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Old 11-21-2007, 05:15 PM   #11
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Join Date: May 2007
Location: Michigan
Posts: 100
Re: I think my batteries are bad.

I talked with a mechanic today about my problem. He was surprised that I did not have a battery 'kill' switch. He says that buses are notoriuos for draining batteries when not in use. He advised me to continue with trying to find my problem by checking amp draw and go through all of my fuses. He also advised that I install a 'kill' switch as it would save me a lot of head aches.

How many of you have "kill' switches on your batteries?
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Old 11-21-2007, 07:47 PM   #12
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Location: Rossland BC, Canada
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Year: 1985
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Re: I think my batteries are bad.

I have one for my house system, but not for the ignition. Have you had your alternator checked? Just wondering as it may be a peice of the puzzle. 8D's are great, I have two. See if you can find some used ones, as they are very durable. Mine are out of a retired coach. They have been working great for going on 2 years and they sit for long periods in the cold without use. Now and then I switch my system over to keep a charge on them or to equalize em.

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Old 11-24-2007, 02:21 PM   #13
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Re: I think my batteries are bad.

Had to work on Thanksgiving day. We did the family thing all day Friday. I finally got to the bus today. I put the charged batteries back in and headed to town to see what the instruments could tell me. I chose NAPA because I have been to two other shops in town and was not very impressed. Well, We checked the batteries again and yep, they were doing fine. I asked what else they could tell me and they said they could put a load on it but it wasn't a good test to really see if the alternator was ok. The first time he thought that something was bad. HE checked again and then it showed normal. I restated that it would be a better test if I took the alternator out so they could put it on their machine. I decided that I would need to get my feet wet with fixing this problem some time. What better time than right in front of the store, then, there, and before they closed. I can say that working on the bus is much more fun than some of the cars I had. I really nice when you can step between the tire and bumper and get the alternator out right at chest level.

Well, I took my very clean alternator inside to see what their machine indicated. The smoking gun was found. Absolutely no voltage being produced. They quickly looked up a replacement, but none on hand. Tuesday was as soon as they could get one here. I asked how much would it cost. IT was $200. Ouch! But before I could make a decision, they were calling all of the other shops in town for a replacement. No luck at all. They did say there was a rebuild shop thirty miles or two towns away. I had already thought that I had pushed my luck as far as I should so I told them to go ahead and get me the new one for Tuesday.

Is $200 about the right cost for a like for like new replacement?
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Old 11-24-2007, 07:35 PM   #14
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Join Date: Jun 2006
Location: Edmond, OK
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Year: 1993
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Engine: 7.3 International diesel
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Re: I think my batteries are bad.

Originally Posted by Train-train
Is $200 about the right cost for a like for like new replacement?
Sounds like a good deal to me. I've heard of alternators costing more than that. I think Jason had to pay over $300 for an alternator he recently bought.
1993 International Carpenter 10 Window bus
7.3L diesel w/AT545
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