Alternator

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Terry Phillips
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Alternator

Post by Terry Phillips » Thu Mar 12, 2020 1:56 pm

I am still having night mares with this charging system, I am not sure this is the right alternator with a built in regulator
It says Alternator IC Regulator is that for a external regulator or built in regulator, The power wire from battery big one but then there is 3 wires coming out that go to a plug one has power is there suppose to be more with power once the key is on .I am lost with this with this charging light. if I put a test light on one of the other wires when the engine is running should there be power at one of the other two wires or all 3 wires coming out the alternator. Hope you can understand what I mean because I don't.Thanks :oops:



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retrovan
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Re: Alternator

Post by retrovan » Thu Mar 12, 2020 2:36 pm

Terry the 3 wire system normally goes to a voltage regulator on the body.

Image

Please Google the model name and number of your car to get the right wiring diagram.

Herman
1952 Split Beetle 1835cc (Azure Blue)
1968 Fastback 2Lt.type4( Red)
1972 Low Light Bay Panel Van 2Lt type 4(White)
1975 Fleetline Panel Van 1914cc (Aqua Blue/White)
2019 MeFusco Beetle Truck

Terry Phillips
Carburettor
Posts: 1956
Joined: Mon Jul 16, 2012 5:56 pm
What model do you have?: T3,1beetle
Location: Kempton Park
Has thanked: 182 times
Been thanked: 114 times
Flag: South Africa

Re: Alternator

Post by Terry Phillips » Thu Mar 12, 2020 4:25 pm

Thanks Herman so my alternator needs the external regulator it does not have a built in one.

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retrovan
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Re: Alternator

Post by retrovan » Thu Mar 12, 2020 5:22 pm

If you have two wires, one thick and one thin, you have an internal regulator,

it you have a thick and 3 thin you need an external regulator as per the pic above.

Herman
1952 Split Beetle 1835cc (Azure Blue)
1968 Fastback 2Lt.type4( Red)
1972 Low Light Bay Panel Van 2Lt type 4(White)
1975 Fleetline Panel Van 1914cc (Aqua Blue/White)
2019 MeFusco Beetle Truck

Terry Phillips
Carburettor
Posts: 1956
Joined: Mon Jul 16, 2012 5:56 pm
What model do you have?: T3,1beetle
Location: Kempton Park
Has thanked: 182 times
Been thanked: 114 times
Flag: South Africa

Re: Alternator

Post by Terry Phillips » Thu Mar 12, 2020 6:47 pm

Thanks Herman I will have to look into it as it was all working fine until it all went dead but got it all working except for the alt light not coming on.

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