edelbrock carburetor hesitation on accelerationnoise ordinance greenfield, wi
If it is, it can cause all sorts of problems. This way, if you get messed up or lost, you can always return to this setting as your baseline. As you move the pump up, the well will fill up using the slot described earlier. Avoid soaking the pump in oil overnight. 2, Cure The Bog And Sluggish Response On Your Holley Four-Barrel Carburetor By Properly Adjusting The Accelerator Pump Assembly. The engine is a 440 with headers, an Edelbrock Victor, Jr. intake, and some kind of cam. you overlooked the holley! Any suggestions? Now he serves as a regular contributor to OnAllCylinders. I've adjusted the timing to several positions, Readjusted the Holley regulator(lower and higher), Adjusted the air mixture and even went over the valves, All that and still have the problem. This opens the throttle blades to uncover what is called the transition slot. The off idle stumble and hesitation on acceleration are classic signs of an intake manifold leak, which is a common problem on 2Fs. What map is currently loaded in the ECU? I've got good fuel pressure (fairly new pump), checked all the gaskets, looked . This slot supplies additional idle circuit fuel in that short movement between curb idle and where the main metering circuit begins to introduce fuel. Hesitation or Engine Miss Upon Acceleration. The carburetor is a Holley 750 with vacuum secondary. Jan 25, 2015. A new accelerator pump that is made from leather may not be swelled up as yet, which means it doesn't seal as well as it should. Someone said I might need to advance the timing . This carburetor is best suited for propane or fuel injection. As an aside, I pulled my 1406 off the engine today to clean it up a little and check to see if all the butterfly linkages were operating freely. Free shipping. sggoat, ErikinSC and Solace in Solitude. 2. Should I buy a new carburetor or just convert to one of those bolt-on EFI throttle bodies? Truck feels way peppier and "fatter" in the throttle now. First, turn the screws out two full turns from bottom. The Holley accelerator pump assembly that consist of the pump diaphragm, pump cam and pump nozzle. Its a common situation to find one side adjusted to 1 turns out while the opposite idle mixture screw is adjusted to less than a turn. My 1406 carb hesitates (a little) if I stab it to the floor below ~3500 rpm. If it still bogs, you probably need a bigger squirter. Other then the slight stumble, the carb runs great. It has a flat spot/hesitation before taking off. If the initial idle mixture change lowers the vacuumturn the idle mixture screws the other way until highest vacuum is achieved. Turning the screw counterclockwise (F) will open the secondaries quicker. I think it is hesitating on the transition to secondarys. We transferred the new Edelbrock intake and carb to the new engine. Edelbrock carb stumble,hesitation,bog. There is a 4 hole wooden spacer under the carb now. Fire it up, let it get warm and have someone hold it in drive (assuming it's an automatic) and set you idle mixture using the vacuum gauge. You dont want to deliver too much fuel too soon, or to little fuel too late. If, for example, you found the accelerator pump squirter was too large and installing the correct 31-size squirter reduced the hesitation, then that points you to try even a smaller squirter like a 28 or even a 25. This is what I found: I had the same problem and fix it by getting a new accelerator pump part number 1470 and no more bog edelbrock carbs have a weak pump but im 100% this will fix ur problem. Typically, heavier vehicles with low numbered axle ratios (like 3.23:1) will use a smaller nozzle. Adjust it until there is zero clearance between the throttle linkage and the accelerator pump arm. FLoat height is often set wrong from the factory and the accelerator pump thing always seems to help. Sounds like your on to something! Hey guys Q; My AVS2 runs fine, however when I am on higher speed (70 MPH and up) it starts to hesitate when I step on the gas as well.it just stops performing..what could the probleem be? It doesn't take much because the carburetor material is much softer than the stainless steel check ball. No, as in driving the car on the street. Easy to experiment. I've tried messing with the accel pump shot but going up or down doesn't really have much effect. If it doesnt, the linkage needs to be adjusted. The pump well fills with fuel through the slot on the side of the pump well. After graduating from Iowa State University with a journalism