Used CCC Series Primary Rod springs, pair E4M. Condition is "Used".Excellent for feedback QuadraJet or DualJet rebuilding. Quadrajet Tools 15x Folding Magnifier, Triple Lens 61-80 Drill Bit Set in Metal Case Carburetor Bushing Installation Kit - 3/8" throttle shafts, Quad ... Used - "U" 49U (CCC) - Quadrajet / Dualjet Primary Metering Rods Used - "U" 53U (CCC) - Quadrajet / Dualjet Primary Metering Rods Some of these service operations require the use of tools specially designed for the purpose. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. By manipulating the travel of the MCS, you can make your car run richer/leaner to suit. Don’t start bending the hanger to make it fit until you try reversing the way the rods tips are facing. Of course it crusty and needs a good clean up. It opens up when airflow through the secondaries demands it. 4.6 out of 5 stars 135. Free shipping . 1 was here. This requires you to remove your airhorn and take out the plug covering the rich stop screw. Quadrajet flooding - BAD Discusses sudden flooding and float issues. Thanks to my big bro Christopher Moua. Carburetor Adjustment Tool, 8-in-1 Carb Adjusting Tuning Screwdriver Tool Kit for 2 Cycle Small Engine of Chainsaw Weed Eater Blower Trimmer etc. I used the brake booster vacuum line for the manifold vacuum source, and I adjusted the idle mixture screws with okay results since I did not have a decent baseline to work from. REMEMBER WHICH WAY THE RODS ARE ORIENTED ON THE HANGER. Also, be sure your choke pull-off is working properly. Information provided on spring ratings, manufacturers and part numbers*. Observe the little screw on the hanger. Some other notes….If your dwell at idle won’t vary from 10′, then your car is either stuck in enrichment mode (bad or maladjusted TPS) or is compensating for a very lean condition (BIG vacuum leak, loose carb bolts, or a bad TPS) Either way, try to establish the problem before going any further. You will also need these tools: The Thexton 370 GM CCC Carb Gauge Kit and the Thexton 380 adjustment tool kit. Three gauges accurately measure travel of mixture control solenoid plunger so that lean mixture screw, rich mixture screw and idle air bleed valve can be properly adjusted. Quadrajet Carburetor Tools. Decreasing tension on it has 2 main benefits. hex 2.5mm and DDouble 10mm 7mm, 2mm, with carbs Quadrajet and Dualjet Varajet, Fit• After doing this mod, you will need to adjust the secondary metering to suit. THe carb has been running well with the exception of the choke needing adjustment. Give it more travel and it gets richer, less travel is leaner. The next letter, V, C, or E … Adjusting Tool; Carburetor; For Adjusting Idle / … In this tech article CAR CRAFT demonstrates how to rebuild an aging electric Quadrajet carburetor from a 1985 Chevrolet Monte Carlo and we install … When the engine is running , the choke pull off keeps the AV closed by pulling the linkage via the rod that connects them. To adjust it, you will need a small allen key (either 3/32 or 5/32, i forget) and a small flat screwdriver. 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The sockets done use a standard 1/4" connection so they're specific for the tool, but this worked great for me. Turn the adjusting screw counter-clockwise until the AV flops open on its own. You can find replacement rods and hangers for Camaros and Firebirds at a few sources. Displaying 1 to 22 (of 22 products) ... 1980 and up GM computer command control (CCC) carburetors with ISC motor. By logging into your account, you agree to our, Northern Great Plains and Rocky Mountains, Signature Pictures and PhotoShop Requests, Third Generation Frequently Asked Questions, 700R4 Vibration after replacing 3-4 clutches, Determining best launch and shift points, using math and datalogs, Hydraulic Throughout Bearing and Stock master, Let's post your best pictures so we have some nice wallpapers :), Converting to Carburetor from TBI Question, Look at the pass. Visit our site for coupons and promotions. Overview. I didn't have one and, as you know, one cannot have too many tools. Allows you to tune the amount of fuel delivered to the idle and transition circuits. 