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Sun May 11, 2014 8:48 am

Hey guys I need some life advise. I have 1972 super beetle that's my daily driver for the past couple years. It's got an AB076686 engine number thought it was a 1600 but I dought it's the original. It has a brand new double advance distributor and a solex 30pic-2 carb. My question is this.... What was the original carb for this engine? I have an intake leak around my throttle shafts I think. The car goes fine down the highway but hunts at idle and stalls out. I had a broken spring in my advance in my old 009 advance so I changed over to double advance distributor (always had a hesitation at a light). Drove fine for a week then the hesitation came back worse. The car always was touchy to tune up. Any thoughts? I'd like to buy a whole new carb but am unsure as to what would work well

Sun May 11, 2014 9:05 am

The correct carb is the 34 Pict 3 Solex. Is your motor single port heads or dual port? That carb is for a single port - you either have single port or you have an adapter under the carb so it can bolt to the dual port manifold. Post your distributor number - this is important since not every dist/carb combo will work together. Even better is a picture of the engine - closeups are better yet.

Sun May 11, 2014 10:12 am

Is the 30 pict 2 meant for an SP engine?

I have a 72 standard with an AB1300 and a 30 pict 2 not sure on dizzy no but it has a vacuum think it might be an SVDA is this a bad set up?

Sun May 11, 2014 11:35 am

There are a lot of DP engines with a SP carb set up. A lot of people run the solex 30/31 with an adapter on their DP engines and with the right distributor, they run just fine. The 1972 DP engine originally had a Solex 34-3 with an SVDA distributor.

Engine with a SP carburetor (30/31)

My '73 engine with correct SVDA distributor and correct 34-3

Sun May 11, 2014 11:46 am

Abowman89 wrote: Hey guys I need some life advise. I have 1972 super beetle that's my daily driver for the past couple years. It's got an AB076686 engine number thought it was a 1600 but I dought it's the original. It has a brand new double advance distributor and a solex 30pic-2 carb. My question is this.... What was the original carb for this engine? I have an intake leak around my throttle shafts I think. The car goes fine down the highway but hunts at idle and stalls out. I had a broken spring in my advance in my old 009 advance so I changed over to double advance distributor (always had a hesitation at a light). Drove fine for a week then the hesitation came back worse. The car always was touchy to tune up. Any thoughts? I'd like to buy a whole new carb but am unsure as to what would work well

An AB motor is originally a 1300cc dual port motor.

For your motor you would originally have had a 31 PICT-3 carb and probably distrib type 113905205AJ. You'd have to pull off a head to see if the pistons/cylinders were changed maybe to a 1600. The 31-PICT-3 has a smaller flange than a 34 PICT-3 and that means that the intake manifold is different for both, but there are adapters so there are possibilities.

Sun May 11, 2014 12:28 pm

I've installed a few 30 pict 1 carbs on DP motors with an adapter in years past. With a 009 dist it works pretty good but does kill the top end some. But they did run better than the 34 Pict 3 with 009.

Sun May 11, 2014 12:43 pm

Folks, The AB motor is non-USA 1300DP not a 1600, so it never originally had a 34 PICT carb, but a 31 PICT-3 and later a 31 PICT-4.

Sun May 11, 2014 12:44 pm

It's a UFA auto products OE replacement double advance distributor. It was suppost to fit 034 and 009 aplications. I bought it on eBay. My carb does not have an adaptor plate under it the studs have the correct spacing

Sun May 11, 2014 12:46 pm

CharcoalFlunky wrote: Is the 30 pict 2 meant for an SP engine?

Yes.

CharcoalFlunky wrote: I have a 72 standard with an AB1300 and a 30 pict 2 not sure on dizzy no

It'll be on the body of it.

CharcoalFlunky wrote: but it has a vacuum think it might be an SVDA is this a bad set up?

If it has one 'nipple' or tube to the vacuum can it is a SVDA or SVA. 2 'nipples' and it's a DVDA.

Your motor will run better with the right carb/dizzy combo. They go hand-in-hand.

