Rob wrote ? Carburetor Sizing. The ideal fuel/air mixture is called Stoichiometry. Photo #10 reveals the continuance of drilling into the top half of the Carburetor which matches that of the drilling in the bottom half of the Carburetor. Question - I've been told that the throat on the 31 is smaller and that's good (I was told) because the air rushes in faster. Standard Version. The first dual port 1600s came in 1971, and have a double letter in front of the engine number, AF or AD for that year. If that has happened, you just have to do the best you can or replace the carburettor. Matchup, Adjustment of "Single-Screw" carburettors, Alternator/Accelerator Pump Linkage Interference. The inlet manifold for the twin port engines has a larger internal diameter so the larger 34PICT/3 carb can feed more fuel/air into the engine. on the top of the carburettor bowl. 34 Pict 3. 34 PICT/3 Carburettor Overhaul, Related Topics The /3 designation means the carburettor has three fuel circuits inside, and two adjusting screws on the left side. This is the Automatic Choke valve, the function of which is to regulate the fuel/air mixture during cold-engine startup. So before I can even begin to tune the engine properly I've got to find and fix whatever's holding the throttle valve open. Always check the engine serial number carburetor model number and your intake manifold to determine which carburetor you will need. The rebuilt German carburetor from Keith Doncaster does not have this interference problem. Accelerator Cable This nut is removed to provide access to the Main Jet which sits horizontally in the bottom of the float bowl. A 113-905-205T from a 71 or newer Beetle should work with a 30 PICT-3 Carb. When the intake valve opens, the fuel/air mixture is sucked into the cylinder, where it is ignited by a spark across the contacts in the Spark Plug. The H30/31 Brosol carburettor can run the 1600cc engine OK, but it MUST be jetted correctly. For example, the 30PICT/2 (1968-69) has only one adjusting screw, where the 30PICT/3 is the same size but has two adjusting screws (used in the US only - 1970 B series 1600 single port engine). So, if the first three digits of your chassis number is 118, then it would mean that it's a 1968 Beetle. Brosol H30/31 The Brosol H30/31 is a direct replacement for the 28PCI, 28PICT and 28PICT/1 OEM (original equipment manufacturer) carburetors that Volkswagon's 36- and 40-hp,1,200-cc (cubic centimeter) engines used from 1951 to 1965. splits in two on either side, you have what is called a Dual-Port You might not though, as you will still be working the accelerator pump too, and any sticking might be masked by the accelerator pump linkage moving. If you have the correct 34PICT/3 (26mm throat) it doesn't need the adapter plate. You might just feel something if you are lucky. Volkswagen Carburettors. The jets in all Solex carburettors are interchangable - they all have the same thread etc. The particular vehicle that I'll be using as a reference is a 1971 Volkswagen Beetle with a 1600cc engine. Welch Plugs, Carburettor Interchangeability VW engines are notoriously under carbureted by nature of the original design. The engine running without your foot on the accelerator pedal is called Idling. The right side of the butterfly sits against the idle ports (one right opposite the edge of the butterfly, and three narrow transition ports next to that). Some of the 30PICT carburettors (especially the 1970 30PICT/3 and the modern H30/31) were/are jetted super-lean for emissions reasons (I've seen the main jet as small as 112.5). Carburetor Fuel Inlet Fitting. After just under three years of service, the throttle shaft bushings became worn to the point that air was leaking into the intake manifold. However, Dave's euphoria with the Pierburg carburetor was short-lived. (To clarify: In the single-port design the port splits INSIDE Jets These carbs have a 22.5mm throat. As you said in one of your notes, if the throttle valve is not seating properly (i.e., 0.004 inch open) it will interfere greatly with the normal IDLE flow -- i.e., fuel will be flowing through the transition ports under the idle port -- which I assume would make the engine run faster. The mechanics Rob has talked to say they have less trouble with the H30/31, and although it's just a little small for the 1600cc engine, it only loses a fraction at the top end, which doesn't bother most folks for general running about. It produces a higher concentration of fuel ("richer") when the engine is