1971 Merc Stator Test

[racoonbeast]

My question is more about ignorance in reading multimeters than anything else. Just got a used stator for my motor. The manual says that I should set the ohms meter to RX1000 and get a reading of 20 -50 from the way you are supposed to hook it up. They are talking about an analog multimeter. I only have a digital multimeter, and get a reading of 295 k ohms form the proper hookup. I am a stone rookie and don't really know what this is telling me. I know everything is hooked up the way it is supposed to, I just don't know how to translate the numbers. Am I ok? Or am I getting ten times the resistance I should be getting?

 

[mthieme]

Re: 1971 Merc Stator Test

http://forums.iboats.com/showthread.php?t=286807&highlight=mercury+stator+test

 

[Laddies]

Re: 1971 Merc Stator Test

For your 71 engine it shuuld test, stator wire to wire .35 to .45 on a OHM meter and open to ground

 

[racoonbeast]

Re: 1971 Merc Stator Test

Thanks for the answers, but, neither addresses what I am asking. It is a 1971 Merc 7.5 hp mod. 75. I have the stator out of it. The manual says that hooking the positive up to the salmon colored lead coming of the stator, and the negative up to the other lead should give me a reading of 20-50 at a RX1000 setting on an analog mutimeter. I only have a digital multimeter, and get a reading of 295 k ohms. I don't know how to read a digital multimeter, have lost the manual, and the only manual I can find to down load is in Spanish, which does not help me. My question is, is 295 k ohms on a digital multimeter the same as a reading is the range of 20 - 50 on an analog meter set at RX1000, or is it ten times as much? It is more of a reading a multimeter question, than how to do the test. I have that part down. Just don't know what the numbers are telling me. Thanks.

 

[mthieme]

Re: 1971 Merc Stator Test

Gotchya. Yes. My digital multimeter looks and operates very much like an analog meter, just reads out on an LED. It has a dial that you select ohm-volt-amps at different multipliers. This is a cheapy. Unless you've got a fancy high dollar Fluke, I would expect yours to be similar.
Here's an image of mine. Is yours similar?
http://www.harborfreight.com/cpi/photos/90800-90899/90899.gif
It sounds like your multimeter is reading 295,000 compared to your analog example of 20,000 to 50,000. In either case you have way too much impedance...as long as you have the meter hooked up right and at the set correctly which I've got through my thick skull that this is your problem (by the sound of it).
Do you have a brand and model # of the meter?

 

[Laddies]

Re: 1971 Merc Stator Test

It would have saved a lot of time had you said it was a 7.5 in your original post

 

[racoonbeast]

Re: 1971 Merc Stator Test

My multimeter is a Micronta from Radio Shack. Not real expensive. About seventy bucks ten years ago. You have confirmed my suspicions. I am a little rusty in my electronics, but, I kind of remembered that a reading of 20 ohms at the RX1000 setting on an analog meter is the same as 20 K ohms on a digital one. That was my fear. I am getting a 295 k ohm reading, which, if it means 295,000 ohms, I have a big problem with my part. Guess it is time to discuss a refund on this "tested and known to be good" part.

 

[racoonbeast]

Re: 1971 Merc Stator Test

Oh, and yes, my multimeter is essentially the same as yours.

 

[mthieme]

Re: 1971 Merc Stator Test

Yup.
A new stator for that puppy is dear.
If there are more used stators to be had when you return that one, take your multimeter so you can test it one the spot.