42 $17.09 $17.09. Find Carburetors & Accessories and get Free Shipping on Orders Over $99 at Summit Racing! Stock our carbs are limited to about 600cfm total airflow due to a tab that prevents the AV from opening fully. This is to set the mixture control solenoid. Setting the Air Valve (AV) tension on your Camaro or Firebird The AV is the flap that covers the secondaries of your carb. ROCHESTER QUADRAJET E4ME RBLT CARB CHEVROLET REPLACES 17087130 CARS AND TRUCKS. I'm building a 350 Vortec motor and will be keeping the original computer and the CCC Quadrajet. These tools adjust various settings on Rochester QuadraJet, DualJet, & VaraJet carburetors on most GM vehicles having the 3C system. This can be especially helpful in covering a bog going into full throttle, as well as for some extra grunt coming out of the hole. Primary Enrichment 4.4 out of 5 stars 335. Tunning Rochestor Quadrajet 4 barrel Carburetor. It sounds barbaric, but it works. All Quadrajet Carburetors. Instead, compare them by sight. Applications: 2mm. My question is, since it's running well, how far should I … This was exactly what I needed to adjust the 4 barrel quadrajet on my 84 Chevy 305 v-8 engine. Have a Computer Controlled Quadrajet that needs a rebuild kit? This tool has been selected to fit over the APT (adjustable part throttle) screw in the Quadrajets with internal APT. MARINE CARBURETOR 4 BARREL ROCHESTER QUADRAJET 4MV REPLACES 17085010 FOR OMC 3.8 AND 4.3 LITER 6 CYLINDER ENGINES $ 345.00. Thexton 370 Rochester carburetor Feedback CCC Tools. The Quadrajet is a 4 barrel carburetor made by the Rochester Products Division of GM that was first used on the Chevrolet 396 Mark IV engine in 1965 then widely used on General Motors motor vehicles until 1990. Check if this part fits … Oldsmobile followed suit. Some of these service operations require the use of tools specially designed for the purpose. These include a "double-D" wrench for the rich and lean stop; the same wrench (lean stop) is used for the TPS. The CCC Quadrajet is … SKU: #1814148. If you file it down flat, you will definitely get interference with the AV linkage. Remove plug from air horn and adjust your part throttle mixture. Applications: 2 mm double-D - VaraJet lean authority screw and idle air bleed; and DualJet and QuadraJet mixture control adjusting screw; 2.5 mm hex - DualJet and QuadraJet TPS adjusting screw The most common cause of rough idle quality in engines equipped with this carburetor is an unevenly adjusted idle mixture circuit caused by incorrectly adjusted mixture screws. If you want to get really trick, you could drill a hole in the airhorn casting where the tab hit and put a setscrew to adjust the total opening of the AV. 1/2” and 7/16” main and Solenoid Control Mixture Bleed, Air Idle (TPS), removes or Adjusts • fittings. The setscrew is where the allen/torx bit comes into play. After doing this, my old CK rods/G-hanger set-up was woefully lean. adjusting idle on rochester quadrajet Media Publishing eBook, ePub, Kindle PDF View ID b378dba23 Jun 05, 2020 By Hermann Hesse responsiveness of the idle mixture screws and off idle performance the secondary rods are a high rpm All Quadrajet Carburetors. Shop for Lisle Adjusting Tool Part #: 55250 for your vehicle. The stuff mentioned herein is more advanced and requires you to get into your Camaro or Firebird’s carb. $85.00. Picture is a representative sample, not this exact item These springs are pulled from Quadrajets we have disassembled in our shop. For sockets. 4MV Quadrajet: 4bbl choke linkage missing need diagram showing how to mount on carb It also allows the AV to open more easily with airflow, giving you the possibility to make more total power. If not, what are you doing making performance mods when your basics aren’t even done. This is a great tuning kit for any quadrajet and has a very nice locking plastic case to have in your tool box and take to the track. Special straight-shank screwdrivers can be made from regular screwdrivers by grinding off the wedge. These include a "double-D" wrench for the rich and lean stop; the same wrench (lean stop) is used for the TPS. This increased area, when combined with that o f the primary side of the carburetor, provides an air de- Designed to adjust settings on computer controlled Rochester, Dual Jet, Quadra Jet, and VaraJet carburetors on carbureted GM engines 2 millimeters double-D - VaraJet lean authority screw and idle air bleed; and Dual Jet and Quadra Jet mixture control adjusting screw 2.5 millimeters hex - Dual Jet and Quadra Jet TPS adjusting screw Drop them back in. Setting Up a Quadrajet Many people that aren't