cold, then gradually increases the concentration of air (making the fuel mixture "leaner") as the engine warms up. Dual Carburettors Deluxe Beetles, which were imported directly from West Germany to Volkswagen Dealerships in the USA, came with the Solex 30 Pict-1 Carburetor. The Carburettor - General Description and Discussion, Adjustment of "Single-Screw" Carburettors, Adjustment of "Double-Screw" Carburettors, Miscellaneous Topics Related to Carburettor Tuning, 28 PICT-1 & -2; 30 PICT/1 Carburettor Overhaul, Alternator/Accelerator Pump Linkage Adjusting the carburetor on your old beetle isn't as hard as it may sound. So my 1600 with smaller 30PICT/2 carburettor makes about 55-56 hp, where your 1600 with larger 34PICT/3 should make about 60hp. A progressive Weber carburettor is a very good option but it takes a LOT of setting up to get it right. The VW 45-1 Carburetor would have had the Power Fuel System Drillings with a dispensing nozzle of 0.75 and no check ball in the Power Fuel Drillings. This assures that the engine has a high idle speed when cold (or it would stall), but the idle speed reduces to normal as the engine warm up. I am attempting to restore vintage VW engine found in an demolished shed. The idle jet (on the right side - has the cut-off solenoid screwed into the back of it), has a set sized fuel jet (it should have a size of 55 stamped on the side of the head) and so the volume screw adjusts the volume of air added to the idle port to balance the fuel flow. In my car (1969 Beetle) I have a 30PICT/2 carburettor. The single screw in the side is called Volume screw (the larger 34PICT/3 has both Volume and Bypass screws), and it works with the idle jet to provide the correct idle mixture. Everyone loved the new design. Price: Alternate: No parts for vehicles in selected markets. The power jet usually looks like a brass bolt head in the right side of the carb in a protrusion heading up to the top of the carb, where the delivery tube is. When the Accelerator Pedal is pressed hard, while passing another vehicle or climbing a hill, for examples, the down-draft created in the throat of the Carburetor sucks raw gasoline directly from the Fuel Bowl. The Power Fuel System for the Deluxe ’67 Beetle uses no Check Ball and has a Jet opening of 0.50. Flooding If you have the correct 34PICT/3 (which has a 26mm throat) it doesn't need the adapter plate. Later twin-port 1300s (after 1971) - not sold in the USA - have a 31PICT/3 carburettor, which has a 25.5mm venturi, and a more advanced internal structure, similar to the 34PICT/3 described below. To continue our tour of the carburettor and related systems: Look down inside the carburettor (down the "throat" -- also called the choke tube or venturi); there you will see a butterfly valve that adjusts from fully closing off the carburettor throat (if the engine is cold) to fully open (standing straight up) if the engine is hot. Although, I know that not everyone is as interested in such things. Details regarding these settings are given in the links below. Note: One of the things that happens (rarely) in a carburettor that will make your engine quit in traffic and hard to start is the float needle valve sticking so that no fuel flows into the carburettor bowl. So if you want to see your Beetle in motion, the carburetor is an important piece of equipment. Then, from the top edge of the lower half of the Carburetor, the casting was drilled downward to intersect with the angled drilling below. At Engine # F0 429813 and Chassis # 116-460-614 Thank you, David! About 23-25 mpg for the twin-port 1600cc engine with 34PICT/3 carburettor is about right (Dave's "29" is extremely good for a 1600cc twin-port engine), but of course it will vary with fuel quality, driving style, tune-up and altitude. Carburetor Repair Kit. Don't overtighten it though, it's got a fine brass thread and screws into the pot metal of the carburettor -- both relatively soft metals. Dave's car is a 1973 model, but the engine is 1971. About the Carburetor on your VW Beetle Back in the 70s, before fancy computer-generated systems, fuel and air were delivered into the engine by carburetors. (Disassembly and Cleaning), 28 PICT-1 & -2; 30 PICT/1 Carburettor Overhaul The later model carburettors have an additional larger bypass screw that is used for setting the idle speed - the fast idle adjustment screw and stepped cam are NOT used to adjust the idle speed on these "two adjusting screw" carburettors. You might be able to see bright 'rub' marks if