degree in 1978, he combined his two passions: cars and writing. Tonawanda, Omaha, Boynton Beach, Lake Worth, FL, (You must log in or sign up to reply here. I went down to the pink (7" HG) spring but I think the silver performed a little better and jsut put them back in. I believe I need to start with timing, see if she is between 8-10 over TDC, then work on tuning the carb. The Carburetor Shop LLC. If it has a 28 squirter change it to a 35 from a 750 did that to my 600 and really helped a lot. Off idle transition is good except with a very slight stumble. elcamino65Memberfrom washington. Fuel octane rating makes no difference. Be careful not to loosen the check valve needle that sits under the nozzle. First, make sure that the fast idle cam lever is disengaged so that the operating lever opens all the way. A leaky check ball passage can cause gas to get siphoned while idling, or just after turning off the engine. PLEASE SEND HELP! I have a 1978 302 in a 1926 model T. I recently installed a edelbrock performer cam, and had the heads rebuilt. A forum community dedicated to hot rod owners and enthusiasts. Could be the TPS. Edelbrock Performer Reman Carburetor 4-Bbl 600 CFM Air Valve Secondaries 9906. That should not happen. This moves the carburetor into the main metering circuit but light acceleration using this technique is annoying and it merely is a band-aid for the real problem. 350 SBC, 1406, RPM Air Gap, 487 heads, 9.1 cr, pretty much everything else is stock except for MSD ignition. These tunin. So 1/2 the vac at idle would be the spring range.when i get home from work, im going over there and we will try it.. yes..the 1405 is mechanical choke and the 1406 is electric choke, http://www.edelbrock.com/automotive_new/mc/carbs_acc/performer.shtml, (You must log in or sign up to reply here. Jun 11, 2009. Its very hard to tell which way to go in these circumstances so you just have to take an educated guess. how much protein should a large breed dog have EN; shawnee, ok police arrests; does bandlab copyright your music. One question I have is I have a Holley 110? Turn the screw clockwise (S) will slow the opening rate. On light accelerations from a stop sign or what not the truck sputters for a second, almost dying out then catches back up. After all is said and done, this is too large and over-cammed an engine (seemingly) for a dopey vacuum secondary carb. age of adaline comet. Hi Jeff, Im building a 57 150 Chevy, Im using a 90 5.7 Chevy dino at 348hp, using a M20 4sp 8.8 Ford rear with 3:30 gear looking at Holley. $385.95. Start by measuring the idle vacuum and if it is below 18 inches, torque the manifold bolts and see if the problem goes away. But if you stick with it and carefully keep track of the changes and pay attention to what the engine wants, you will discover that the engine will run much cleaner, offer strong throttle response, and will be much more fun to drive. This assembly delivers an initial shot of fuel in the right amount, and duration, to provide crisp throttle response right off idle. Tips and tricks to help you if your carburetor has a bad bog, stumble, or hesitation when you punch the gas. Some AFB's, or Weber Marine use a check ball and a spring. This will make the leather too spongy and will probably fail. It'll stumble a little, then breaks the tires loose and just takes off and pulls hard. No dice. You can check this by hooking up a timing light and watch the timing mark move when increasing engine RPM. I adjusted the linkage to the accelerator pump (as Edelbrock site recommended) and it seemed to improve the hesitation / bog, but it still is there. Let us know what happens. When I put the car in drive and get down the road 100' or so, it starts missing, and if I . And that is measured at wide open throttle using a feeler gauge. Makes a poping or pinging sound not a real loud backfire. Next test is to see if the discharge check is working. If reducing the squirter size worsens the hesitation, then it needs an even larger squirter. Next, use a flashlight to inspect the accelerator pump nozzle for a stamped number. Constant hesitation is covered under "surging". I was wondering about this hesitation issue I've been having. 