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Whats involved in a generator to alternator conversion??

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bajachris88 The international telephone dialing code for Antarctica is 6

6,661 posts · joined Apr 2005 ·

#746011
The generator is already 12V.

They have inbuilt regulators don't they?

use the same stand? Generator fan fits just the same...? same belt? differences? Same wiring?

Thanks fellas!
CHris 😀
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 👍
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta!

VWCOOL 23 Windows of Awesome

5,158 posts · joined Jun 2003 ·

#746042
some (usuall aftermarket, I think) have internal regs, some don't. Physical differences: you will need to change/replace the genny stand and - possibly - the fuel pump.

Good idea to double check the specs and condition of your fan while you are there, too
Pay your debts, CxxT

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#746066
it was the 74-some 75 ones that were ext regulated
75-76 and all aftermarket ones are internal now

with how cheap there getting its got me stuffed why people are still out there driving on generators
a nice original rarely driven stocker yea but a daily driver??

Bookwus Seriously Crusin Dubber

120 posts · joined Aug 2007 ·

#746277
Hiya Sean,

That is, by far and away, the single best illustrated write-up on generator/alternator conversion I have seen. Matter of fact, it just might be the best illustrated write-up (on any VW related subject) I have ever seen.

Awesome my friend!
Mike

1970 AS Bug
1970 Bus - The Ruptured Duck

Have an AutoStick? Check out www.auto-stick.com

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#746305
bajachris88 wrote:The generator is already 12V.

They have inbuilt regulators don't they?

use the same stand? Generator fan fits just the same...? same belt? differences? Same wiring?

Thanks fellas!
CHris 😀
A Generator stand is different to an alternator stand Chris...

an alternator fan belt is a different size . 11.3 x 912mm

You could grind a Generator stand to fit an alternator..
very easy if you had both sitting side by side...

If the alternator only has two connections...
[internal regulator]

a screw connection - main power to the battery..
and a push on connector which goes to the dash lamp...

cheers

LEE



PS: the alternator is earthed thru the stand and strap etc...
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

ctefeh Wolfsburg Wizard

479 posts · joined Apr 2005 ·

#746801
Mike,
No worries. Although I have to keep my slightly befuddled brain in gear to update that post with some additional info.

Lee,
Isn't the OG stand made out of mag alloy?? Bonfire time whipping out a grinder on to it if it is😂 .

Regards
Sean

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 ·

#746829
If you can find a good origional bosch alternator
it would be better than the cheap CHINESE versions available nowdays
I read it on FACEBOOK so it must be true


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