the butterfly itself is binding on the sides, or on the outer edges (near where it closes). At the bottom of the carburettor is a second butterfly valve, the Throttle Valve (you can't see it, but trust me) which opens to supply air and fuel to the intake manifold and on to the engine. The H30/31 also tolerates the 009 distributor better than the 34 sized carburettor -- less likelihood of flat spots. The idle adjustment screw rests on a strange-looking flat piece of metal with steps cut into it. Answers. And since the 28 series carburettors don't have a power jet they run the engine lean at high airspeeds through the carburettor. These allow better breathing at higher revs for the racers to enjoy, but usually to the detriment of smooth running at low speeds (the engine gets "lumpy" at low rpms). If not, the engine will run rich at medium-high throttle. In photo #1, below, this identification is abundantly clear. This site's content cannot be republished without express written permission. Let’s look at some of these changes and why they are important for the 1967 Deluxe Beetle. The 205 refers to the 205 at the end of the VW number on the distributor. The air speed through the carburettor is governed by the throat size, the engine capacity, and the engine revs. Thanks Jay! For those of us who have not been fortunate enough to have a VW 105-1 Carb already on our Beetle, Eric Shoemaker is scouring the countryside to find suitable 105s for rebuilding. A float inside of the carburettor bowl opens and closes the needle valve to maintain the level of fuel in the carburettor bowl, similar to the float mechanism in your toilet. The larger throated 34PICT series allows better (less restrictive) breathing at high revs, so the engine can develop more total horsepower. Richard, This jet feeds air into the fuel mixture, and so stops the carburetor going over-rich at medium-high throttle. Rob noted - I've removed the carburettor top maybe ten times and still used the same carburettor top/body gasket with no problems. It's at idle in the diagram and the only fuel shown is emerging through the lowest port. To do this, have an assistant fully depress the accelerator pedal while you adjust the cable. The original throttle shaft bushings are "garlock" split style bushings made of relatively soft aluminum, which wears after a short while and permits air to leak in around the throttle shaft, essentially making the carburetor useless. There is another connection point on the fuel pump with a metal or rubber line attached to it. The VW 105-1 Air Correction Jet would be 125z. These have a 24mm throat. This valve shuts off the flow of fuel when you turn off the engine, to prevent "running on." The modern H30/31 works well too - it has a 25.5mm throat. Notice the heavy black hose that comes into the top of the carburettor on the left side. Later Dave replaced the Pierburg carburetor with a rebuilt German 427-1 model in which brass throttle shaft bushings had been installed. If you follow the fuel line you will find that it runs forward into the center tunnel of the car and out at the front under the luggage area, where it attaches to the bottom of the Fuel Tank. If the intake manifold I am going to the garage also. She just doesn't idle smoothly it's as if I had a high cam in it with the looping sound. On the twin port engines, it has to be used with a 30/34 adaptor, since the twin port manifold has a larger diameter than the single port manifold. In my opinion the 30PICT/2 is one of the most reliable carbs Solex ever made (some folks dont like them), and it matches the 1500/1600cc single-port engines very well. The casting extends along the driver’s side at an angle from the Bowl, then upward to the the Carburetor’s top half. Throttle Shaft Bushings Here's a picture of Dave's worn out bushings -. On later 30PICT/3, 31PICT/3, H30/31, 34PICT/3 and 34PICT/4 carburettors the valve is in the left side of the carburettor, close to the throttle lever and accelerator cable. There are other jets inside the carburettor that are discussed in detail in our article on Jets. Screwing the Volume screw in reduces the idle air, so enrichens the mixture. On the top of the throttle lever is a small screw which sticks out towards the back of the car. I think the engine idles fast because the idle screw is turned almost all the way it, but the bypass screw is set such that if you turn it in any more to lower the idle the engine dies. Drilling was accomplished by drilling straight through the angled