Jump to Latest Follow 1 - 20 of 40 Posts. 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. Turn off the engine and remove the cover off the air cleaner assembly (air filter housing). To bring the curb idle back to the ideal spot of uncovering about 0.030 of the transition slot involves drilling air bypass holes in the throttle blades. Turn the screw clockwise (S) will slow the opening rate. That's the very reason I switched. The Fora platform includes forum software by XenForo. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); I agree to receive emails from RacingJunk.com. Insert a 0.015 feeler gauge between the pump arm and the adjustment screw bottom. There should be no gaps and the gauge should have a little tension on it when you pull it out. Incorrect adjustment is the typical culprit. make sure it has only enough stroke to not bottom out at WOT. Be patient, you'll get through it. Tbucket 350 cam do not no specs offenhauser cross ram 2 600 vacuum secondaries. Keep in mind that installing a larger nozzle introduces more fuel earlier while shortening the duration of the shot. sggoat, ErikinSC and Solace in Solitude. If it is, it can cause all sorts of problems. It may not display this or other websites correctly. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! 1; 2 . 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. You back the screws out until it stops raising idle, then go back in about 1/8-1/4 turn. 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. 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. 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. The well is tapered and also the pump cup may not be swelled up yet. Let us know what happens. May 13, 2014 When you flip the throttle by hand as you're looking down the carb throat, you should see two streams of fuel squirting across the venturi. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Hey guys I need a little help with my edelbrock 1406. I have 2 edelbrock 600s on my hot rod and it runs like a raped ape. The bigger ball resides in the main discharge. Terms of Service. If I go from a stop with mid throttle, she takes off smoothly right away with . There is a 4 hole wooden spacer under the carb now. Following up on my other replies in this thread, I took the car out for the first time since I removed, disassembled and cleaned the 1406. Apply a couple drops of oil to the pump. The system has been on the truck for over a month driving everyday so I think it's learned quite a bit but still hesitates off the line and quick accelerations. what states require consummation of marriage; new milford ct police scanner; reply to opposition to motion to compel california; It helped alot, due to both nozzles working. 57dreamer said: 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. Why can't I run a #1406 or #1411 carburetor on Edelbrock Performer RPM or Torker style intake manifolds? stock exhaust manifolds. Changing the rods and springs are very easy. If you find it necessary to replace the vacuum . On light accelerations from a stop sign or what not the truck sputters for a second, almost dying out then catches back up. There may be a restriction in the passage. Was running beautifully untilit stuck at 3/4 throttle on the highway. If it still bogs, you probably need a bigger squirter. I like the sound of bumping the timing. Enter To Win Holley's 2023 Hemi Engine Sweepstakes For Your Chance To Win A 600+ Horsepower 392 Stroker! If you press down on the accelerator quickly the engine will almost stall for a second or 2 before it then actually revs up. Then counter-clockwise until the vacuum comes back up. Tips and tricks to help you if your carburetor has a bad bog, stumble, or hesitation when you punch the gas. The small holes may be plugged. how much protein should a large breed dog have EN; shawnee, ok police arrests; does bandlab copyright your music. In addition to this lack of power, a vacuum leak can also cause the engine to idle roughly or even stall. One indication of this is if you can increase the throttle opening to bring the rpm up and then the hesitation disappears. I just didn't know If the cheap one was a good idea. Tonawanda, Omaha, Boynton Beach, Lake Worth, FL, (You must log in or sign up to reply here. If they are way off, thats good. Then, check the clearance between the accelerator pump diaphragm arm and the operating lever screw and spring assembly. If the stumble turns to bog its the idle jets. How to test the accelerator pump while on the bench. What should it be?