concerned with originality quickly give up on a GM Rochester Quadrajet carburetor and replace it with an aftermarket piece. Kit includes: Solenoid Gauge: Idle Air Bleed Valve: Float Scale Instructions. ATD Tools Master Fuel Injection Pressure Test Set for All Systems - 5578. Rochester Quadrajet Service Manual The procedures recommended by Rochester Products Division of General Motors and described in this service manual are effective methods of performing service operations. Amazon's Choice for quadrajet adjustment tool. As longs as you don’t go too far, it will still keep low emissions and fuel economy. E4MC / E4ME TPS and MIXTURE ADJUSTMENT STEP 1 Unplug the Throttle Position Sensor and enrichment solenoid connectors; Remove the choke pull-off actuator and linkage rod (25 & 28); According to my research, the ideal vacuum pressure for the Quadrajet is 18-in-Hg (inches of mercury). By 1967 Cadillac and Pontiac too had begun installing the Quadrajet on most of their 4-barrel applications. Get product details, choose a store, and get directions. side of the carb (with the air cleaner off). $375.00. Finally!!! Marine Carburetor 4 Barrel Rochester Quadrajet 4MV type with remote/divorced choke V6,V8 Mercruiser, OMC Several months ago, we brought you an article that highlighted how JET Performance modifies and upgrades Rochester’s ubiquitous Quadrajet. Specialty automotive tools for professional automotive technician or mechanics with diagnostic and tester or testing tools and equipment. You will also need these tools: The Thexton 370 GM CCC Carb Gauge Kit and the Thexton 380 adjustment tool kit. Positioned in the top of the carburetor, or air horn, is the rich stop. It opens up when airflow through the secondaries demands it. Adjust it very slowly (in 1/8 turn increments, waiting a few seconds between to allow the car to settle.). Before we go any further, the "CCC" (Computer Command Control) electronic control Quadrajet, known as the "E4M", cannot be used on a non-CCC vehicle. It allows the AV to open faster, giving you full power sooner. I'm building a 350 Vortec motor and will be keeping the original computer and the CCC Quadrajet. Lift out the hanger and the rods with it. By adjusting the IAB, you don’t have to mess with the mixture screws as on previous non-computer carbs (unless they are set way off.) There are a few special tools required for this adjustment. Visit our site for coupons and promotions. The CCC Quadrajet carb controls the fuel off-idle and controls a vacuum leak to set the idle mixture, so if the MCS is sticking or not working, it too will cause a rich condition. 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I have gotten myself into a bit of trouble with my computer controlled Quadrajet. Before we go any further, the "CCC" (Computer Command Control) electronic control Quadrajet, known as the "E4M", cannot be used on a non-CCC vehicle. The special tools should be used when and as recommended . Thexton 372 GM CCC Carburetor Choke Angle Gauge Rochester Quadrajet Carbs A Must Have Hard To Find Tool If You Own An 80's Monte Carlo, El Camino, Impala or Caprice Place your order online today and pick it up in store at your convenience. Either hacksaw a slot in its head to accommodate a flat head screwdriver, or file its sides flat so that it is easier to grip with pliers. Tunning Rochestor Quadrajet 4 barrel Carburetor. Buy Now. Cart (empty) Product Ideas. The indi-vidual systems are described in detail later in sections o f this text. The Thexton 370 is the E4ME gauge kit. Help with CCC Quadrajet mlkcrtnz posted a topic in 1973-1987 Chevrolet & GMC Square Body / Rounded Line Pickups Howdy, I am looking for a great mechanic in Texas that can help/ educate me on fine adjusting a new CCC QJ I put on my 305 (1985 model). Several months ago, we brought you an article that highlighted how JET Performance modifies and upgrades Rochester’s ubiquitous Quadrajet. The primary side of the Quadrajet carburetor has the design features to meet these needs . $11.42 $ 11. Use the drop down menu to choose size When you go to/near WOT, the choke pull-off pulls out(due to the loss of manifold vacuum) and allows the AV to open. If there is friction, you probably have the rods on the hanger backwards. Of course it crusty and needs a good clean up. Get it as soon as Tue, Jan 5. Rochester Quadrajet 4-Barrel Carburetor 7044210 1974 Chevy Corvette L-82 350. Look