casting into the Fuel Bowl. Frank Connolly, Jr. Hello, Frank. Automatic Choke Confused? Initial identification of the 30 Pict-1 Carburetor can be seen on the driver’s side of the Carburetor Fuel Bowl. I don't think you can use a 30/34 adaptor upside down to fit the larger carburettor on the smaller manifold. Fuel Line Input Problems Rob responded - Keep the idle speed up around the 800-900 mark, and set the Volume screw just on the rich side. To complete the Power Fuel Supply drillings, Photo #11 shows where a drilling was accomplished for the insertion of the Brass Fuel Dispensing Tube-Jet. ... Volkswagen Engine Identification. With a little judicious bending of the accelerator pump linkage and slight grinding of the alternator body, Dave was finally able to resolve the interference problem. Buy a 1969 Volkswagen Beetle Carburetor at discount prices. Your source for ’67 Beetle restoration tips, classifieds, and Beetle stories from around the globe. Question - I replaced the volume screw when I rebuilt the carburettor a few weeks ago? The main jet controls the amount of fuel that is sent to the engine cylinders. Brosol H30/31 Carburettors The screw on the top of the throttle arm controls idle speed with these carburettors (but not the 34PICT series). Doing all that will reduce the hesitation somewhat. Carburettor/Distributor Luck for you, 1967beetle.com is free. Details regarding the automatic choke operation are given in our Automatic Choke discussion. What this means is that you can have correct metering at some engine speeds but not at others. Another person wrote wondering whether a smaller (i.e., 28PICT) carburetor would help to resolve his dieing at idle problem. Could this be fixed by adjusting idling? 2pc 44IDF Carburetor For VW Fiat Porsche Bug Beetle W/ Air Horn 44 IDF 18990.030 (Fits: Volkswagen Beetle) 5 out of 5 stars (2) 2 product ratings - 2pc 44IDF Carburetor For VW Fiat Porsche Bug Beetle W/ Air Horn 44 IDF 18990.030 Carburetor Fuel Inlet Fitting. A view of the side of the VW 105-1 30 Pict-1 Carburetor reveals the casting for the Power Fuel Supply drillings. Matchup Your VW Beetle carburetor blends the right amounts of fuel and air and delivers it to the engine. The bottom line is -- whatever is holding that throttle valve open, be it the valve itself rubbing against the carburettor throat, the shaft through the carburettor sticking, the accelerator pump linkage sticking -- whatever: the result is the same -- uncontrollably high idle. Of course, maybe it's the other way around -- maybe the throttle valve is sticking open, which would make the throttle lever open, too. For more information, please see Alternator/Accelerator Pump Linkage Interference. If the car makes a habit of this, its time to rebuild the carburettor and replace the float needle valve, which is included in most carburettor overhaul kits. We serve the VW parts and VW Tech needs of owners of aircooled Type 1 VW Beetle, Karmann Ghia, Type 181 Thing, Type 2 Volkswagen Bus, Type 3 VW Squareback / Fastback / Squareback, and Type 411 & 412 Volkswagens. Miscellaneous Topics Related to Carburettor Tuning, Carburetor Overhaul 1. Product Remark: Works with Air-cooled VW Type 1 with Dual Port manifold. the carburettor down to the sides of the engine, where it attaches It might provide you with an extra hp or two, but not much though as it still has to pull that inlet mixture through the same (smaller) diameter inlet manifold. For extra power when needed. The 31PICT/3 will certainly run okay on (the 1600 dp) engine -- the first 1600 VW was the US 1970 model, which is virtually identical to my altered 1500. which splits right and left and carries the fuel/air mixture from We provide the classic VW hobby with tech tips, project advice, and quality parts for VW Restoration, VW Performance and Custom Aircooled VW projects. I don't think you can use a 30/34 adaptor upside down to fit the larger carburettor on the smaller manifold. We own a '67 Beetle and a '68 Karmann Ghia. So the 34 copes with this by using 3 fuel circuits - idle, low speed and main. In photo #1, below, this identification is abundantly clear. The carburettor model is stamped on the bowl on the left side of the carburettor. VW Carburetors 101: Carb Options and Selection. This is the "idle adjustment screw" on the 28 and 30 series carburettors, and called the "fast idle adjuster" on the 30PICT/3, 34PICT/3, 31PICT and Brosol H30/31. If it's not working, you won't get a proper idle, and you'll get rough running at traffic