Skip to content
Aussieveedubbers

Parts required for my 12v conversion?

0 likes
Share Share on Facebook Share on X Share on Reddit

AyeBee Seriously Crusin Dubber

155 posts · joined Jun 2010 ·

#874919
After reading a number of websites, forums etc looking for that definitive list of what I need to convert my 1964 1200 6 Volt Beetle to 12 volt, there seems to be a lot of varying thoughts.

Here's what I seem to be able to figure out I need for my bug (note: I intend on just using the 6volt starter, and have a 12v radio already to install in glovebox)

- 12v Alternator (with internal regulator)
- Alternator Stand
- Alternator strap
- Alternator backing plate
- New 12v style pulley for alternator
- 12v Coil and condensor
- 12v Horn
- Voltage reducer (or similar) for wipers, or 12v motor
- 12v Flasher canister
- 12v Bulbs (everything including headlights and dash)
- New fan belt
- 12v choke (although not sure where I'd find one for a 28 PICT-1)

Stuff I'm not sure about

- Fuel tank sender unit?
- Fuel Pump?
- New fuses?

Anyone care to help by adding stuff I may have missed or eliminating parts above I don't need before I go ahead and start collecting all these parts?

Cheers,

Andy

AyeBee Seriously Crusin Dubber

155 posts · joined Jun 2010 ·

#875068
?

donn Wolfsburg Elder

3,515 posts · joined Nov 2005 ·

#875138
Fuel pump's mechanical.Unless you have changed it. 🙅
I dream of a day when a chicken can cross a road without being asked for it's motive!

AyeBee Seriously Crusin Dubber

155 posts · joined Jun 2010 ·

#875155
I recall reading somewhere though I may need a different one due to clearance issues once I install an alternator stand instead of having just the generator? And every alternator/12 volt conversion kit I see on the internet (not that I'm buying one of those), seems to have one included. Which is why Im puzzled?

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#875156
May need a new fan hub.
Won't need a condenser They are not voltage sensitive
Yes to fuel pump, change to the alternator style and pushrod, esp on a 1200

Choke element and fuel gauge will burn out eventually, altho the fuel gauge can last a long time. Don't think the choke element is available in 12v but possibly could get it rewound.

And don't forget you'll need a 12V battery 😂
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

AyeBee Seriously Crusin Dubber

155 posts · joined Jun 2010 ·

#875161
Thanks Matt - found a place in the states last night (pacific customs) that sells a 12v choke element for the 28 PICT-1 , didnt actually think Id find one.

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#875163
Depends which fuel pump you have and what alternator you use.
Alot of the new generator style fuel pumps will work with alternators still.

Are you sure the carb is a 28pict-1?
Cos they use the 12volt size choke units, its the 28pict that use the smaller one.
I can vouch for that when I accidentally put a 6volt choke unit in my 71 superbug, they dont work on 6 volt for long without glowing in the dark and when we converted a friends 66 the 12volt choke fitted straight in

otherwise you could have a 28pict-1 carb bottom with a 28pict top.
Does it have the triangle choke diaphragm cover with 3 screws or the long cylinder type?

AyeBee Seriously Crusin Dubber

155 posts · joined Jun 2010 ·

#875174
Its the triangle one with 3 screws Joel.

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

11,654 posts · joined Aug 2002 ·

#875192
AyeBee wrote:I recall reading somewhere though I may need a different one due to clearance issues once I install an alternator stand instead of having just the generator? And every alternator/12 volt conversion kit I see on the internet (not that I'm buying one of those), seems to have one included. Which is why Im puzzled?
Beetles that had alternators originally , came with a Fuel pump with an OFFSET base...
so it doesn't touch the alternator..

I have seen alternators with a bit ground down so they don't touch the pump...
putting a piece of rubber in between them doesn't work... lol
😂

LEE
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

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

11,654 posts · joined Aug 2002 ·

#875195
AyeBee wrote:After reading a number of websites, forums etc looking for that definitive list of what I need to convert my 1964 1200 6 Volt Beetle to 12 volt, there seems to be a lot of varying thoughts.