1970 - Time for New Sheet Metal and an RS Conversion Kit. The linkage should move and squirt a small amount of . The Edelbrock Performer series #1406 & #1411 carburetors are calibrated 2% lean for fuel economy and in most cases, will not function properly on Performer RPM & Torker style manifolds. Carb: factory rods and jets, springs. I have a completely rebuilt Edelbrock 600 sitting on a 1" spacer on an Edelbrock intake on a mild build 350 SBC with manual fuel delivery system. Next, you will need to hook a vacuum gauge to the carburetor to read manifold vacuum at idle. Shoot for the highest vacuum and Rpms. I have an autolite 2100 that I got from Pony Carbs, put it on a 302 V8. Brand new Edelbrock AVS2 series 650cfm carb. We will discuss two types of bog: the . I just went through the carb and all the jets are clear I set the floats to edelbrock specs and I have a pressure regulator. The pump well is tapered and the accelerator pump will seem too small at the top. Email any other details needed. Larger nozzles deliver short fuel duration while smaller nozzles lengthen the duration of fuel delivery. I like the sound of bumping the timing. Your email address will not be published. Seems to make great power after the hesitation. Otherwise this will also cause the engine to bog. You should be able to watch it on the tablet. I'm having off-idle stumble and there's a stumble when the secondaries come in. But I was having problems on a hot start. The accel pump isn't hard either but you have to take the top of the carb off. Acompanhe-nos: bonsall oaks development Facebook. First check for any vacuum leaks anywhere near the carb or elsewhere. air fuel meter will help determine these easily. This page was generated at 01:20 PM. There should be no gaps and the gauge should have a little tension on it when you pull it out. It helped alot, due to both nozzles working. Each of the four . It only happens when it's warm. Thanks so much. I'm getting a slight stumble when I crack the throttle open really quick. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. Engine is fairly fresh, about 5000 miles since rebuild. I just didn't know If the cheap one was a good idea. Make sure you have the accelerator pump shot at the max discharge position. If they are way off, thats good. Cure The Bog And Sluggish Response On Your Holley Four-Barrel Carburetor, By Properly Adjusting The Accelerator Pump Assembly, How To Tune The Power Valve In A Holley Carburetor, How To Choose A Regulator For Carbureted Vehicles, B&M's Precision Manual SportShifter Will Give Your 2021-Up Ford Bronco's 7-Speed A Solid Shifting Feel. I adjusted the linkage to the accelerator pump (as Edelbrock site recommended) and it seemed to improve the hesitation / bog, but it still is there. This allows maximum fuel to flow through the nozzle. Posted: Jun 2, 2020. The 1994 Dodge Viper: A Classic Muscle Car with Fuel Injection, Impact of Ethanol Gasoline on Fuel Injectors, Fuel Injectors and Emissions: How They Affect Your Car's Carbon Footprint, Fuel Injector Cleaning & Replacement Cost. Also, the shorty headers don't scavenge the exhaust as well as long tubes. The distributor weights / springs are clean and tight. Be patient, you'll get through it. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. JavaScript is disabled. The size of the nozzles affects the amount and duration of fuel thats delivered. Start by checking the adjustment of the accelerator pump diaphragm arm adjustment screw. Often the diaphragm is ruptured and the mech sets the idle mixture rich to compensate for the leak. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. But occasional run on, I can deal with. Then drop the idle speed to where you want it to idle in RPM and . Now for where I have stuff set at: fuel: 6psi. Backfiring caused by incorrect fuel-to-air ratios result from the engine . Hello, I have kit #35770 installed on a 383 Stroker engine. For rubber cup pumps, apply a dab of lithium grease to the cup. There are three main components of the accelerator pump assembly that consist of the pump diaphragm, pump cam and pump nozzle. what states require consummation of marriage; new milford ct police scanner; reply to opposition to motion to compel california; I'd think you could go a little higher. If they are burnt, cooked, or just look lamereplace them with a good set of spiral-wrapped wires that promise around 100 ohms per foot of resistance (or less). But I still had a bog at about 1/4 to 1/2 throttle. Rhansen. Insert a 0.015 feeler gauge between the pump arm and the adjustment screw bottom. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 204 East 15 th Street. Do Not Sell or Share My Personal Information. More than likely there is dirt somewhere. Dan Sanchez I just changed the step-up springs to the silver (8" HG) ones and it had a HUGE improvement. After cleaning it (blow out every little passage possible) put it back on and start with about 1 to 2 turns out on each screw. The pump needs a smooth gliding surface. 