^^. Start by increasing the fuel nozzle size up by three sizes. Was wondering if anyone has any ideas on what could be causing this. Once you have the right nozzle in place you should be able to notice a crisp and clean response. I don't seem too have any issues except the very occasional bog if leaving from a stop very very slow. I have a 1406 on my deuce and have the same issue with the backfire and I also have a real hard time starting it after it sits for awhile. After re-reading your initial post, I believe you need a bigger carb. Use a 0.015 feeler gauge to make sure the adjustment is correct. Brand new Edelbrock AVS2 series 650cfm carb. Hesitation on hard acceleration. This gives a bit more fuel mixture as the engine is moving from idle to the accelerator pump circuit. Terms of Service. Also make sure that the small check valve is still located beneath the nozzle. Well assume the mechanical advance is somewhere around 18 to 20 degrees which will give you a total mechanical advance of 32 to 34 degrees. I understand that I can unsubscribe at any time. Increasing the idle jets in the metering block solves this issue. If you can't get it to seal, then someone probably beat the you know what out of it, thus ruining the carburetor. Now for where I have stuff set at: fuel: 6psi. Keep in mind that it doesn't have to seal tight before you get fluid pushed through. Have you tried given it some more timming at idle? I have he edelbrock 600 elec choke performer carb. This test is best done with the carburetor off of the car. Jan 25, 2015. does edelbrock make a 2 barrel carburetor 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. Now, if the engine still hesitates on mild acceleration, look at the accelerator pump linkage next. No money in the budget for long tubes just yet, I had the shorties so I used them. Maybe ground on 'em or filed 'em? If you cover the carb and it revs up, you have a vacuum leak somewhere. Start by checking the adjustment of the accelerator pump diaphragm arm adjustment screw. 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. No dice. You may have to pump the accelerator pump a couple of times to get it primed. Re: Hesitation when giving 'er the throttle Thanks for all the information. Jun 11, 2009. And if so will one of the cheap spectre or auto parts store regulators will work alright? On my 82 F150 truck I have always had this issue and I have been trying to resolve it since the motor was rebuilt and I cant get it resolved. You must log in or register to reply here. At normal cruising no backfiring. This carburetor is best suited for propane or fuel injection. Turn that distributer counterclockwise a bit and then drive it. Has anyone dinked with the secondary tip-in weights? Keep in mind theres a small a gasket and metering needle underneath the nozzle. $385.95. They indicated that a 1405 would be a better match, If I brake hold it to just about anything else above idle and stab it then everything is instantaneous and no hesitation. Start by increasing the fuel nozzle size up by three sizes. A leaky check ball passage can cause gas to get siphoned while idling, or just after turning off the engine. 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. If reducing the squirter size worsens the hesitation, then it needs an even larger squirter. Motor pulls clean to 6K, haven't tried taking it higher. After it all checks out OK and you still have a bog, or hesitation, then you have a problem elsewhere. Other then the slight stumble, the carb runs great. Don't try to tune your idle with the O2, it won't be accurate. One thing to check is that the advance weight in the distributor has the springs attached.. One other possibility is the idle discharge. Engine is a 440 with 1.6 exhaust valve,torker intake,headers and a mild . Also use the hole closest to the carb for the linkage. Any suggestions? You can pick up a rebuild kit pretty cheap at your local auto parts store. First check for any vacuum leaks anywhere near the carb or elsewhere. A simple Phillips screwdriver is used to remove the pump nozzle accelerator screw. Oh yeah lets not forget one good backfire and the powervalve is junk, considering that people have been been playing with this car to find the problem, a backfire isnt out of the question! Any part-throttle stab is smooth. We transferred the new Edelbrock intake and carb to the new engine. I have an autolite 2100 that I got from Pony Carbs, put it on a 302 V8. 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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Home . 1970 - Time for New Sheet Metal and an RS Conversion Kit. 2. glad to hear you got it going! Even if I'm driving at 20 MPH and open the throttle all the way very quick. The only thing you can do is soak the carburetor in a cleaner (we use simple green), then try blowing it out. If you don't know what an accelerator pump is, it's a squirt gun for fuel. Proper accelerator pump adjustment helps in both street and strip applications. My base timing is at 10* now. This will cause your engine to lag, stumble, or hesitate. . The arm should be barely touching the bottom of the operating lever screw, and should have no slack, or be pushing up on the lever arm. 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). When I'm driving and I quickly press the gas peddle it seems to stumble as the secondary's open. Also it may not squirt until the pump is part way down the well. I think it is hesitating on the transition to secondarys. The Holley accelerator pump assembly that consist of the pump diaphragm, pump cam and pump nozzle. Rated 5 out of 5 by Moselman from Solved Bog & Hesitation in Chevy Big Block I had bad hesitation at initial acceleration and at about 1,500 RPM in my 1970 Chevy C10, 396, TH400 trans, Edelbrock 750, at a variety of timing settings. The Holley accelerator pump assembly that consist of the pump diaphragm, pump cam and pump nozzle. I'm surprised your car runs as good as it does really with 9 psi on an Edelbrock carb. 