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randy 
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Joined: 12 Sep 2009
Location: Illinois
Points: 1187
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 Topic: 8070 volt light
Posted: 08 Sep 2010 at 4:32pm |
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i put a new alt. and the volt light still comes on even at high idle, old alt checked out bad. is there a connection or a relay some where i need to check? new batteries and good cables. i bought this tractor with a bad engine and someone else took it apart and i rebuilt the motor, so i have no history about it. thanks randy
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CA WD WD45 D17 D17 Diesel 7060 8050 8070
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Brian Jasper co. Ia
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Joined: 11 Sep 2009
Location: Prairie City Ia
Points: 10508
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Posted: 08 Sep 2010 at 5:03pm |
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Where did you get the replacement alt? My experience in the past with places like O'Reilly and Auto Zone is you will go through 3 or 4 before you find a good one. I would have the replacement tested. Make sure that the main post on the back of it has battery voltage. If it is a Delco 10SI, there should be battery voltage at both terminals on the connector with the ign sw on.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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randy
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Joined: 12 Sep 2009
Location: Illinois
Points: 1187
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Posted: 09 Sep 2010 at 5:35am |
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new alt ,i saw it tested on the bench, and yes there is power to the one post on the alt. it is a one wire alt.
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CA WD WD45 D17 D17 Diesel 7060 8050 8070
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DrAllis
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Joined: 12 Sep 2009
Points: 20978
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Posted: 09 Sep 2010 at 6:32am |
Verify whether the alt is charging (or not) by placing an ammeter in-between the hot connection at the alt and the feed wire. It may be charging and your dashboard could be the problem by not turning off the light.
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randy
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Location: Illinois
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Posted: 09 Sep 2010 at 8:24pm |
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does the light panel on the dash control the volt light? will try the amp meter tomorrow, THANKS for help!!!!!!!!!!!!
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CA WD WD45 D17 D17 Diesel 7060 8050 8070
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Brian Jasper co. Ia
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Joined: 11 Sep 2009
Location: Prairie City Ia
Points: 10508
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Posted: 09 Sep 2010 at 9:41pm |
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Put a volt meter across the batteries. Should see 13.5 to 14V if it's working. I agree with the Doc.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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randy
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Joined: 12 Sep 2009
Location: Illinois
Points: 1187
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Posted: 19 Sep 2010 at 7:11am |
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finally fixed the alt, after 3 different regulators, this one is a self exciteing that starts at a lower speed and i believe it works off the stator. anyway a delco needs a special reg to work with this tractor. thanks for all the help, also sent old neihoff to be checked out, but new delco was still cheaper than a reg alone from neihoff.
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CA WD WD45 D17 D17 Diesel 7060 8050 8070
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