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vwsnoopy
Samba Member
Joined: February 07, 2008
Posts: 20
Location: South Carolina
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 Posted: Thu Jul 30, 2015 9:12 am Post subject: 6 volt to 12 volt but still look stockish on a 65 |
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I want to switch my 6 volt 1965 bus to 12 volt. I would like to upgrade to an alternator if I can get one that still looks reasonably close to a 6 volt generator.
I've read that there is a Porsche 12v Generator that bolts straight in. Is there a similar alternator? I would prefer to not change the stand. I'll probably stick with the generator if I had to switch.
The other roadblock is the wiper motor. WW sells the replacement motor but it will not fit a 65. I called them and they suggested a Porsche 911 rear wiper motor from a late 60's to early 70 but they did not have an exact year.
Once I get these two hurdles taken care of, I'm ready to go.
Any comments/help would be appreciated. |
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Erik G
Samba Member
Joined: October 16, 2002
Posts: 13282
Location: Tejas!
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| Posted: Thu Jul 30, 2015 9:31 am Post subject: |
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the Porsche 12v 912 90mm generator can be pricy. I have bought and sold them over the years, sometimes you can get a good deal
I don't know of any alternators that look like a generator - they are fundamentally very different, so they look different.
Any reason you want to go 12v?
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BarryL 
Samba Member
Joined: November 01, 2004
Posts: 14271
Location: Casa de Oro, California
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| Posted: Thu Jul 30, 2015 9:36 am Post subject: Re: 6 volt to 12 volt but still look stockish on a 65 |
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| vwsnoopy wrote: |
| I want to switch my 6 volt 1965 bus to 12 volt. ...I've read that there is a Porsche 12v Generator that bolts straight in. |
If your bus is original then your 6 volt generator is 105mm diameter which is the same as all the later 12 volt Bosch generators for up to '71. The 12 volt Porsche generator fits the earlier VW pedestal with the small diameter 6 volt generator.
If you do have a 105mm generator then you'll need the 12 volt pulley also to keep the belt lined up. |
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vwsnoopy
Samba Member
Joined: February 07, 2008
Posts: 20
Location: South Carolina
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| Posted: Thu Jul 30, 2015 2:52 pm Post subject: |
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The bus is all original, thus the reason to keep it stock looking.
I'm switching to increase rear visibility (brighter tail lights) at night, and brighter headlights.
Bus is also frying coils. I suspect the generator and if I'm changing it. I am converting
having the ability to get a jump is a big plus as well
I've wrestled with this for about 16 years with this bus .
Better windshield washers are another bonus, 6 volt wipers are almost worthless
So back on topic
The Porsche generator will work with my stand and I need 12 v pulley?
Are they all the same? |
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BarryL
Samba Member
Joined: November 01, 2004
Posts: 14271
Location: Casa de Oro, California
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| Posted: Thu Jul 30, 2015 6:56 pm Post subject: |
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| vwsnoopy wrote: |
So back on topic
The Porsche generator will work with my stand and I need 12 v pulley?
Are they all the same? |
The generator that Eric G posted about is the one that fits the smaller 90 mm diameter generator pedestal. Measure your generator body diameter in millimeters. Is the regulator on top of it? I think I told you wrong. Starting in '66 they put the larger 105mm diameter generator on in 6 volt.
I don't know which Porsche pulley you need.
If your generator is 105mm then the world is your oyster for 12 volt generators.
I'm running 6 volt stuff and it all works great. I got the H4 bulbs too. |
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vwsnoopy
Samba Member
Joined: February 07, 2008
Posts: 20
Location: South Carolina
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| Posted: Thu Jul 30, 2015 7:17 pm Post subject: |
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I'll
Measure tomorrow. Bus is pretty much bone stock except for the front emblem |
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Dana Champion
Samba Member
Joined: July 06, 2012
Posts: 633
Location: Ventura County, CA
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| Posted: Fri Jul 31, 2015 8:29 am Post subject: |
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I had a '65 Westfalia that I got back in '75. It was mostly bone stock except it had a later ss vw emblem on the front ('68-'72). Ok, I had air scoops, surf racks, rear bumper hadn't been put back on since swapping out the trans.
I converted it to 12v a few years after I got it. Memory is a litte fuzzy.
Stock 1500 engine, had to change the generator, stand, and pulley . Did not consider a Porsche gen. back then. I think I used a 12v solenoid on the 6v starter, otherwise you need a 12v flywheel, and grind the trans housing. Or did I use a six volt solenoid on a 12v starter. Seems like I had to grind the trans case. Sorry for the fuzzy memory. 12v electric choke. Changed the flasher relay. I never changed the wiper motor. It never rains in California.  The wipers worked better, as long as you used them for short periods. It was the 70's man!
Changed the bulbs. Overall it was pretty simple.
If your tail light housings are not shiny inside, I have a simple " fix " to make them brighter. Use metal flue tape inside. I have some pics. from when I did my '70.
Maybe you can find a 12v wiper motor from a '67.