Here's what I seem to be able to figure out I need for my bug (note: I intend on just using the 6volt starter, and have a 12v radio already to install in glovebox)

- 12v Alternator (with internal regulator)
- Alternator Stand
- Alternator strap
- Alternator backing plate
- New 12v style pulley for alternator
[should be on the alternator]

- 12v Coil [ condensor is OK]

- 12v Horn

- Voltage reducer (or similar) for wipers, or 12v motor
- 12v Flasher canister

- 12v Bulbs (everything including headlights and dash)

- New fan belt [ alternator belt - not generator belt]

- 12v choke (although not sure where I'd find one for a 28 PICT-1)

Stuff I'm not sure about

- Fuel tank sender unit?
- Fuel Pump? Maybe??
- New fuses? No they are OK..

Anyone care to help by adding stuff I may have missed or eliminating parts above I don't need before I go ahead and start collecting all these parts?

Cheers,

Andy
If Your engine starts first time every time..
Your starter motor will last for some time [usually]

cheers

LEE
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

AyeBee Seriously Crusin Dubber

155 posts · joined Jun 2010 ·

#875256
Joel wrote:Depends which fuel pump you have and what alternator you use.
Alot of the new generator style fuel pumps will work with alternators still.

Are you sure the carb is a 28pict-1?
Cos they use the 12volt size choke units, its the 28pict that use the smaller one.
I can vouch for that when I accidentally put a 6volt choke unit in my 71 superbug, they dont work on 6 volt for long without glowing in the dark and when we converted a friends 66 the 12volt choke fitted straight in

otherwise you could have a 28pict-1 carb bottom with a 28pict top.
Does it have the triangle choke diaphragm cover with 3 screws or the long cylinder type?
Here's an older pic of my 1200 -



Bottom half says 28 PICT-1.

So you saying that a 12v one should just fit straight in there?

Am looking at this one -

http://www.pacificcustoms.com/129191113G.html

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#875263
It would pay to measure the OD of your choke unit just to be sure but yes that carb should take the later 12 volt style like the one you linked.

All my VW engines and carbs are in storage at my oldies place but if someone on here cant measure a 12 volt one for you I'll be able to tomorrow arvo.

AyeBee Seriously Crusin Dubber

155 posts · joined Jun 2010 ·

#875275
If someone could measure one, that'd be great.

1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 ·

#875276
Hi

You will need to fit a spacer under the carb because the accelerator linkage will touch the alternator. The 6 volt horn may last for a while and make interesting noises

Steve

AyeBee Seriously Crusin Dubber

155 posts · joined Jun 2010 ·

#875312
Ah, thanks Steve!

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#875375
AyeBee wrote:If someone could measure one, that'd be great.
43mm is the OD where it sits in the carb of the later 12volt style.

AyeBee Seriously Crusin Dubber

155 posts · joined Jun 2010 ·

#875386
Awesome, much appreciated Joel.

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#875451
No worries.

Just for laughs here's how you don't fit a 12 volt unit to the earlier 28pict carbs 😂


donn Wolfsburg Elder

3,515 posts · joined Nov 2005 ·

#875477
Yep, I see the problem, rusty screws. 🤓
I dream of a day when a chicken can cross a road without being asked for it's motive!

AyeBee Seriously Crusin Dubber

155 posts · joined Jun 2010 ·

#875500
Yeah, that screw at the top doesn't seem very secure ;-)

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

11,654 posts · joined Aug 2002 ·

#875613
Joel wrote:No worries.

Just for laughs here's how you don't fit a 12 volt unit to the earlier 28pict carbs 😂

nicely back yard engineered... lol

I would never have thought of that... lol

LEE
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

AyeBee Seriously Crusin Dubber

155 posts · joined Jun 2010 ·

#875700
Thanks to all those that replied both here and in PM. Parts are now ordered - everything except all the bulbs!

Cheers.

Andy

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

11,654 posts · joined Aug 2002 ·

#875703
actually the two LH screws are jammed against the body of the choke and not screwed right in..

Bottom RH side is sitting on the edge of the body..

odd that the screws are rusted... must be in the USA or UK
where everything rusts... lol

LEE
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---