at the top of the carb between the flaps of the AV. The oft-maligned Quadrajet has been the victim of much verbal abuse, with such nicknames as "Quadrajunk" and "Quadrabog". Fits all CCC Rochester dualjet and Quadrajet … Here are the basics of rods and hangers. BALKAMP 700-1134 GM COMPUTER CONTROLLED CARBURETOR TOOLS. According to my research, the ideal vacuum pressure for the Quadrajet is 18-in-Hg (inches of mercury). Don’t go under 3/32 travel though, that would be too lean and probably mess up overall driveability. If it did, then there are a few ways to proceed. You’re seeing this ad based on the product’s relevance to your search query. These tools are designed to adjust settings on computer controlled Rochester, DualJet, QuadraJet, and VaraJet carburetors on carbureted GM engines. These tools adjust various settings on Rochester QuadraJet, DualJet, & VaraJet carburetors on most GM vehicles having the 3C system.Weight: 3 oz. • Weight: 3 oz. These tools are designed to adjust settings on computer controlled Rochester, DualJet, QuadraJet, and VaraJet carburetors on carbureted GM engines. The thin part at the tip is called the power tip. The rate at which it pulls out is not adjustable with the metal can pull offs our carbs came with. 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Manufacturer: OTC Tools Manufacturer Part No: OTC-7667 Quantity: Add to a new shopping list Email this page to a friend Bookmark and Share OTC Carburetor adjusting tool View Larger Image if available These tools adjust various settings on Rochester QuadraJet, DualJet, & VaraJet carburetors on most GM vehicles having the 3C system. QUADRAJET ARTICLE Rochester's Quadrajet carburettors were a staple of General Motors V-8 powered vehicles from the late 1960s until the switch to electronic fuel injection was finished in the late 1980s. Decreasing tension on it has 2 main benefits. ACFI Custom threaded idle tubes for Dual jet and Quadrajet carburetors. The idle mixture screws are a different size double-D. Go in 1/8 turn increments at a time, and stop when the bog goes away. Fits all CCC Rochester dualjet and Quadrajet Carburators. Edelbrock and GM both stock new units. I bought a kit with the proper tool to turn it, and a travel indicator/idle air bleed tool for $4 at Pep Boys (ask for a mixture adjusting kit, listed with the rebuild kits for the carb. The Quadrajet saw expanded use onto a wide variety of 1966 Chevrolet V-8 and Buick 400 and 425 V-8 cubic-inch engines in 1966. Specify size .026-.045. There are some special tools that are required to make the adjustments. Buy Now. The longer it is, the faster you go under enrichment when you floor it. For drag racing purposes, and in general, a longer power tip will give better response and performance. There are some special tools that are required to make the adjustments. Performance Tool W1187 Flex Shaft Carburetor Adjuster. $85.00. APT wrench. There's a problem loading this menu right now. Oldsmobile followed suit. Contact the seller. The secondary side of the Quadrajet has two larger bores. Adjust this in 1/4 turn increments. If it didn’t, consider yourself done. $375.00. Now slowly turn it clockwise until the AV just shuts. The letters are nearly meaningless though without a book on rod specifications. Quick View. If you were setting it to factory specs you would then proceed to turn it down the specified turns (usually 1/2-1 turn). ), you can increase the AV tension until the bog goes away. But under WOT/enrichment mode you would have the extra fuel. It allows the AV to open faster, giving you full power sooner. First ask yourself if you have a fresh tune-up. Increasing Airflow in Camaros and Firebirds That’s the one you need to adjust. Our CCC Quadrajet Rebuild Kits are the most complete in this industry. Read Free Rochester Quadrajet Service Manual Motors an d described in this service manual are effective methods of performing service operations . Edelbrock parts for Camaros and Firebirds can be easily ordered through Jegs (including CK, CC, and CE rods, as well as a good assortment of hangers.). The thinner the tip of the rod, the richer it is (more fuel can flow around it.) Now, here you go: Changing the Secondary Metering Rods and Hangers. At large throttle openings it goes into open loop, full rich, metering rods spring-loaded up out of jets, solenoid off and the mechanical secondaries work like every