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 Post subject: dual field alternator
PostPosted: Mon Aug 06, 2018 5:39 pm 
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EFI Slant 6
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Joined: Sat Jul 26, 2003 8:09 pm
Posts: 343
Location: Connecticut
Car Model*: 62 Lancer GT
When I bought my Lancer it was completely disassembled. It came with a squareback alt. I did not know it at the the time but it has one of the FLD terminals grounded. instead of a regular brush it has a brush with an extra large spade that is grounded to the case. I was told that this is for use with the old style regulator. I also have a dual field alt. from my 72 motor that is in bad shape but has the regular isolated type brushes. I have the newer style voltage regulator installed in the car. My question is can I remove the grounded style brush and replace it with the isolated style brush and regular size spade and then wire both fields?

Hope this makes sense

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1966 Dart GT
4 spd. OD conversion
8 3/4 - 3.55 SG (Sold)

62 Lancer GT
B Body 8 3/4


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PostPosted: Tue Aug 07, 2018 4:09 am 
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TBI Slant 6
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Joined: Tue Aug 19, 2003 3:52 am
Posts: 162
Location: Helsinki Finland
Car Model*: 1966 2D Dart
If I understood you have no late type alternator with 2 wire terminals for field. And you like use it with old style "relay" or "solid state relay replacement" regulator. If so just connect the field wire to one terminal and make another wire which you connect from other field terminal to chassis (ground).

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LL21A6_/6 running with fuel made from biowaste (ethanol).


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PostPosted: Wed Aug 08, 2018 4:52 pm 
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EFI Slant 6
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Joined: Sat Jul 26, 2003 8:09 pm
Posts: 343
Location: Connecticut
Car Model*: 62 Lancer GT
I am using a newer voltage regulator. I have a dual field squareback alternator. One of the fields is grounded from the factory. My question is can I replace the grounded brush with an isolated brush and wire both fields?

_________________
1966 Dart GT
4 spd. OD conversion
8 3/4 - 3.55 SG (Sold)

62 Lancer GT
B Body 8 3/4


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PostPosted: Wed Aug 08, 2018 5:02 pm 
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Supercharged
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Joined: Thu Jan 27, 2005 8:32 pm
Posts: 7211
Location: SW Washington
Car Model*: 1954 Dodge C1-B8
JohnnyDees wrote:
I am using a newer voltage regulator. I have a dual field squareback alternator. One of the fields is grounded from the factory. My question is can I replace the grounded brush with an isolated brush and wire both fields?


Yes, exactly. After you sway the brush holder I would measure with an ohm meter to make sure neither field terminal is shorted to the case.

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Joshua


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PostPosted: Wed Aug 08, 2018 5:12 pm 
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EFI Slant 6
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Joined: Sat Jul 26, 2003 8:09 pm
Posts: 343
Location: Connecticut
Car Model*: 62 Lancer GT
Thanks for the reply. Your reply says "sway" the brush can you explain?

Thanks again John D

_________________
1966 Dart GT
4 spd. OD conversion
8 3/4 - 3.55 SG (Sold)

62 Lancer GT
B Body 8 3/4


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PostPosted: Thu Aug 09, 2018 7:03 am 
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Supercharged
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Joined: Thu Jan 27, 2005 8:32 pm
Posts: 7211
Location: SW Washington
Car Model*: 1954 Dodge C1-B8
Swap, not sway, sorry.

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Joshua


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PostPosted: Wed Aug 22, 2018 5:11 pm 
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EFI Slant 6
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Joined: Sat Jul 26, 2003 8:09 pm
Posts: 343
Location: Connecticut
Car Model*: 62 Lancer GT
Thanks it worked!!!

_________________
1966 Dart GT
4 spd. OD conversion
8 3/4 - 3.55 SG (Sold)

62 Lancer GT
B Body 8 3/4


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