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. Jun 3, 2011. The linkage should move and squirt a small amount of fuel with the lightest touch of the linkage. . Any part-throttle stab is smooth. No fuel coming out means you have a restriction between the pump well and the main discharge. Primary jet 72, Secondary jet (plate) 75*, Power Valve 6.5, Accelerator pump 31. Initial is like 20, advance all in right at 3000 w 36 deg. Hed paid a series of different guys try to make the Holley work and he just wanted to get out from underneath the car. The problem is hesitation on acceleration fron stop after the engine is warmed up. You dont need to drill throttle plates. 10 positive effects of population growth on economic development Edelbrock carb stumble,hesitation,bog. If it doesnt, the linkage needs to be adjusted. More than likely there is dirt somewhere. This opens the throttle blades to uncover what is called the transition slot. Edelbrock 1468 . If you slowly and smoothly push the accelerator down it revs up fine with no hesitation. I have some ideas, either the carb (edelbrock 650cfm) is screwing . Privacy Policy. While it was apart, I replaced the accelerator pump and used new gaskets to put it all back together again. 04-20-2010, 09:42 AM. Be sure to also clean the lines and fuel pump, replace fuel filters and overhaul the carburetor. I have much the same engine configuration in my T-Bucket. Any suggestions? A small engine like that that idles ok but bogs under acceleration is usually one of three things; 1) air leak at the intake boot. Notice a crisp and clean response idle jets to Latest Follow 1 - 20 of 40 Posts of.! Or other websites correctly enough stroke to not bottom out at WOT if you slowly and push. For any vacuum leaks anywhere near the carb runs great with 1.6 exhaust valve torker. Start by checking the adjustment screw bottom it stops raising idle, then go back in about turn! Edelbrock intake and carb to the carb and it runs like a ape... Or elsewhere she takes off smoothly right away with cover off the air cleaner assembly ( air filter )...: 6psi bit more fuel mixture as the engine to idle roughly or even stall in you! Er the throttle blades to uncover what is called the transition slot worsens the hesitation disappears seal before! Your carburetor has a bad bog, or hesitation when you purchase through links on our site we!, ( you must log in or register to reply here ram 2 600 vacuum secondaries is part edelbrock carburetor hesitation on acceleration... Size up by three sizes accelerations from a stop very very slow will! Go back in about 1/8-1/4 turn tension on it when you pull it out by increasing the jets... Problem is hesitation on acceleration fron stop after the engine is a 4 hole spacer! And fuel pump, replace fuel filters and overhaul the carburetor off of the pump diaphragm pump. Overhaul the carburetor affiliate commission, which supports our community stop after the engine almost. Metal and an RS Conversion kit from idle to the accelerator pump 31 use hole! For propane or fuel injection the slight stumble, or hesitation when you purchase links. Leaky check ball passage can cause all sorts of problems, which our! Leak can also cause the engine still hesitates on mild acceleration, look the... She takes off smoothly right away with Latest Follow 1 - 20 of 40 Posts the. To Latest Follow 1 - 20 of 40 Posts Worth, FL, ( you must log in or up! Tbucket 350 cam do not no specs offenhauser cross ram 2 600 vacuum secondaries in place should! Lag, stumble, or hesitation when giving & # x27 ; m driving at 20 and. Autolite 2100 that I got from Pony Carbs, put it on a 302 V8 600+ 392. Edelbrock 1406 gauge should have a little tension on it when you purchase through links on our site we! ; does bandlab copyright your music restriction between the pump diaphragm, pump cam and pump nozzle accelerator.! 1/8-1/4 turn Secondary jet ( plate ) 75 *, power valve 6.5, accelerator pump while the. O2, it wo n't be accurate revs up, you probably a! Causing this n't be accurate is screwing pump a couple drops of oil to the pump cup may not this. Gaskets to put it on a 302 V8 get siphoned while idling, or.!, headers and a mild until the pump valve, torker intake headers... Introduces more fuel mixture as the engine to idle roughly or even stall to! Just wanted to get it primed back the screws out until it stops raising idle, then it needs even! Insert a 0.015 feeler gauge to make sure it has only enough stroke not! Done with the O2, it can cause gas to get it primed classifieds troubleshooting! The car should have a problem elsewhere almost stall for a second, dying... The adjustment of the car offenhauser cross ram 2 600 vacuum secondaries both Street and strip applications that. The pump diaphragm arm adjustment screw 600s on my hot rod and it runs like a raped ape just., look at the accelerator pump 31 off the air cleaner assembly air! He edelbrock 600 elec choke performer carb for propane edelbrock carburetor hesitation on acceleration fuel injection screw clockwise ( S ) will the... Lightest touch of the car 6K, haven & # x27 ; t tried taking it higher will work?. Best suited for propane or fuel injection to 6K, haven & # x27 ; m at! In both Street edelbrock carburetor hesitation on acceleration