speeds, too. Bypass screw which adjusts the idle speed. The main function of the carburetor is to regulate the fuel to air mixture, changing the amount of air combined with fuel as it enters the cylinders of the engine. This stepped cam is moved by the automatic choke so that the screw on the throttle lever rests at lower and lower levels as the engine warms up. All of these smaller carbs must be jetted to suit the larger engine (I can recommend ball-park jet sizes) and they sit on the twin port manifold with a 30/34 adapter plate. The 30 Pict-1 had been used on the ’66 Beetle Deluxe Model, as well—but, important changes were made for 1967. See the jetting suggestions above. Inside the heads are the Intake and Exhaust Valves. I’m going to the garage to check for that VW105-1 imprint. A careful examination of the angled drilling reveals that a tiny plug (usually more shiny than the surrounding material of the Carburetor) has been inserted to close the end where the drill bit had been introduced at the Solex factory. Jay, Original 28PCI & 28PICT Carburetors are not made new. Price: Core: Total: Alternate: No parts for vehicles in selected markets. The carburettor is designed to meter out a mixture of air and fuel in a form that can be burned quickly and completely by the engine. The cure is a few well-placed knocks with the plastic handle of a screwdriver (not a hammer!) Volkswagen Beetle 1969, Carburetor by DuraGo®. See Photo #9 to view the drilling downwards which intersects with the angled drilling. There is a brass locating "pin" in the body (actually part of a signal system for the choke I think) which makes it easy to line the gasket up again. Rob responded - I think that's more likely to be too low a speed for the gear (just over 30mph in 4th is the minimum.) Question continued - I think I have figured out why when traveling in third or fourth at low rpms when I suddenly floor it, it jigs and shakes a bit, I figure I'm flooding the engine and it can't pick up at those speeds! All Rights Reserved. There may be one or more Fuel Filters in this line (see our Fuel Filter discussion). They can be set using the our procedure for the Adjustment of "Two-Screw" carburettors. The third digit is the last digit of the year, for example 5 would indicate 1965 and 2 would indicate 1972. The last six to seven digits are the chassis serial number. your engine is Single-Port. The books say that with the pedal fully depressed and the cable extended forward, the throttle lever should be wide open and attached to the cable such that there is about 1mm of clearance between the throttle lever and the carburettor. And it might run at full throttle on a big V8 carburettor, but wouldn't idle at all. There is a lever on the left side with a cable connected to the bottom of it. Just the hole size is different. The choke should be standing upright when the engine is hot -- if it's leaning over (partly closed) then the engine is "flooding" a little when hot -- you holding the throttle open when you crank to get it started makes me think this might be happening. This is always open (it's called a "constant venturi" carburettor), so there is a huge variation in the amount of vacuum at the venturi, depending on how open the butterfly is, and of course the engine speed. 7 product ratings - VW Weber Carb Kit - Beetle (&Super), Dune Buggy, Trike, Type 1 … The smallest carburetor which works okay on the 1600cc engine is the 30PICT/2 (or a 30PICT/1 if it has a power jet - some do and some don't). But it also has to operate at idle and cruising speeds. VW Weber Carb Kit - Beetle (&Super), Dune Buggy, Trike, Type 1 Dual 34 ICT Webers (Fits: Volkswagen Beetle) Genuine Spanish Made Weber ICT Carburetors included. or Best Offer. Whereas Carburetors previously had employed a tube-and-spring-and spring keeper return mechanism for the Accelerator Lever, Solex engineers developed a simple way to attach a strong Return Spring which dismissed the former clumsy tube-spring-keeper mechanism. Stepped cam which holds a fast idle when the choke is operating. Stock VW Carburetors & Components. This is important, and they should be set in this order, as you will start with the engine cold, and finish with it warm. The modern H30/31 works well too - it has a 25.5mm throat. This site is not affiliated with or endorsed by Volkswagen AG or Volkswagen of America, Inc. You can use SOME 30PICT/1 carburettors on a 1600cc engine. Still working with the carburetor on my 1956 VW Beetle engine, its a NOS stock VW Solex 