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170 gasser ?

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Tracy Martin TN View Drop Down
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Joined: 11 Sep 2009
Location: Gallatin,TN
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Topic: 170 gasser ?
    Posted: 15 hours 15 minutes ago at 9:17pm
My 170 gas has puzzled me. Repaired replaced alternator. Repaired voltage regulator harness. Replaced voltage regulator. Worked great. No problems. A couple months later, will not click or try to turn engine over. Would not jump across post to energize solenoid. What could cause the drain on battery? Could new regulator be stuck and drain it? Thanks, Tracy
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steve(ill) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 13 hours 44 minutes ago at 10:48pm
your going to have to run a few tests.. Battery could be bad.. alternator could have internal short... voltage regulator could have contact STUCK and being grounded... and then any of the wires between them could have a problem...

I would start with a fully charged battery.. disconnect the + cable and let tractor set for a couple days.. reconnect and see if battery went dead on its own, or has full charge... Get a  amp meter in the line and see what is being drawn out of battery when setting with the key off....... if battery is good, start looking at the alternator / regulator / or even the starter motor... Is any of them feel WARM to the touch ?  
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Tracy Martin TN View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 12 hours 57 minutes ago at 11:35pm
Steve, battery is almost new. Alternator checked good. I put a new regulator on it, but I wouldn't swear it is good. Ain't like the old Neihoffs . My meter was dead today, low battery. I will charge up the battery and test from there. Thanks, Tracy
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55allis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 12 hours 18 minutes ago at 12:14am
Pull one of the battery cables off in the dark and slightly touch it to the post you pulled. If there’s an any slight spark there’s a draw. You can tell by the size of spark how bad it’s drawing.
Newer vehicles have a draw all the time (that’s why they don’t sit as long with a charge).
I don’t think alternators are supposed to have a draw…
I will start pulling wires and check for spark until the spark goes away and chances are that circuit is possibly the problem.
1955 AC WD45 diesel with D262 repower, 1949 AC WD, 1963 A-C D17 series 3

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DiyDave View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 8 hours 6 minutes ago at 4:26am
Never pull wires off of a running engine (alternator equipped).  It's a good way to blow the diodes...  
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Gary Burnett View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary Burnett Quote  Post ReplyReply Direct Link To This Post Posted: 5 hours 1 minutes ago at 7:31am
I had about the same issue with my Oliver 1550 gas,regulator was the problem as they are pretty much junk these days.A 1 wire alternator from DB Electrical fixed the problem.
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DrAllis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 4 hours 49 minutes ago at 7:43am
There are "modern" regulators for those old Delcotron alternators, that don't have breaker points inside to stick and run the battery down. They look the same but are electronic on the inside.  A nice upgrade and it still looks original. I'm pretty sure if the regulator points stick when shutting the engine OFF, if you notice (which none of us do), the ammeter will show a slight discharge, and not return to true zero.
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55allis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 3 hours 20 minutes ago at 9:12am
Originally posted by DiyDave DiyDave wrote:

Never pull wires off of a running engine (alternator equipped).  It's a good way to blow the diodes...  


Only do that with the engine shut down.
1955 AC WD45 diesel with D262 repower, 1949 AC WD, 1963 A-C D17 series 3

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RedHeeler79 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RedHeeler79 Quote  Post ReplyReply Direct Link To This Post Posted: 3 hours 1 minutes ago at 9:31am
An easier method than looking for a spark when touching battery cable to post…. Disconnect the ground cable, and hook a test light between the ground cable end and the negative battery terminal (assuming negative ground). If there’s a draw, the test light will illuminate, and the brightness will give you an idea of how strong the draw is. You can leave it hooked up this way and disconnect components or pull fuses one at a time until the test light goes out. Easy way to find a draw without a multi-meter.
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