Author Topic: Old 032 with no fire, Help  (Read 227 times)

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Offline labdad

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Old 032 with no fire, Help
« on: December 18, 2013, 03:16:17 pm »
I have an old 032 with points and no spark. I think the coil is bad and just want someone that knows what their doing to check me.  With an ohm meter I have 0 from the points wire to ground and from the plug wire I have 1 and this is with the wire to the on/off switch disconnected.  Just checking if this is the correct way to check the coil. Also if the coil is bad, which I think it is has anyone tried this service on Ebay. Thanks for your help.
http://www.ebay.com/itm/NO-SPARK-FIX-YOUR-STIHL-032AV-032-AV-IGNITION-COIL-PROBLEM-REPAIR-SERVICE-/251171664417?pt=US_Chainsaws&hash=item3a7aff7221
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Offline 660magnum

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Re: Old 032 with no fire, Help
« Reply #1 on: December 18, 2013, 03:31:36 pm »
The condenser is what is usually bad
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Offline labdad

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Re: Old 032 with no fire, Help
« Reply #2 on: December 18, 2013, 05:47:36 pm »
Is this the correct way to check the coil, it was checked at a dealer and was told the coil was bad.
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Offline Fish

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Re: Old 032 with no fire, Help
« Reply #3 on: December 18, 2013, 05:51:42 pm »
Just install a module from Oregon, or I have in the past recylcled Shindaiwa trimmer ignition modules with great success

Offline labdad

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Re: Old 032 with no fire, Help
« Reply #4 on: December 18, 2013, 06:34:03 pm »
The main thing I am trying to determine is if in fact the coil is bad, just wondering if that is the correct way to check it.
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Offline 660magnum

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Re: Old 032 with no fire, Help
« Reply #5 on: December 18, 2013, 08:53:14 pm »
Primary to ground should be 1 ohm

This can be the points wire or the spade connector on the coil as they are connected together

Secondary  9K ohm

This should be the spark plug wire to ground
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Offline labdad

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Re: Old 032 with no fire, Help
« Reply #6 on: December 18, 2013, 09:02:30 pm »
Primary to ground should be 1 ohm

This can be the points wire or the spade connector on the coil as they are connected together

Secondary  9K ohm

This should be the spark plug wire to ground
Thank you very much, that is what I was looking for. It seems that the coil is bad.  This is a buddies saw, he took it to two different dealers and they both told him they can't fix it and to buy a new saw. I told him he may be able to find a used coil or maybe the ebay deal where he rebuilds the old one. Thanks again for the help.
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Offline 660magnum

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Re: Old 032 with no fire, Help
« Reply #7 on: December 18, 2013, 09:13:01 pm »
There's been many threads written in chainsaw forums about the 031/032 points type ignitions and 9 times out of 10 it is the condenser or capacitor and not the coil.

Be sure you have your ohm meter set on the correct scale?

Resistance is a inverse measurement because it is a measure of "resistance"

The primary winding is the low voltage and will have heavier wire so it will have less resistance like .6 ohm or 1 ohm. This is the points to ground.

The secondary winding is the high voltage and is fine wire with more turns. It will have a high resistance like 8,000 to 10,000  ohms

The key factor here is that neither winding in the coil should have an open circuit.

It would be more likely for the secondary winding to be open circuit because it is smaller wire?
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Offline labdad

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Re: Old 032 with no fire, Help
« Reply #8 on: December 18, 2013, 10:02:12 pm »
Thanks for the info, I will recheck my findings. I want to thank you for explaining so I can understand. This way I know what I should be looking for instead of just looking at numbers on my multimeter.
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Offline 660magnum

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Re: Old 032 with no fire, Help
« Reply #9 on: December 18, 2013, 10:15:21 pm »
For others reading this that do not have a points type ignition, these figures and statements may not be correct? The reason being that the circuitry involved to eliminate the points will confuse the issue especially on the primary.

With a non points type coil, it almost gets down to either the coil works or it doesn't. This usually amounts to making sure the coil has a very good connection to ground, to remove the switch wire from the coil, and to examine the high voltage spark plug wire very carefully.

Also the newer coils are often RPM limiting types and this involves another secondary winding that is reverse wound as a bucking coil. At higher rpms, it will make enough energy to reduce the spark.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

 

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