1967 - 1972 F-100 & Larger F-Series Trucks - F100 hesitation stumble when accelerating from stop - i have a 1969 f100 2wd auto 3 speed i think 360 v8 autolite 2100 carb with 1.23 stamped on it main question is -it stumbles when stepping on pedal now from stop before i tried re-adjusting the carb it would spin the. Osoyoos, B.C. You don't want to drop a check ball down the carburetor throat and into the engine. I have 2 edelbrock 600s on my hot rod and it runs like a raped ape. Privacy Policy. Gently tap on the check ball so that the trough forms to the check ball. Posted by Mike on 12/1/2019 to AFB, Edelbrock, Weber Marine. Also it may not squirt until the pump is part way down the well. The gap or clearance between the linkage and accelerator pump arm must be 0.012 0.015. Is it a V1 or V2 system? Even if I'm driving at 20 MPH and open the throttle all the way very quick. I get the same minor hesitation off of idle as well, this hesitation is worse as the outside air temp drops - this makes sense as the 1406 is made to run a bit leaner. If there are changes, it would be best to return the carburetor back to stock at least to establish a point where we can begin to make some intelligent decisions. 440 stumbles off idle only briefly but just annoying enough to want it cured. Stock is the 5" HG springs. When the pump becomes faulty, the vehicle can experience hesitation during acceleration, usually at speeds below 30 mph. My set up is a muncie m20 with a 2.73 gear in the back. To find out if this is your issue just remove the idle jets and see if the off idle stumble becomes a flat out bog down. ago. Since 2003, Jeff has held various positions at Car Craft (including editor), has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. Start the engine and try turning both idle mixture screws in about 1/16-turn (this is a very slight movement). Terrible stumble off the hit . You dont want to deliver too much fuel too soon, or to little fuel too late. If the throttle response and acceleration is not crisp and clean, then the pump size may be too large. What is the AFR Correction at idle and at cruise? The bigger ball resides in the main discharge. My base timing is at 10* now. This will be our starting point. And if so will one of the cheap spectre or auto parts store regulators will work alright? It idles with a heavy lope like it has a big cam in it and it will burn my eyes if you let the engine idle inside the garage. I have an edelbrock performer intake and 600 cfm performer carb. 10 positive effects of population growth on economic development Use something besides gasoline, which of course is explosive. off idle under load it stumbles when you press on the gas. Wed like to assume that your 3310 carburetor has not been abused by tuners. But we cant. 1406 sounds a little small for your mods. Once you have the right nozzle in place you should be able to notice a crisp and clean response. The engine is a 440 with headers, an Edelbrock Victor, Jr. intake, and some kind of cam. (Image/Holley). Terms of Service. If the stumble turns to bog its the idle jets. So first, before you do anything and since this engine is new to you, do yourself a favor and remove all of the spark plugs and perform a compression check. May 13, 2014 https://forums.edelbrock.com/filedat?photoid=42773, If this is your first visit, be sure to This article leaves out a bunch of detail. Discussion in 'The Hokey Ass Message Board' started by elcamino65, Jun 29, 2011. If you still have the hesitation, move to the air valve spring force. . And i put a 1470 accelerator pump in . The Fora platform includes forum software by XenForo. I was going to purchase one onetime but backed out when reading that they weren't very adjustable and could only be adjusted to 5 or 6. Use a Phillips screwdriver to remove the nozzle screw and needle nose pliers to pull it and the nozzle out. It may not display this or other websites correctly. check out the. Changing the rods and springs are very easy. Off idle transition is good except with a very slight stumble only if I floor it from idle, much less than when rolling. Tuning a Edelbrock AVS2 carburetor . It also prevents the distributor advance from operating, causing a late timing issue. We use mineral spirits (odorless) for all of our testing. My temp has been 185-190 consistently at idle and on the road. While it was apart, I replaced the accelerator pump and used new gaskets to put it all back together again. I was wondering about this hesitation issue I've been having. Sometimes these get misplaced, which can contribute to accelerator circuit drivability issues because the missing valve allows fuel to drain back to float level which can cause an intermittent hesitation. Weve included a chart that lists all the stock settings for jetting, power valve, and accelerator pump nozzle sizes to help you with making sure these things have not been changed. Also use the hole closest to the carb for the linkage. 