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Old 09-10-2015, 08:10 AM
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I remember my Auto Shop teacher forty years ago saying "checking amperage is a pain in the ass. If it seems quick and easy, then you're doing it wrong." We didn't have an inductive ammeter back then. Now it's pretty much a breeze. The only trick you have to remember is that if the wire that's feeding your load, like your fans for instance, has both the positive and negative wire in it, then you can't clamp around both of them at the same time. Other than that, it's pretty hard to do it wrong.
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Old 09-11-2015, 09:49 AM
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Originally Posted by patrickt View Post
I remember my Auto Shop teacher forty years ago saying "checking amperage is a pain in the ass. If it seems quick and easy, then you're doing it wrong." We didn't have an inductive ammeter back then. Now it's pretty much a breeze. The only trick you have to remember is that if the wire that's feeding your load, like your fans for instance, has both the positive and negative wire in it, then you can't clamp around both of them at the same time. Other than that, it's pretty hard to do it wrong.
Not fully understanding this about the pos and neg wired to it?
So what would be the correct way to measure the amperage going thru that CB?
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Old 09-11-2015, 09:55 AM
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Not fully understanding this about the pos and neg wired to it?
So what would be the correct way to measure the amperage going thru that CB?
Just clamp it around the 10 gauge brown wire coming off the top of the circuit breaker and it will tell you the amps that are running through it. Now, if you look at a typical SPAL electric fan, you will see that it has what looks like one fat black plastic wire running to the electric motor. Inside the black plastic wire are two separate wires, one red and one black. You can not just clamp your ammeter around the big plastic wire. You have to separate the two wires inside (red and black) and clamp your meter around one of them to get a correct reading. Not both at the same time.
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Old 09-12-2015, 11:25 AM
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Brown wire, got it!

Yes, I watched a few videos yesterday and the two wire thing makes perfect sense with the opposite magnetic fields canceling each other out.
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Old 09-12-2015, 11:31 AM
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Brown wire, got it!

Yes, I watched a few videos yesterday and the two wire thing makes perfect sense with the opposite magnetic fields canceling each other out.
Thanks
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Old 09-14-2015, 04:24 PM
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As in my other post, I have starter issues again. I think its from the wrong size starter bolt holes allowing the starter to slide ever so little. I will try shimming and have fixed the bolt hole part of the starter casing by building some copper bushings. If that does not work it will be back to Jegs to try again with a new starter and bushings in the starter casing.

Phil
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Old 09-14-2015, 04:48 PM
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As in my other post, I have starter issues again. I think its from the wrong size starter bolt holes allowing the starter to slide ever so little. I will try shimming and have fixed the bolt hole part of the starter casing by building some copper bushings. If that does not work it will be back to Jegs to try again with a new starter and bushings in the starter casing.

Phil
Phil, shoot Rick Lake a PM. He has more experience with tricky starter motor problems than anyone I know around here.
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Old 09-18-2015, 12:15 PM
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I did just that and sent pics as well. I suspect the starter was moving around as initially it worked fine. Over time it loosened and that created the problems. I will sleve the larger starter casing bolt holes and take up the slack, eliminating the possible movement. COuld not get a ring gear within 24 hours so I will stick a new flywheel on as well. Hopefully will put it all back together tomorrow.

phil
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