignition coil ohm) later and I see a .7 to 1.7 ohm spec which sounds better to me.

If your meter can do relative measurements, zero out the leads when measuring the primary.

Michael

[chefrob15]

i have a 1979 280 e and have just recently noticed that my climate control switch don't work , the defrost works but heat and ac control switch don't work, i think it could be the panel failure but am not sure. any help would be highly appreciated.

[meltedpanda]

yes book value was wrong, its .5 ohms, and the coil is good. thanks all

and newbie, post your question as a new post under vintage forum, but defrost only mode is failure mode for that unit, however other items play into it. Do a search you will find a lot of inforamtion.
IS your buttons horizontal or vertical?

[mak]

Originally Posted by chefrob15

i have a 1979 280 e and have just recently noticed that my climate control switch don't work , the defrost works but heat and ac control switch don't work, i think it could be the panel failure but am not sure. any help would be highly appreciated.

[B]Welcome ! it may be a vacuum hose that is broken or come off .this turns the heater to the default defrost mode . check at the engine end connector
[/B]
mak