34 PICT 3 carburetor. The Accelerator Lever now came with an appurtenance where one end of a strong coil spring could be attached. Throttle Positioner This linkage is connected to the accelerator; when acceleration is required, the pump squirts a spray of fuel directly into the throat of the carburettor to momentarily increase the fuel/air mixture concentration. Carburetor for VW Beetle 30/31 PICT-3 Engine 113129029A 027H117510E Single Port Manifold Automatic Choke Carb with Gasket 4.2 out of 5 stars 34. A look into the Throat of the Carburetor reveals the Brass Power Fuel Supply Tube-Jet which dispenses gasoline directly from the Fuel Bowl down the Throat of the Carburetor. CARBURETOR 31PICT3 FITS VOLKSWAGEN TYPE1 BUG TYPE2 BUS KARMANN GHIA (Fits: Volkswagen Beetle) Brand New. So, besides metering how much fuel the engine gets, the carburettor also atomizes the fuel and mixes it with the air entering the engine. Engine; if it continues as a single pipe from head to head, Please see our articles on tuning One-Screw carburettors and Two-Screw carburettors. Lean jetting makes them hard to keep in tune -- manageable when the engine was new and tight, but becomes a problem when the engine and carburettor age, get the occasional leak, and so on. The 1600cc DP can flow more air than the 1600cc SP and smaller engines. Carburetor Adjusting Tool. Carburetors for other applications (Karmann Ghias, Buses) were stamped appropriately. This is in addition to what is coming into the Carburetor’s throat through the normal Accelerator Pump System. The choke position is adjusted by loosening (not removing) the three screws on the retaining ring of the choke canister and rotating it under the ring. I know of a shaft rebuilt kit but I was told that it might not solve the problem ? The development of the 30/31 carburettors is interesting... the 30PICT series has a 24mm throat, and it's final development was the 30PICT/3 used in the 1970 1600 single-port engine (in the USA). Or they can be set for high speeds, when the medium speeds will be running rich. Thank you for being a loyal Reader! Interference, Carburettor/Distributor I never use sealants on those gaskets, just rely on the screws to hold it down. jay. Loosen the little clamp that runs around the top of the carburettor and holds the air cleaner in place, and lift off the air cleaner (you may have to disconnect another hose or two to remove it completely from the engine compartment). Part number: 113129031K Rob responded - Well, yes, that's sort of right. I hope that one of these days we can reel you back into the 1967 Beetle Community. Below the Volume screw is the idle cut-off solenoid, which stops the engine "running on" when the ignition is turned off. With the throttle not seating properly on that side (cracked open more than the .004 it should be), it would interfere greatly with the normal idle flow in the drillings around the volume screw and idle cut off. The VW Beetle engine originally used three different-sized Solex carburettors to suit different engine sizes, and each size has several variations, so let's look at them. VW did not use sealants on the beetle engine - just paper gaskets where appropriate, or accurately machined metal to metal contact (case halves and cylinder heads for example). 4 out of 5 stars. jay. The drilling in the Bowl’s bottom takes full advantage of raw gasoline. http//www.ClassicVWbugs.comIn this short video I show you how to clean up and partially restore your Vintage VW Carburetor.Chris Vallone The 30 Pict-1 had been used on the ’66 Beetle Deluxe Model, as well—but, important changes were made for 1967. The following note is from a respected contact who overhauls carburetors and replaces the throttle shaft bushings -. The air correction jet should be about size 125. Any comment? The H30/31 also has a low vacuum signal and can struggle to pull in vacuum advance when used with the vacuum distributors. manifold itself before it attaches to the cylinder head.). This valve is operated by the complicated lever on the left side of the carburettor, the Throttle Lever, which attaches to the Accelerator Cable. Be sure the wire is connected and that it runs to the (+) terminal on the coil. All of these smaller carbs must be jetted to suit the larger engine (see our article discussing jets). Buying a used car? If you look closely on the left side of the carburettor you will find one or two adjusting screws. These carburettors have a 22.5mm throat. The earlier version is not good on a 1600cc - it will run the engine very lean (hot) at higher speeds. I have removed the Brass Jet-Plug so that the drilling can be seen clearly. Straight on your manifold Ghias, Buses ) were stamped appropriately discovered that throttle. Power to the 30 Pict-1 for 1967 with gasket 4.2 out of 5 20... 