motor swap

Basketcase · Posted: Wed Sep 07, 2011 2:25 pm Post subject: motor swap

our '72 Ghia developed a nock. so we're gonna swap a '74 motor. the Ghia motor has the generator and the '74 has an altornater. would it be better to keep the altornater that's with the '74 motor? what would be needed to do to change over to the altornater?
Thanks for the help!
Dave

Glenn · Posted: Wed Sep 07, 2011 2:30 pm Post subject:

Is the alternator a AL78 (external regulator) or a LA82 (internal regulator).

Either way you can't use the generator's regulator.
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Basketcase · Posted: Wed Sep 07, 2011 2:40 pm Post subject:

not sure on the regulater the swap motor s at my Uncle's place. how would we tell the difference?
Thanks!

Glenn · Posted: Wed Sep 07, 2011 2:41 pm Post subject:

A AL78 alternator has a plug with 3 wires and a bolt terminal. A AL82 has a single wire and a bolt terminal.
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Basketcase · Posted: Wed Sep 07, 2011 2:52 pm Post subject:

so would it be better to keep the generator or swap to the altornater and i assume the number of regulater wires means the hooup would be different?
thanks!

Glenn · Posted: Wed Sep 07, 2011 2:53 pm Post subject:

Generator is 30 amps and alternator is 55 amps.

Either will work.
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NOVA Airhead · Posted: Thu Sep 08, 2011 7:46 am Post subject:

I would go with the alternator as its already with the motor and its easy and cheap enough to address the voltage regulator issue.
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Ghiaddict · Posted: Thu Sep 08, 2011 8:03 am Post subject:

Another vote for the alternator here.

If you need to make a change to the wire harness,
it's an easy job for an internally regulated alternator.
That information is available @ many sites on the interweb.

If that '74 alternator is an original, it would've had it's own
external "solid state" regulator. That conversion to your '72
will be a little more involved.
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MinamiKotaro · Posted: Thu Sep 08, 2011 9:20 am Post subject:

Stick with the alternator. Upgrading to an alternator is a no-brainer.
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Basketcase · Posted: Thu Sep 08, 2011 11:41 am Post subject:

this is the first car i've had with a generater and all seems fine so why would the altornater be better? not going to have any big electrical users added on.
thanks for the info!

ovghiaguy · Posted: Thu Sep 08, 2011 2:12 pm Post subject: motor swap

Basketcase · Posted: Mon Oct 10, 2011 6:38 pm Post subject:

we got the motor swapped this weekend. gonna use tew altornater. lt has the 3 wire and bolt terminal which ls the externinal regulater l do belive. l found the wiring upgrade but lt is for the internial type. l can't find the one for my type on the search. help and thanks!
and do l just get any regulater for a '74?

Glenn · Posted: Mon Oct 10, 2011 6:40 pm Post subject:

You need a regulator for a 74 AL78 alternator.

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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"

Member #1009

#BlueSquare

Basketcase · Posted: Mon Oct 10, 2011 6:48 pm Post subject:

Thanks Glenn!


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