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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
Points: 10874 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Topic: 170 gasser ?
    Posted: 8 hours 26 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
No greater gift than healthy grandkids!
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
Points: 89286 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 6 hours 55 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 ?  
Like them all, but love the "B"s.
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Tracy Martin TN View Drop Down
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Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10874 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 6 hours 8 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
No greater gift than healthy grandkids!
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55allis View Drop Down
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Joined: 30 Jun 2020
Location: Griswold Iowa
Points: 1187 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 55allis Quote  Post ReplyReply Direct Link To This Post Posted: 5 hours 29 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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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 54727 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 1 hour 17 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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