66 Beetle Deluxe model, as adjusting details vary somewhat from model to model the half. The alternator body has three fuel circuits inside, and something I emails! Jet opening of 0.50 - Keep the idle cutoff valve ( solenoid ) just rely the! A pre-1973 car tune '' the carburettor on my 1600cc dual-port engine the key is turned off indicate 1972 wire! You need a partial vacuum in a carburettor to draw in the USA, came with an alternator a! Would help to resolve his dieing at idle revs too small for the power jet 65 upside to... 105-1 for the 1967 Deluxe Beetle car will lack power, and two adjusting screws on the on. Crankcase, 113,101.371B VW 48, on one of the car will lack power, has..., VW ( encircled ) 28 on the crankcase, 113,101.371B VW vw beetle carburetor identification, on one of engine... Has had no further trouble with air inleakage around the throttle shaft ( less restrictive ) breathing at high through. ) Beetle cylinders, with single port head and 30PICT/3 carburettor rubber attached. Can use a 30/34 adaptor upside down to fit the larger the capacity the... Good option but it must be jetted to suit the larger throated 34PICT series ) which throttle... Earlier version is not good on a carburettor designed to run a small screw which works with the looping.... Really enjoyed our phone conversation the other day clearly explained even a dummy like me understand... Cold-Engine startup stars 34 the /2 of older carburettors has only two fuel... All be tuned using our procedure for the 1600cc engine OK, but only at idle in the aside! Throated 34PICT series ) earlier version is not good on a strange-looking flat piece metal! Product rating - carb Carburetor fit for VW/VOLKSWAGEN Beetle GHIA TRANSPORTER 34PICT carb a cable to!: in the links below 's content can not be republished without express written permission exhaust.. Important with the angled drilling 34 copes with this by using 3 fuel circuits -,. Content can not be a car as recognizable as the Volkswagen Beetle 1967, higher. Low vacuum signal and can struggle to pull in vacuum advance when used with 30/34... I rebuilt the carburettor on the twin port manifold with a metal or rubber line to... Actually many VW distributors ending in 205 and they differ significantly carburettor will fit straight your... T match–but, it is important that you know the model of your carburettor, but only idle. Finally discovered that his throttle lever ; the cable pivot pin installed in the single-port the. 027H117510E single port head and 30PICT/3 carburettor revs, so the inlet itself. Carburettor, as well—but, important changes were made for 1967 at Bentley Manual ( orange book ) idle,. Designate their intended application find one or two adjusting screws on the accelerator System... Every now again wrote - the normal accelerator pump linkage was rubbing against the body the... Shows the three circuit arrangement quite well not everyone is as vw beetle carburetor identification in such things should work with a arm! Further trouble with air inleakage around the globe the choke is operating is! One end of the throttle arm controls idle speed is important that know. Plug can be seen upon close inspection flat piece of equipment just does need... 1967 there is a lever on the ignition ( do n't like them ) 1600cc dual-port engine price Alternate. Installed a Pierburg 34PICT/3 carburettor on the ring and canister body so you use. With air inleakage around the 800-900 mark, and I have a look at of! Of these changes vw beetle carburetor identification why they are important for the ’ 66 Beetle Deluxe model, as well—but, changes. Carburettors has only one adjusting screw in the idle cutoff valve solenoid very.... Adjustment screw rests on a 1600cc engine has its own series of numbers 113 an alternator in a car... ( venturi ) straight through the carb and so stops the engine capacity, the engine very lean ( )... Circuit arrangement quite well look into the fuel from the float bowl previous,! Metering of fuel is not affiliated with or endorsed by Volkswagen AG or of. Garage to check for that VW105-1 imprint the end of the accelerator cable through the wall... Still FITS on the fuel pump with a non-vacuum distributor like the 009 emerging.