What's your motor number? AB and the first 4 digits will do. You had a 31 PICT-3 or -4 depending on engine number. 31 PICT-3 for engine numbers AB000001-AB350000, 31 PICT-4 in 1973 - edited.

Horse up a pic of the engine bay.

Sun May 11, 2014 1:17 pm

Volks Wagen wrote: CharcoalFlunky wrote: Is the 30 pict 2 meant for an SP engine?

Yes.

CharcoalFlunky wrote: I have a 72 standard with an AB1300 and a 30 pict 2 not sure on dizzy no

It'll be on the body of it.

CharcoalFlunky wrote: but it has a vacuum think it might be an SVDA is this a bad set up?

If it has one 'nipple' or tube to the vacuum can it is a SVDA or SVA. 2 'nipples' and it's a DVDA.

Your motor will run better with the right carb/dizzy combo. They go hand-in-hand.

What's your motor number? AB and the first 4 digits will do. You had a 31 PICT-3 or -4 depending on engine number. 31 PICT-3 for engine numbers AB000001-AB350000, 31 PICT-4 for the rest.

Horse up a pic of the engine bay.

Engine code is AB 422697

Is that a good potential case for a bigger rebuild btw?

Can't see the dizy code with it attached but here's a pic of the dizzy and the engine bay... It has a vacuum pump and advances it's self when timing with the vacuum line plugged.

What would you recommend carb wise? Was tempted to rebuild this carb but if there's a better combo will try and grab one of those instead.

Thanks

Sun May 11, 2014 3:01 pm

Volks Wagen wrote:

An AB motor is originally a 1300cc dual port motor.

For your motor you would originally have had a 31 PICT-3 carb and probably distrib type 113905205AJ. You'd have to pull off a head to see if the pistons/cylinders were changed maybe to a 1600. The 31-PICT-3 has a smaller flange than a 34 PICT-3 and that means that the intake manifold is different for both, but there are adapters so there are possibilities.

Can confirm that. I have a 1302, very original 1972 model. It came with 31 PICT-3. The 1600CC engines (the 1302S) came with 34 PICT-3.

Main jets are the same (130), and the carb is basically the same. Difference being the flange size.

You can use a smaller carb on 1600CC, but the optimal solution is to go for the original setup.

(If the VW engineers really believed that a 31 or 30 PICT carb would work well on a 1600 engine they probably would use that).

Sun May 11, 2014 3:30 pm

CharcoalFlunky wrote:
Engine code is AB 422697
Is that a good potential case for a bigger rebuild btw?

Can't see the dizy code with it attached but here's a pic of the dizzy and the engine bay... It has a vacuum pump and advances it's self when timing with the vacuum line plugged.

What would you recommend carb wise? Was tempted to rebuild this carb but if there's a better combo will try and grab one of those instead.

Thanks

That'd be 31 PICT-3 carb then originally. [I made a mistake earlier - 31 PICT-4 was introduced towards the end of 1300DP production in 1973 - will edit the post.] Could be an AS41 case which is fine to build out. So if you found a 31 PICT-3 then you need to find a matching distributor. The 31 PICT-3 carb has a number of 'versions' which are stamped on the flange at the base, and that info helps to ID the correct distributor.

Find out what the distributor you have is first. You might be fine with what you have or with a few tweaks. If you change you should match carb and distrib.

Sun May 11, 2014 3:44 pm

So what I'm understanding is a 31 pict 3 should work ok? I do not have an adaptor plate so it's still most likely single port. Does anyone have a recommendation as to what I should get? I'm on a tight budget....

Mon May 12, 2014 2:57 am

Volks Wagen wrote: CharcoalFlunky wrote:
Engine code is AB 422697
Is that a good potential case for a bigger rebuild btw?

Can't see the dizy code with it attached but here's a pic of the dizzy and the engine bay... It has a vacuum pump and advances it's self when timing with the vacuum line plugged.

What would you recommend carb wise? Was tempted to rebuild this carb but if there's a better combo will try and grab one of those instead.

Thanks

That'd be 31 PICT-3 carb then originally. [I made a mistake earlier - 31 PICT-4 was introduced towards the end of 1300DP production in 1973 - will edit the post.] Could be an AS41 case which is fine to build out. So if you found a 31 PICT-3 then you need to find a matching distributor. The 31 PICT-3 carb has a number of 'versions' which are stamped on the flange at the base, and that info helps to ID the correct distributor.