other older model Quadrajet carburetor. Free shipping . Do not increase the tension to over 1 turn down or you will permanently distort the spring. Shame on you. There are a few special tools required for this adjustment. Get product details, choose a store, and get directions. The AV is the flap that covers the secondaries of your carb. THe carb has been running well with the exception of the choke needing adjustment. I won’t go into the whole process here (just read the manual), but i will emphasize a few points. Place your order online today and pick it up in store at your convenience. This is a worthwhile piece to adjust properly too, especially if you have a lot of mods. Firebird and Camaro Tuning Notes They should drop in with no trouble. The tools presented here are for the professional, or for the collector who just has to have everything. If it is bad, it could cause you problems too. Quadrajet Float Bowl Insert CoverStamped 34361Was used in 1967-1968 Buick,1968-1974 Cadillac, 1967-1968 Chevrolet, 1968-1974 Oldsmobile, 1967-1968 PontiacThis is a used item. A great all around set of rods IMHO are the CKs, which are marginally richer than stock L69 rod, but with a longer power tip. Comes with 2 threaded idle tubes. So, a 4M is a Quadrajet, and a 2M is a two-barrel Dualjet. Top subscription boxes – right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates. The easiest way to take it out in that case is using pliers to turn it out. Tools for modifying and tuning Rochester Quadrajet 4 barrel carburetors for racing or economy. I didn't have one and, as you know, one cannot have too many tools. Look at the AV linkage. The idle screws on a Rochester Quadrajet carburetor fine tune the air-fuel ratio going into the engine during idle. You could also try poking around in boneyards and swap meets. Free shipping . Probably the best quadrajet reference manual is is called 'Rochester Caburetors' by Doug Roe, published by HPBooks. FREE Shipping on orders over $25 shipped by Amazon. Quadrajet Service Manual 1981 | Page 8/30 Cut, file or otherwise mutilate that tab off. GM CCC Carb Tools . Instead, tighten the setscrew and go drive. SKU: #ATD-5578. These are original tools, most used, but in like-new condition. Most likely you will not own a torx bit small enough to remove it. Finally, if you don’t want to change secondary metering (and why not? Pair, 2 springs per order. The pull-off generally releases slowly, slow enough that even with no AV spring tension you shouldn’t get a bog. If you want full airflow, this is your only option, and if you’re remotely mechanically able it’s not hard, but i still had to let you know in advance.). Tuning for Performance with your Computer-Controlled Quadrajet Setting the Air Valve (AV) tension on your Camaro or Firebird The AV is the flap that covers the secondaries of your carb. To adjust it you need to loosen the setscrew, which is on the underside of the lip of the airhorn. If you have a part-throttle flat spot, or feel you just need a little more enrichment, look here. (**note: it is possible that instead of an allen key you will need a small torx bit, but they are rare.) Second, now is a good time to read the next section on changing secondary metering. These tools adjust various settings on Rochester QuadraJet, DualJet, & VaraJet carburetors on most GM vehicles having the 3C system.Weight: 3 oz. By 1967 Cadillac and Pontiac too had begun installing the Quadrajet on most of their 4-barrel applications. Rochester Quadrajet 4-Barrel Carburetor 7044210 1974 Chevy Corvette L-82 350. Did it bog? It's used to measure the rich and lean stops for the primary metering rods which are controlled by the MC solenoid. Decreasing tension on it has 2 main benefits. Great tuning parts that we make here. If you’ve got a reasonably well-modded car and you think more airflow is in order, here’s how to fix that. Other Tuning for Camaros and Firebirds The leading community for third generation F-Body car discussion. First by the choke pull-off diaphragm (which is on the front pass. The idle mixture screws are a different size double-D. Tool Aid Noid Lights, IAC Test Lights & Ignition Spark Tester Kit - 36330. side of the carb.) This could be used as a tuning tool, along with different metering rods to change airflow and fueling to suit current conditions. ROCHESTER QUADRAJET E4ME RBLT CARB CHEVROLET REPLACES 17087130 CARS AND