My last splittie was a '63 15 window. I left it 6v... But I sold it!  |
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captcory
Samba Member
Joined: January 20, 2010
Posts: 101
Location: swfl
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BarryL
Samba Member
Joined: November 01, 2004
Posts: 14271
Location: Casa de Oro, California
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| Posted: Sat Aug 01, 2015 9:30 am Post subject: |
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| Rad. That is dyno! |
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vwsnoopy
Samba Member
Joined: February 07, 2008
Posts: 20
Location: South Carolina
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| Posted: Sat Aug 01, 2015 10:06 am Post subject: |
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Ok. Silly question. What part exactly do I need to measure? The half bowl that the generator sits in along the curve?
This is the one presently Installed
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Ojai63dbl
Samba Member
Joined: March 12, 2007
Posts: 452
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| Posted: Sat Aug 01, 2015 10:35 am Post subject: |
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the 12V alternator from Prill could be cool to use-- anyone try it yet or know cost?
alternative is http://www.thesamba.com/vw/classifieds/detail.php?id=1298636
12V in 6V genie - pricey but looks like quality work and no mods to engine or dealing with a worn out Porsche genie |
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BarryL
Samba Member
Joined: November 01, 2004
Posts: 14271
Location: Casa de Oro, California
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| Posted: Sat Aug 01, 2015 6:41 pm Post subject: |
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| Measure the diameter of that pictured generator can. Just hold the measure across left to right of where you photoed and sight down each side. It looks to be the 90mm small size like Porsche and that new fangled one. |
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roadkingdoc
Samba Member
Joined: May 16, 2009
Posts: 911
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| Posted: Sun Aug 02, 2015 4:32 am Post subject: |
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| i had my 6 volt generator converted to 12 volt by a shop near me. |
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Aussiebug
Samba Member
Joined: June 03, 2002
Posts: 2162
Location: Adelaide Australia
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| Posted: Sun Aug 02, 2015 7:03 am Post subject: |
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vwsnoopy,
Here's the solution to the 6v wipers.
http://vw-resource.com/wiper1.html
And if you leave the 109 tooth 6v flywheel on the engine, the 6v starter will last for years on 12v so long as you don't crank it for long periods. But you need to change the starter solenoid to a 12v unit (they are interchangeable) so it throws the starter cog out at a normal speed and does not wear out the flywheel teeth.
If you want to keep it 6v but need better lights, you can now get halogen 6v tail light and headlight bulbs. Same with LED versions too.
If you can't find them anywhere around you, try www.classicandvintagebulbs.com here in Australia. Just remind them you are in the USA so the low beam offset goes to the correct side of the road.
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Rob and Dave's aircooled VW pages
Repairs and maintenance for the home mechanic
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j.pickens
Samba Member
Joined: December 03, 2002
Posts: 9791
Location: Exit 7, New Jersey
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| Posted: Sun Aug 02, 2015 8:56 pm Post subject: |
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| roadkingdoc wrote: |
| i had my 6 volt generator converted to 12 volt by a shop near me. |
Same here. Took it to an alternator shop that knows Bosch. They had to totally replace the center armature, cost for just the parts was about $100. Cost me $180.
Got a backup industrial engine 90mm 12V generator for much less later.
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crofty
Judas of the North
Joined: August 09, 2000
Posts: 19672
Location: Land of Whine and Phonies
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| Posted: Mon Aug 03, 2015 7:43 am Post subject: |
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600 for a generator is crazy.
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| HamburgerBrad wrote: |
I slept on crofty's tent once. I passed out drunk from two bottles of Everett's brother's wine. |
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Aussiebug
Samba Member
Joined: June 03, 2002
Posts: 2162
Location: Adelaide Australia
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| Posted: Tue Aug 04, 2015 4:14 pm Post subject: |
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| j.pickens wrote: |
| roadkingdoc wrote: |
| i had my 6 volt generator converted to 12 volt by a shop near me. |
Same here. Took it to an alternator shop that knows Bosch. They had to totally replace the center armature, cost for just the parts was about $100. Cost me $180.
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Ouch. It's a shame you didn't find my $10 fix ( www.vw-resource.com/wiper1.html ) before you spent all that cash.
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Rob
Rob and Dave's aircooled VW pages
Repairs and maintenance for the home mechanic
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tasb
The Distributor Distributor
Joined: April 27, 2002
Posts: 6371
Location: Pentwater, Michigan
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| Posted: Tue Aug 04, 2015 8:49 pm Post subject: |
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M 620 was a popular option in 1965. It was a factory 12 volt system. I'm sure there are some threads on here that detail the changes and apearance.
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Last edited by tasb on Fri Aug 07, 2015 8:13 am; edited 1 time in total |
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crofty
Judas of the North
Joined: August 09, 2000
Posts: 19672
Location: Land of Whine and Phonies
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| Posted: Wed Aug 05, 2015 7:30 am Post subject: |
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| Aussiebug wrote: |
| j.pickens wrote: |
| roadkingdoc wrote: |
| i had my 6 volt generator converted to 12 volt by a shop near me. |
Same here. Took it to an alternator shop that knows Bosch. They had to totally replace the center armature, cost for just the parts was about $100. Cost me $180.
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Ouch. It's a shame you didn't find my $10 fix ( www.vw-resource.com/wiper1.html ) before you spent all that cash. |
Say what?
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Your Vanagon sucks, Stop waving at me.
| HamburgerBrad wrote: |
I slept on crofty's tent once. I passed out drunk from two bottles of Everett's brother's wine. |
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vwsnoopy
Samba Member
Joined: February 07, 2008
Posts: 20
Location: South Carolina
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