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Wayne S. Johnson
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Joined: April 12, 2006
Posts: 1265
Location: GILROY, CA
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si fly
Samba Member
Joined: April 28, 2009
Posts: 85
Location: Oregon
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 Posted: Sun Oct 11, 2009 7:43 pm Post subject: |
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I want to convert my 59 beetle to a 12v and was curios what the difference was between a 12 alternator and a 12v generator.
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1959 VW Beetle Sedan, DeLuxe
Second owner
| outoftheoffice wrote: |
| You can replace them when they start lookin like swiss cheese. |
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si fly
Samba Member
Joined: April 28, 2009
Posts: 85
Location: Oregon
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| Posted: Mon Oct 12, 2009 1:00 pm Post subject: |
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Is one better than the other?
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1959 VW Beetle Sedan, DeLuxe
Second owner
| outoftheoffice wrote: |
| You can replace them when they start lookin like swiss cheese. |
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onesweet63
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Joined: October 26, 2009
Posts: 46
Location: columbus ohio
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| Posted: Mon Oct 26, 2009 7:01 am Post subject: 12 volt to 6 volt question |
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| I have a 1963 bug that is a 6volt setup. i'm wanting to convert it to a 12volt. i know that i have to grind the bell housing to make the 12 volt flywheel to fit. just how much do i need to grind. a friend gave me a old engine block that has the crank and flywheel. will that work when im grinding. thanks |
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Wayne S. Johnson
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Joined: April 12, 2006
Posts: 1265
Location: GILROY, CA
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rustfree1967bug
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Joined: November 16, 2006
Posts: 3436
Location: minnesota
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| Posted: Wed Nov 11, 2009 8:13 pm Post subject: |
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I want to convert my '66 to 12 volt. Will I need to replace all my relays with 12 volt ones? Alsofor the wiper motor can I just put a '67 motor in my car or won't that work?
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'70 ghia
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'67 so-42
IDA's...well... they talk dirty -MURZI |
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cory43767
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Joined: February 13, 2007
Posts: 258
Location: Conesville, Ohio
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| Posted: Thu Nov 12, 2009 10:49 am Post subject: |
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Ok I read this thread and still don't see the answer. I just recently acquired a 1960 bug that is all original. I wantr to convert it over to 12V. What generator can I use to go on the old 36 horse generator bracket? Thanks!
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73' Standard Bug finished - sort of
60' Beetle - Moved to Pole Position in the garage! |
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bigbore
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Joined: December 19, 2003
Posts: 3297
Location: Wasilla Alaska
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| Posted: Thu Nov 12, 2009 11:15 am Post subject: |
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| cory43767 wrote: |
| Ok I read this thread and still don't see the answer. I just recently acquired a 1960 bug that is all original. I wantr to convert it over to 12V. What generator can I use to go on the old 36 horse generator bracket? Thanks! |
One off of a 356 porsche. Why do you want to convert?
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bigbore
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Joined: December 19, 2003
Posts: 3297
Location: Wasilla Alaska
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| Posted: Thu Nov 12, 2009 11:18 am Post subject: |
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As for the 6 volt starter I have never seen one go bad from running 12 volts to them. Thay are quite tough.
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cory43767
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Joined: February 13, 2007
Posts: 258
Location: Conesville, Ohio
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| Posted: Thu Nov 12, 2009 12:05 pm Post subject: |
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| bigbore wrote: |
| cory43767 wrote: |
| Ok I read this thread and still don't see the answer. I just recently acquired a 1960 bug that is all original. I wantr to convert it over to 12V. What generator can I use to go on the old 36 horse generator bracket? Thanks! |
One off of a 356 porsche. Why do you want to convert? |
I am fixing this car for my daugter and don't want some jackass teenager to jump the battery from a modern car and fry the system. Plus a little more reliable.
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73' Standard Bug finished - sort of
60' Beetle - Moved to Pole Position in the garage! |
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bigbore
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Joined: December 19, 2003
Posts: 3297
Location: Wasilla Alaska
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| Posted: Thu Nov 12, 2009 1:50 pm Post subject: |
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| cory43767 wrote: |
| bigbore wrote: |
| cory43767 wrote: |
| Ok I read this thread and still don't see the answer. I just recently acquired a 1960 bug that is all original. I wantr to convert it over to 12V. What generator can I use to go on the old 36 horse generator bracket? Thanks! |
One off of a 356 porsche. Why do you want to convert? |
I am fixing this car for my daugter and don't want some jackass teenager to jump the battery from a modern car and fry the system. Plus a little more reliable. |
Makes sence. I have never had a reliably problem with 6 volt and I have used them in 40- weather up here in Alaska but the teenage thing yep. find a gen from a 356. I have one but I haven't desided if Iam going convert my 58 most likely Iam not.
