1951 split bug 6V -> 12V dynamo

[keithca91]

Hi,

I am currently restoring a 1951 beetle and would like to use a 12V dynamo without making any irreversible changes to the car or the engine, Any suggestions please?

An easier option would be to put in a 60s engine, But I would prefer to keep it's engine running in the car.

The Engine is 25hp and still has the 6v original dynamo.

[mackaymanx]

There are 12v generators (38A)from industrial engines around which use the 6v case. Not sure how well they fit a 25hp but they fit the 36hps. There are also 12v starters with the 6v pinion, also from industrial engines.
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[keithca91]

are these something I can buy as a reproduction part ?

I recently saw something for sale.

https://www.thesamba.com/vw/classifieds/detail.php?id=2498687

[esde]

You can run a 6v starter on 12v, the engine will spin faster and start easier. Put your original on a shelf for safe keeping and pick up a rebuilt 6v starter.
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modok wrote:
Bent cranks are silent but gather no moss. I mean, ah, something like that.

[keithca91]

Thanks a lot for the replies. do you think that the below dynamo will for a 25hp engine?

VW part number is: 113.903.031
Bosch part number: Bosch 0-101-206-116 14V/38A

[wimkever]

[Ovally]

Alternator kit?

http://www.repuestossam.com/en/electricity/e002.html

Regards.
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VW Bug Oval 1953
VW Bug 1200 D motor
Porsche 911S MFI 1970
Mazda 929 Hardtop 1977
Mercedes SLC 180 Roadster 2018

[56samba]

These generators (along with matching regulator!) are plug and play items to convert your 25/36 hp engine to 12 V. Of course you want to adjust your electrics to the increased voltage, so that changing bulbs, rewiring semaphores etc is mandatory.
Persoanlly, I run 12 v on my oval too but kept the 6 V starter and there aren't any issues yet. Rewiring the semaphores is not necessary if you use appropriate restistances...

Jan

[splitjunkie]

You need a 90mm Porsche 356 or early 912 generator. They are getting harder to find and quite expensive.

This is a pretty good thread on the topic.


https://www.thesamba.com/vw/forum/viewtopic.php?t=647409&start=0
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Chris

You know, a lot of these scratches will buff right out... Jerry Seinfeld

[pastellgreen]

Using a 6V starter with 12 Volt did ruin the teeth of my flywheel after one year, be aware of this possibility. My engine could not start any longer until I changed the flywheel.

[splitjunkie]

[petrol punk]

[pig-pen]