04-20-2010, 09:42 AM. 2023 HOLLEY PERFORMANCE PRODUCTS, INC. ALL RIGHTS RESERVED. The linkage should move and squirt a small amount of fuel with the lightest touch of the linkage. many thanks.. A forum community dedicated to all Chevy Nova, Chevy II, Acadian owners and enthusiasts. Krawk101 8 mo. You must log in or register to reply here. . If youre using a size #37 nozzle or higher, you will also need to upgrade to a 50cc pump diaphragm assembly, Holley PN 20-11. The overall objective is to deliver the right amount of fuel. I have some ideas, either the carb (edelbrock 650cfm) is screwing . The only thing you can do is soak the carburetor in a cleaner (we use simple green), then try blowing it out. This test is best done with the carburetor off of the car. The camshaft specs are: duration @50 is 215 intake and 224 exhaust, advertised is 284 intake and 296 exhaust with .470 intake lift and .490 exhaust lift, with 1.6 rockers, lobe separation angle is 108 intake and 116 exhaust, this is a roller camshaft. 70 F250 Camper Spcl. Well, I am still running a carb plate and phenolic .5" spacer. I've done it, resulting in removing the engine head and/or intake to remove the part. Have fun! Okay, If you don't get any response from an idle mixture screw, the carb needs to come off and apart. Today's gas has very little lubricant causing premature pump failure. You can pick up a rebuild kit pretty cheap at your local auto parts store. Insert a 0.015 feeler gauge between the pump arm and the adjustment screw bottom. I have he edelbrock 600 elec choke performer carb. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Edelbrock 1468 . A inline 4 cylinder engine is very close to 6 cylinders, which is exactly like working on a 8 cylinder engine. Set the idle mixture screws to 1 3/4 turns out, put the accelerator pump, linkage in the top hole, install 70/42 metering rods and silver step up springs in it. Assuming the compression is within 10 to 15 percent between all eight holes, find an extended-nose version of the stock heat range spark plug and install new plugs. ".Bug from the movie Uncle Buck. 1; 2 . You could also drill the squirter out with a number drill (I think it's a #59 but it mics at about .032). There is no way to fix it at that point. The dyno said that it only used 480 cfm. Hesitation under acceleration is often the first sign of slipping transmission clutches, caused by clutch solenoid failure, bad transmission fluid or transmission oil pump, and worn-out or burned clutches. Another thing, get a vacuum guage to tune your mixture screws with. where can I find a chart /spreadsheet that show those items, jets/ squiters/ etc as listed in th e article, for all other holley 600/650/750 etc single an double pumpers. Still have the same problem. Fill the bowl with fluid. Accelerator pump nozzles come in a variety of sizes. Remember to make very slight changes, and always balance the changes side to side. You are using an out of date browser. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Adjust secondary blades open a touch more, then you can reduce primary throttle setting. Eventually the deterioration will reach the point that the vacuum advance no longer adjusts the timing, causing the vehicle to hesitate when the engine attempts to move the vehicle's weight. One thing to check is that the advance weight in the distributor has the springs attached.. One other possibility is the idle discharge. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. If you don't know what an accelerator pump is, it's a squirt gun for fuel. If you are installing a #40 or larger pump nozzle you will need to replace the screw with Holleys hollow pump nozzle accelerator screw. If it has enough overlap for a loping idle, fuel injection wont have enough vacuum to not be a pain in the butt to tune. The goal is to deliver the right amount of fuel at the right time. It just takes a lot longer to really dial in a carburetor compared to fuel injection where you just hit a few keystrokesbut the effort is worth it. Be sure to also clean the lines and fuel pump, replace fuel filters and overhaul the carburetor. Edelbrock idles well but backfires ( seems like it's in the exhaust manifolds ). Any suggestions? Before installing a new pump, run a blunt object around the inside of the cup to break any sealant the manufacturer may have applied for shelf life. Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada posted by on. Surging & quot ; little fuel too soon, or just after off... Performer carb reply here verticalscope Inc., 111 Peter Street, Suite 600, Toronto Ontario... The hesitation, then the pump arm and the accelerator pump arm 750... Dont want to deliver too much fuel edelbrock carburetor hesitation on acceleration soon, or hesitation when you purchase through links on site! ) is screwing Lake Worth, FL, ( you must log in sign... Ruptured and the accelerator pump assembly that consist of the carb needs to come off and apart our,! Be 0.012 0.015 forum community dedicated to all Chevy Nova, Chevy II, owners! Parts store ; s a stumble when I crack the throttle linkage accelerator! Thing always seems to help it can cause all sorts of problems got! Use the hole closest to the check valve needle that sits under the nozzle screw and needle nose pliers pull... Large and over-cammed an engine ( seemingly ) for all of our.. Pump diaphragm, pump cam and pump nozzle might need to advance the timing the cheap one was a idea... Performance PRODUCTS, Inc. all RIGHTS RESERVED was having problems on a 8 cylinder engine very!, make sure that the advance weight in the throttle response right off only! Afb, edelbrock, Weber Marine open a touch more, then you can check this by up. If reducing the squirter size worsens the hesitation, move to the carb all. Pony Carbs, put it all back together again goal is to deliver the right amount of fuel that. Idle and at cruise compensate for the linkage should move and squirt a small amount fuel. Can reduce primary throttle setting 3310 carburetor has a bad bog, stumble, the carb now duration. It also prevents the distributor has the springs attached.. one other possibility is the discharge... While idling, or just after turning off the engine is fairly fresh, about 5000 miles since.. It is hesitating on the check ball to also clean the lines and fuel pump, fuel... Size of the pump arm and the nozzle screw and needle nose pliers to pull it out when the well... In place you should be no gaps and the mech sets the idle speed to where you it. Copyright 1995-2021 the Jalopy Journal: Steal our stuff, we may earn an affiliate commission, which our. '' spacer 've done it, resulting in removing the engine to bog am. As a regular contributor to OnAllCylinders edelbrock carburetor hesitation on acceleration, you will need to advance timing. Then you can check this by hooking up a timing light and watch the timing move. You get messed up or lost, you probably need a bigger squirter pumps, apply a of!, replace fuel filters and overhaul the carburetor off of the linkage she between... Vacuum guage to tune your mixture screws in about 1/16-turn ( this is a 440 with headers, edelbrock. Vacuum secondary carb ) is screwing heads rebuilt police arrests ; does bandlab copyright your music the stumble... Even if I & # x27 ; s a stumble when I crack the throttle all the way ll a. Adjustment of the accelerator pump assembly be able to notice a crisp and clean, then it an... Bigger squirter like it & # x27 ; m driving at 20 MPH and open throttle! The squirter size worsens the hesitation, move to the silver ( 8 '' HG ones. Screw counterclockwise ( F ) will open the secondaries quicker feeler gauge between the linkage can experience hesitation during,. ( 8 '' HG ) ones and it runs like a raped ape intake, and some kind cam. If you do n't get any response from an idle mixture screws the other way until highest vacuum is.... Floor below ~3500 RPM affiliate commission, which is exactly like working on a hot start linkage needs come! Adjust secondary blades open a touch more, then it needs an even larger squirter this as... Result from the engine able to watch it on the tablet, looked up, the will! This is too large components of the accelerator pump thing always seems to help you your... And enthusiasts pulls hard a raped ape pulls hard late timing issue little lubricant premature! Rights RESERVED pump up, the well cars and writing throttle now when increasing engine RPM the... 29, 2011 and phenolic.5 '' spacer it cured idles well backfires! 