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GLHTurbo
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Joined: March 30, 2009
Posts: 1376
Location: New Jersey
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| Posted: Sun Nov 15, 2009 4:04 pm Post subject: |
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| What would be needed to run a 6V Fuel Sender and Gauge on a 12V system? |
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Wayne S. Johnson
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Joined: April 12, 2006
Posts: 1265
Location: GILROY, CA
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Insaniac
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Joined: February 13, 2009
Posts: 594
Location: Nor/So Cal
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| Posted: Sun Dec 06, 2009 10:58 pm Post subject: |
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| Can you use a 12v starter with a 6v flywheel? |
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bigbore
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Joined: December 19, 2003
Posts: 3297
Location: Wasilla Alaska
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| Posted: Mon Dec 07, 2009 10:42 am Post subject: |
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No but you can run a 6 volt starter on 12 volts. I have done it for years and haven't had a starter go out doing that.
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Insaniac
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Posts: 594
Location: Nor/So Cal
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| Posted: Tue Dec 08, 2009 2:06 am Post subject: |
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| Another quick questions, would there be any problems using a 12v transmission with a motor that was originally 6v, like a 40hp? |
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bigbore
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Joined: December 19, 2003
Posts: 3297
Location: Wasilla Alaska
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| Posted: Tue Dec 08, 2009 11:09 am Post subject: |
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No the trany will work fine but the gearing is diffrent. If you are going to run 6 volt starter you have to change the bushing in the trany for the starter. I think thay make a thinner bushing for that you see the 6 volt starter has a bigger shaft on the end then a 12 volt one. I do know thay make a bushing to make a 12 volt starter work on a 6 volt trany not sure about the othe way round. It seems to me I have seen those bushing but it has been years ago.
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Last edited by bigbore on Tue Dec 08, 2009 11:56 am; edited 1 time in total |
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gerg
a.k.a. 6volt65
Joined: April 25, 2003
Posts: 5454
Location: Monroe, LA
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| Posted: Tue Dec 08, 2009 11:53 am Post subject: |
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I am pretty sure they make either bushing - 6V into 12V and vice versa.
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. . . I got 99 problems and my bus ain't one . . .
'65 Sunroof Beetle
'65 Vert
'60 Singlecab |
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Hammarlund
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Joined: June 15, 2009
Posts: 1539
Location: Central Texas
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| Posted: Tue Dec 08, 2009 12:13 pm Post subject: |
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| No but you can run a 6 volt starter on 12 volts. I have done it for years and haven't had a starter go out doing that. |
This is true as long as the car is in the hands of a knowledgeable driver.
For Corey's sake I'm going to point out that the same ''jackass teenager'' who would jump start a six-volt car from twelve volts is likely to crank and crank and crank, rather than admit in front of your daughter that he doesn't know why the car won't start, until the starter overheats and the insulation between the windings starts to go. The reduced reactance and resistance cause the starter to draw more current which heats it up even more which causes even more insulation to melt...
I've never seen this with a Volkswagen starter, but I think that's because most people driving VWs are a little more knowledgeable about cars than average. But I've seen it happen lots of times with tractors and old trucks that have been converted to twelve volts because the owner lacked understanding enough to keep the six volt system reliable and went for what he thought was the easy fix.
To sum up: there is nothing wrong with using a six volt starter in a twelve volt conversion as long as one bears in mind that the starter must not be cranked more than a few seconds at a time. If the car is intended as a daily driver for the young and inexperienced one should at least consider installing a twelve volt starter.
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Wayne S. Johnson
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Joined: April 12, 2006
Posts: 1265
Location: GILROY, CA
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| Posted: Thu Dec 10, 2009 10:37 pm Post subject: |
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As you can see in the following post, damage to the flywheel is a real problem when using a 6 Volt starter in a 12 Volt system. Some 6 Volt starters may last longer than others in a 12 Volt system, but they will all eventually fail. Replacing a damage flywheel and a burned out starter will cost several times more than installing a 6/12 Hybrid starter.
Quote from the following post:
http://www.thesamba.com/vw/forum/viewtopic.php?t=107515&postdays=0&postorder=asc&start=0
| rusty57 wrote: |
Here is what i understand. This is the same situation i have with my wife's car. It is a 66. Originally 6 volt. At some point, a half assed 12 volt conversion was performed, much like the ones i've too done in the past. Change the battery, all bulbs, and maybe the generator/or to 12V alternator. Kits are relatively cheap, and pretty straight forward. I always put off the starter, and flywheel, because they are a pain, and leaving the 6 Volt crap in there, works just fine...for a while. The starter is now spinning up a lot faster with the 12 V battery. This causes the teeth on the 6 V flywheel to wear and even chip off. Look at this example of my current 6 volt flywheel. you may be able to see the damage.
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