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keithpearson 
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Joined: 20 Apr 2014
Location: wis
Points: 107
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 Topic: Switching generator to alternator
Posted: 17 hours 43 minutes ago at 4:14pm |
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I'm in the process of switching my D17 series 4 over to an alternator. The alternator that I have is too big to fit inside the cowling. What alternator do you guys recommend to use to fit inside cowling without having to cut it up to get the alternator to fit
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WD45,160 6040,D14,D15,D17,D19,D21,and still looking for more
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 93120
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Posted: 16 hours 56 minutes ago at 5:01pm |
The old standard is the DELCO 10SI with internal regulator..
If you want one about 2/3 that size, you get the DENSO type, or "chevy mini".... prices range from $75. up to about $150. .. many of these are ONE WIRE, meaning there is no spade connector plug needed, just power cable to the battery ............ this is on ebay... everyone sells these.
Edited by steve(ill) - 14 hours 30 minutes ago at 7:27pm
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Like them all, but love the "B"s.
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
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Posted: 14 hours 34 minutes ago at 7:23pm |
25 years ago i started upgrading a few tractors with an alternator... At that time, DELCO 10SI was the standard... but was being replaced with the NEW CS130 which was smaller.. I have several of those in service... Thats another option..... these normally have a spade connector fittin on the side.. Two terminals are use, on gets 12v, the other gets a 12v SIGNAL to start the charge, similar to wiring up the older 10 SI. ------------ The Delco Remy CS130 is a compact, high-output internal-regulator alternator used heavily by General Motors from 1986 through the mid-1990s
Edited by steve(ill) - 14 hours 31 minutes ago at 7:26pm
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Like them all, but love the "B"s.
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DrAllis
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Joined: 12 Sep 2009
Points: 23491
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Posted: 12 hours 9 minutes ago at 9:48pm |
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Whenever I did a Delco on a D-17 tractor, I always left the fan off of the alternator to avoid cutting sheet metal. I always figured the radiator fan blast was adequate for alternator cooling and it apparently was, as I never had a failure and many of those conversions operated electric corn planter fans. If there was a lack of cooling I would have known about it decades ago.
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Straanger
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Joined: 10 Dec 2019
Location: Michigan
Points: 70
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Posted: 9 hours 25 minutes ago at 12:32am |
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There are also “alternator in a generator case “ options that have been used for years in the hot rodding community. I have no idea about how reliable they are since I haven’t followed that stuff for many years. But it’s another option to look into that would keep the original look, if you can find the right one.
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PaulB
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 5438
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Posted: 59 minutes ago at 8:58am |
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One thing to know is that alternators have a miniscule current draw when not running. For anything that get seldom used. It's best to remove the ground cable or have a master disconnect.
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 9201
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Posted: 44 minutes ago at 9:13am |
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Good point Paul. Over time they can drain your battery.
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 93120
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Posted: 38 minutes ago at 9:19am |
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a GOOD alternator will have no parasitic draw while setting... If you do have a draw, then one of you diodes is defective in the regulator.... Not real common, but yes, it does happen.
Edited by steve(ill) - 34 minutes ago at 9:23am
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Like them all, but love the "B"s.
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DrAllis
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Posted: 27 minutes ago at 9:30am |
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My experiences 30 years ago with the early versions of the 10SI Delco "one-wire" alternators left me pretty sour on parasitic draw. When you're trying to convert an old tractor over as quickly and easily as possible to 12V with alternator, you would naturally choose the one-wire alternator, only then to have trouble with the battery being dead every time the tractor sat for maybe a month not being used.
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