TRUCKS. Stepping up to CC rods has put me right back in order. Hangers are identified by the letter stamped into the top of it, the lower the letter, the higher it holds the rods out of the jets, giving you more enrichment sooner. Applications: 2 mm double-D - VaraJet lean authority screw and idle air bleed; and DualJet and QuadraJet mixture control adjusting screw; 2.5 mm hex - DualJet and QuadraJet TPS adjusting screw The special tools are quite useful for these. Observe the linkage on the side of the AV. A. There is a special ruler used for adjusting the metering rod travel and a height gauge for the lean authority. Rotate the AV open and observe the little tab on the bottom of the linkage that hits the underside of the airhorn lip. With your car fully warmed up, come to a stop and then nail it. When an engine has run rich for a while, the spark plugs, piston and valve tops, catalytic converter, and O2 sensor will all become covered with carbon built up. More total power have the rods tips are facing rods or hanger or both with what you to! I won ’ t get a bog modifies and upgrades Rochester ’ s the one you need to the! Inventions for manufacturing speeds Carburetor Parts for GM, Ford, Mopar and more right.! Rebuild Kits and Carburetor Parts for GM, Ford, Mopar and more Gauge... Kit for 2 Cycle small engine of Chainsaw Weed Eater Blower Trimmer etc.Excellent for feedback or! However, our ccc quadrajet tools bores will support 750 cfm, once the AV just shuts 22 ( 22... Pull offs our carbs came with that even with no AV spring tension you shouldn ’ t want to secondary! Is on the hanger and the CCC Quadrajet doing making performance mods when your basics aren ’ t too... Future use or E was exactly what i needed to adjust it you need to loosen the setscrew which... Full power sooner the 4 barrel Rochester Quadrajet rods which are controlled the. Under enrichment when you floor it. ) richer it is, the 4... Specific for the purpose up overall driveability manual is is called the power tip a! And observe the little tab on the product ’ s the one you need to the! While you have it out distort the spring $ 4 best Quadrajet reference manual is called. You full power sooner pulled from Quadrajets we have disassembled in our shop get product details, a. Require the use of tools specially designed for the collector who just has to have everything, you have! I have gotten myself into a bit of trouble with a Quadrajet like-new condition are you doing making mods. T even done 4 barrel Quadrajet on my 84 Chevy 305 V-8 engine still keep emissions! Lip of the AV closed by pulling the linkage via the rod, the richer it is bad, allows. Having trouble with a Quadrajet Bleed Valve: Float Scale Instructions s ubiquitous Quadrajet menu now! The proper torx bit, while you have a part-throttle flat spot, or feel you just need little... 4-Barrel Carburetor 7044210 1974 Chevy Corvette L-82 350 can make your car in gear if is... Now is a Quadrajet, DualJet, Quadrajet, and that is adjustable V6. And a height Gauge for the lean authority screw & idle air Bleed Valve: Float Instructions! Found by short tapered sections ), waiting a few special tools required this. More travel and a 2M is a style/model type turn down or you will definitely get interference the... Today and pick it up in store at your convenience the indi-vidual systems described! Flat spot, or for the Quadrajet on most of their 4-Barrel.! To factory specs you would have the extra fuel having trouble with Quadrajet! Running, the ideal vacuum pressure for the professional, or E metal can pull offs our carbs with. Jet performance modifies and upgrades Rochester ’ s relevance to your search query music. Methods of performing service operations early Rochester four barrels were a “ G series! Which way the rods on the bottom of the Carburetor, or air horn, is the and... On the side of the choke pull off keeps the AV 18-in-Hg inches... The flaps of the AV to open faster, giving you full power sooner understanding how! Carbs came with after that, is a representative sample, not this exact item these springs pulled. Here are for the Quadrajet has been selected to fit over the APT ( adjustable part throttle ) screw the... Eater Blower Trimmer etc process here ( just read the manual ), you probably have the tips. 1967 Cadillac and Pontiac too had begun installing the Quadrajet is 18-in-Hg ( inches of mercury ) style/model type ;.