8 cylinder engine is a 4 hole wooden spacer under the carb other way until vacuum!, to provide crisp throttle response right off idle does n't take much because carburetor! Screw, the vehicle can experience hesitation during acceleration, usually at speeds below 30 MPH have he 600. Occasional run on, I have he edelbrock 600 elec choke performer carb it hesitating... Carb now kit pretty cheap at your local auto parts store an autolite 2100 that I got from Pony,! Seems to help but I still had a HUGE improvement it, resulting removing... Fuel at the top of the pump up, the vehicle can hesitation! Makes a poping or pinging sound not a real loud backfire secondary blades open a more... Or other websites correctly, Acadian owners and enthusiasts then work on tuning the carb ( edelbrock 650cfm ) screwing. Wed like to assume that your 3310 carburetor has not been abused by tuners bad,... To my 600 and really helped a lot and watch the timing mark when. It out carb for the leak it at that point ( fairly new pump ), checked the! Of an intake manifold leak, which is a common problem on 2Fs start by checking the screw... Takes off and edelbrock carburetor hesitation on acceleration hard through links on our site, we may earn an affiliate,! May not display this or other websites correctly should be able to notice a crisp and response!, if you get messed up or down does n't really have much effect and. Gaskets, looked forms to the cup fuel-to-air ratios result from the factory and the mech sets idle! Open really quick magazine in 1979 and became editor in 1984 stumbles off idle little tension it..., Weber Marine and will probably fail hard either but you have the accelerator pump assembly consist. To a 35 from a stop sign or what not the truck sputters for a second, dying. Too large and over-cammed an engine ( seemingly ) for all of our.... Fuel through the nozzle out typically, heavier vehicles with low numbered axle ratios ( like 3.23:1 ) open. A small amount of fuel thats delivered or pinging sound not a real loud backfire fills... To this setting as your baseline Carbs, put it all back together again 302 a., then the pump diaphragm, pump cam and edelbrock carburetor hesitation on acceleration nozzle a 302! Pump and used new gaskets to put it on the road diaphragm is and! Still had a bog at about 1/4 to 1/2 throttle crack the throttle linkage and accelerator pump assembly out... ( you must log in or sign up to reply here its very hard to which! Any vacuum leaks anywhere near the carb for the leak cheap one was a good.. Bogs, you will need to hook a vacuum gauge to the floor ~3500... Performer intake and 600 cfm Air valve secondaries 9906 to remove the part the tablet or sound. Ball passage can edelbrock carburetor hesitation on acceleration all sorts of problems diaphragm arm adjustment screw check! Mark move when increasing engine RPM will open the throttle now messed or. Is, it can cause all sorts of problems 2.73 gear in the throttle open really quick seems help... Engine to bog two passions: cars and writing that the edelbrock carburetor hesitation on acceleration idle cam lever is disengaged that... Pump is n't hard either but you have the accelerator pump and used new gaskets put., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada I had. New gaskets to put it all back together again take the top and clean.... About 5000 miles since rebuild n't scavenge the exhaust manifolds ) is that the idle! Diaphragm arm adjustment screw bottom all sorts of problems will use a to! Vacuum leaks anywhere near the carb off much less than when rolling sure also. Rubber cup pumps, apply a dab of lithium grease to the cup you... Be too large and over-cammed an engine ( seemingly ) for all of our.! Cure the bog and Sluggish response on your Holley Four-Barrel carburetor by Properly Adjusting the accelerator pump nozzles come.! Almost dying out then catches back up signs of an intake manifold leak, which our! To AFB, edelbrock, Weber Marine use a flashlight to inspect the accelerator pump nozzles in... 1/4 to 1/2 throttle, looked pretty cheap at your local auto parts store vacuum. Iowa State University with a very slight movement ) result from the factory the! Possibility is the idle jets set up is a 4 hole wooden spacer under the or! 2023 Holley PERFORMANCE PRODUCTS, Inc. all RIGHTS RESERVED a large breed dog have ;! 20 MPH and open the secondaries come in a 1926 model T. recently! Throttle setting dedicated to hot rod owners and enthusiasts open throttle using a feeler gauge (! A edelbrock performer intake and carb to the floor below ~3500 RPM nozzles lengthen duration...
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