Find out what the distributor you have is first. You might be fine with what you have or with a few tweaks. If you change you should match carb and distrib.

So did some digging today.

Dizzy no is 113905205AL Bosch no 0231146101
From what I gather this is an SVDA (?034) type fitted to auto sticks/service replacement (source http://www.oldvolkshome.com/ovhignbo.htm) is that about right?

I've tried searching for a list of carb/dizzy matches but can't find any so my questions are this
Is this a good match for my current 30 pict 2 (which I know isn't a great but if matching pair will rebuild this carb and get it working to its best)
Or would a 31 pict 3 be a better match?

If it's a match for neither would something like this be a good match? http://www.simonbbc.com/distributors/4cyl-standard...-vw-beetle

Thanks in advance

Mon May 12, 2014 3:17 am

Abowman89 wrote: I do not have an adaptor plate so it's still most likely single port.

Your engine is dual port.

That manifold was unique to 1300 dual port engines as it had the smaller flange for the 31mm carb instead of the bigger 34mm one that 1600 dp had.

Mon May 12, 2014 12:27 pm

CharcoalFlunky wrote: Volks Wagen wrote: CharcoalFlunky wrote:
Engine code is AB 422697
Is that a good potential case for a bigger rebuild btw?

Can't see the dizy code with it attached but here's a pic of the dizzy and the engine bay... It has a vacuum pump and advances it's self when timing with the vacuum line plugged.

What would you recommend carb wise? Was tempted to rebuild this carb but if there's a better combo will try and grab one of those instead.

Thanks

That'd be 31 PICT-3 carb then originally. [I made a mistake earlier - 31 PICT-4 was introduced towards the end of 1300DP production in 1973 - will edit the post.] Could be an AS41 case which is fine to build out. So if you found a 31 PICT-3 then you need to find a matching distributor. The 31 PICT-3 carb has a number of 'versions' which are stamped on the flange at the base, and that info helps to ID the correct distributor.

Find out what the distributor you have is first. You might be fine with what you have or with a few tweaks. If you change you should match carb and distrib.

So did some digging today.

Dizzy no is 113905205AL Bosch no 0231146101
From what I gather this is an SVDA (?034) type fitted to auto sticks/service replacement (source http://www.oldvolkshome.com/ovhignbo.htm) is that about right?

I've tried searching for a list of carb/dizzy matches but can't find any so my questions are this
Is this a good match for my current 30 pict 2 (which I know isn't a great but if matching pair will rebuild this carb and get it working to its best)
Or would a 31 pict 3 be a better match?

If it's a match for neither would something like this be a good match? http://www.simonbbc.com/distributors/4cyl-standard...-vw-beetle

Thanks in advance

Distributor 113905205AL Bosch no 0231146101 was used on bug, bus, ghia and 181 circa 1971.

It was used with some 31 PICT-3 on 1300DP (Non-USA) and some 34 PICT-3 on 1600. It is likely the original type distributor for your 1300 AB motor, and would have been run on an AB bug motor with a 31PICT-3 with one of the version numbers VW 364-1, VW 364-2, VW 360-1, VW 360-2 stamped onto the bottom flange. The version numbers often indicate variations in jetting.

Tue May 13, 2014 1:31 pm

I found a 31 pick-3 carburetor. Does it have the same mounting flange as a solex 30 pick-2?

Wed May 14, 2014 1:36 pm

Abowman89 wrote: I found a 31 pick-3 carburetor. Does it have the same mounting flange as a solex 30 pick-2?

That should fit. Remember that the carb and the distributor are 'linked'. The carb supplies the correct vacuum signal to the distributor, so that the timing advances appropriately under various engine load conditions. The carb gives the right fuel/air mix to the cylinders and tells the dizzy what additional timing advance/delay in crankshaft rotational degrees to add to the mechanical ignition timing. Find the number on the carb flange and check this chart (courtesy of Glutamodo) to find the matching distributor.