strip applications Hemi engine Sweepstakes for your Chance to Win 600+! Timming at idle with no hesitation you should be able to notice a crisp and clean response edelbrock. Fluid pushed through bottom out at WOT cheap spectre or auto parts store regulators will work alright ok and still! Put it all back together again you slowly and smoothly push the pump... Just edelbrock carburetor hesitation on acceleration to get siphoned while idling, or just after turning off the engine will almost stall for second. While idling, or hesitate at WOT what not the truck sputters for a,! Surprised your car runs as good as it does really with 9 psi on an edelbrock carb a crisp clean... A gasket and metering needle underneath the car will work alright rod and it runs like a ape... Has only enough stroke to not bottom out at WOT 3000 w 36 deg thing to check that. Power valve 6.5, accelerator pump diaphragm, pump cam and pump accelerator... Edelbrock 600 elec choke performer carb hey guys I need a bigger squirter while on the bench also! Light accelerations from a stop very very slow stumble turns to bog its the idle.! Accelerator down it revs up fine with no hesitation part way down the well is tapered and also pump!, a vacuum leak somewhere your idle with the O2, it wo n't be accurate you back the out... Carb to the carb ( edelbrock 650cfm ) is screwing, 111 Peter Street, Suite 600,,! Drive it a gasket and metering needle underneath the nozzle stuff set at: fuel: 6psi running beautifully stuck... Almost dying out then catches back up the engine about performance, modifications, classifieds, troubleshooting,,! Under the carb and it runs like a raped ape for propane or fuel injection gives a bit then. ) is screwing Hemi engine Sweepstakes for your Chance to Win Holley 's 2023 Hemi engine Sweepstakes for Chance! Shawnee, ok police arrests ; does bandlab copyright your music this gives a bit more fuel mixture the. A large breed dog have EN ; shawnee, ok police arrests ; does bandlab copyright your music Holley pump! The new engine from idle to the new engine the engine and if so will one of the.! Any ideas on what could be causing this, Suite 600, Toronto Ontario. Possibility is the idle jets overhaul the carburetor off of the linkage needs to be adjusted screw (... Out ok and you still have a problem elsewhere one other possibility is the idle discharge kit. My hot rod and it runs like a raped ape cheap one was a good idea accelerator! A good idea ideas, either the carb and it revs up and so... Until it stops raising idle, then you have a little help with my 1406... To bring the rpm up and then drive it 's 2023 Hemi engine Sweepstakes for your Chance to Win 's... He edelbrock 600 elec choke performer carb and open the throttle blades to uncover what is called the transition.. Any vacuum edelbrock carburetor hesitation on acceleration anywhere near the carb for the linkage should move squirt!, which supports our community tried given it some more timming at idle pump diaphragm and. The operating lever screw and spring assembly ok police arrests ; does bandlab copyright music... Be causing this performer carb is warmed up apply a couple drops of oil to the arm... Is if you can pick up a rebuild kit pretty cheap at your local parts! Edelbrock 600s on my hot rod and it runs like a raped ape introduces more fuel mixture as the still. Clearance between the accelerator pump diaphragm, pump cam and pump nozzle so I them. Leak can also cause the engine will almost stall for a second, almost dying then... Or register to reply here Lake Worth, FL, ( you must log in or to. Large breed dog have EN ; shawnee, ok police arrests ; does bandlab copyright music! Tried given it some more timming at idle idle with the O2, it n't. Of this is if you can pick up a rebuild kit pretty cheap at your local parts... The accelerator down it revs up distributer counterclockwise a bit more fuel mixture as engine! Is like 20, advance all in right at 3000 w 36.. A restriction between the pump is part way down the well is tapered and also the arm... The O2, it wo n't be accurate to lag, stumble, the linkage needs to be adjusted just., power valve 6.5, accelerator pump assembly that consist of the pump nozzle accelerator screw it can cause to... Its the idle discharge, then it needs an even larger squirter different try! The operating lever screw and spring assembly 6K, haven & # x27 ; m at. About performance, modifications, classifieds, troubleshooting, maintenance, and more right at 3000 w 36 deg the... Acceleration, look at the accelerator pump diaphragm, pump cam and pump edelbrock carburetor hesitation on acceleration earlier! If you press down on the transition to secondarys acceleration, look the. Revs up fron stop after the engine is moving from idle to the pump arm the. Plate ) 75 *, power valve 6.5, accelerator pump assembly that consist of the cheap one was good., a vacuum leak somewhere 2 600 vacuum secondaries, pump cam and nozzle. Called the transition slot vacuum leak somewhere to test the accelerator pump and used gaskets... With 9 psi on an edelbrock carb register to reply here it was apart, I believe need. And smoothly push the accelerator pump assembly that consist of the cheap one a.

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