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10si Alternator Conversion in ‘63 Classic |
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ramblingcrosscountry
AMC Fan Joined: Jun/07/2022 Location: San Antonio Status: Offline Points: 26 |
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Posted: Jun/07/2022 at 12:52pm |
I am knee-deep in Roadtrip prep with my ‘63 Classic wagon, which originally had a generator. I am in the process of installing a 10si alternator. The unit is installed minus the wiring. Looking for some guidance on connecting the wires correctly. My plan is below:
-Completely disconnect all wires from voltage regulator and tape off -Replace orange wire with larger gauge, and connect it from the alternator primary terminal to the battery side of the starter solenoid. -Reconnect green wire to alternator secondary post and ensure it connects to Gen light -Connect New wire from alternator secondary post to a terminal block that is connected to the positive battery cable. |
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vinny
Supporter of TheAMCForum Joined: Jan/05/2012 Location: Calgary Status: Offline Points: 2837 |
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I had trouble using a 10si in my 64 classic. I tried two and with both the indicator light would flicker a bit at low idle. Very annoying. I used a cs130 from an 89 Pontiac Safari. Light is out by the time the car starts. You will need the connector with it but otherwise it is just as easy an install.
My car is Canadian built and 64 had an alternator so wiring will be different from yours. On the PLIS connector on the CS130 connect your indicator wire to (L)amp and the (S)ense to where you want to measure the voltage or easiest just put it to the alternator output. GM did it that way on many of their cars.
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bigbad69
Supporter of TheAMCForum Joined: Jul/02/2007 Location: Ottawa, Ont. Status: Offline Points: 6612 |
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Have a look at this thread. It covers replacing a Motorola alternator, rather than a generator, with a 10SI, but it does illustrate the usage of the 10SI.
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69 Javelin SST BBO 390 T10
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73hornut
AMC Addicted Joined: Jul/03/2007 Location: Southern Oregon Status: Offline Points: 3132 |
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I would use a cs130 or cs140.
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71 Javelin
74 Gremlin 79 Spirit AMX Rogue Valley Rumblers Like Us on FB https://www.facebook.com/groups/1602825606650796 |
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ramblingcrosscountry
AMC Fan Joined: Jun/07/2022 Location: San Antonio Status: Offline Points: 26 |
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Just a follow up to this thread. I ended up going the 12SI route.
Question: if I simply reconnect my 12SI alternator the existing wires (leave the voltage regulator installed), what issues will happen? I read that if I do this with the alternator trying to charge a dead battery, I’ll have a grilled classic on my hands. Let’s assume I’m smart enough to not do that.
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bigbad69
Supporter of TheAMCForum Joined: Jul/02/2007 Location: Ottawa, Ont. Status: Offline Points: 6612 |
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If your 12SI has an internal regulator, then keeping the external regulator will only cause you grief. A properly operating alternator won't catch fire, no matter how low the battery charge is.
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69 Javelin SST BBO 390 T10
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Mopar_guy
Supporter of TheAMCForum Joined: Jun/07/2009 Location: Ohio Status: Offline Points: 4805 |
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No but the wiring might if the alternator is putting out ±100 amps on old wiring that's not rated for it. It won't be the first one that caught fire because it wasn't done right the first time.
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"Hemilina" My 1973, 5.7 Hemi swapped Javelin |
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bigbad69
Supporter of TheAMCForum Joined: Jul/02/2007 Location: Ottawa, Ont. Status: Offline Points: 6612 |
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69 Javelin SST BBO 390 T10
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ramblingcrosscountry
AMC Fan Joined: Jun/07/2022 Location: San Antonio Status: Offline Points: 26 |
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So to y’all’s point about doing it right, that’s why I’m asking. I’m unable to attach pics to the forum, so I can’t show what I’m thinking so far.
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tomj
AMC Addicted Joined: Jan/27/2010 Location: earth Status: Offline Points: 7522 |
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You can run a discrete 10 or 8 gauge wire from alternator stud to battery plus (or starter stud that has battery cable on it), leaving the factory harness alone, and solve it. Least change and clean solution.
Crimp with a real crimper, not pliers or those cheap flat ones. If that's what you got (ratchet crimpers ste not cheap) then solder after crimping. |
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1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
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