Edelbrock carb stumbles off idle. Once I got this dialed in good, I went one stage lean on cruise mode by changing out the metering rods one step. When we bought this car, she had an old tired engine and we did a turn up and replaced the intake and carb, the carb being the Edelbrock 1406. I’m running the stock jets with 70/37 rods and the pink 7” springs. Jul 5, 2008 · I've been having a bog from idle on WOT with my Edlebrock 600CFM 1406 carb every since I installed an Air Gap intake. Nov 13, 2010 · I'm posting this in the hope that it will help any and all who happen to suffer from the same edelbrock off idle bog/stumble which I had once. Apr 4, 2013 · When the bog/stumble occurs post full throttle, a lighter spring on your vacuum diaphragm will allow a quicker opening of the secondaries. Feels like a "flat spot" from a carb with a too small an accelerator pump. Have an annoying off idle stumble you cant seem to get rid of? Here are some tips on what to look for and how to work through the problem. I fixed it by buying a 770 CFM Holley Street Avenger. Being new to this I set off to forums and google to find a straight forward or step by step action and it was If your vehicle is hesitating and stumbling, this video will guide you through a couple of key areas to inspect to ensure your installation was accurate. It took me months to get rid of mine, and several weeks after it showed up again this cold fall season. Apr 3, 2013 · If you loosen the screws on the front of the carb at the base plate 1/4 turn and it doesn't change idle speed, go back in and go 1/4 turn tighter than when you started to see if it drops idle. I've tried to get some support from Edelbrock help line but sat on hold for over an hour before hanging up. Jun 12, 2015 · A carb running rich, as well as a carb running lean, can cause an off-idle stumble or hesitation upon acceleration. Aug 29, 2012 · I had the same stumble off idle with a 700CFM Edelbrock carb. I purchased a 1406 from edelbrock and ran into problems with flooding and acceleration stumble. Motor pulls clean to 6K, haven't tried taking it higher. To narrow it down, tap the roll pin out of the accelerator pump lever by using a small pin punch or a small finish nail. And while cruising at 35 mph in 3rd gear, I could step into it and it would just go, no bog or hesitation and then going, just nice smooth acceleration. I cleared the Jun 24, 2012 · No more off idle hesitation when taking off from a stop light or stop sign. Feb 12, 2012 · I’ve been having problems with this from the start. I know how to adjust the springs/rods/jets and such, I'm just trying to determine whether to go leaner or richer. Lastly, double check the rate of advance in your distributor. Aug 22, 2004 · On my newly rebuilt 460 with a Edelbrock 1406, on a Edelbrock 2166 manifold, off idle under load it stumbles when you press on the gas. I think it is hesitating on the Stroked SB Mopar - 416ci, CNC heads, 11:1 compression, 242/242 @ . It is the bog when you're cruising down the road, punch the throttle, and the car falls on it's face for a few seconds before. Dec 6, 2015 · I've been living with the infamous "Edel-bog" for a while. This is not the off idle lean stumble that can usually be tuned out with pump shot and idle adjustments. AFR varies from 15. Edelbrock 750 Engine pulls right at 9-10” vacuum at idle. We started with replacing the accelerator pump, cause it seems like it had a weak shot, and usually that causes the off idle hesitation or bog. Fairly large camshaft. You back the screws out until it stops raising idle, then go back in about 1/8-1/4 turn. May 29, 2010 · My 1406 carb hesitates (a little) if I stab it to the floor below ~3500 rpm. 8 while this is happening. So we bumped the timing to 36 overall, put the accel pump in the bottom slot (biggest shot), richened up the Mar 6, 2021 · Any Edelbrock gurus out there? I can’t seem to get rid of an off idle/acceleration lean on my 383. It got worse progressively over a couple weeks. Problem has been from day one: Hesitation off idle, pop through carb, surges up and down until rolling. I changed the accelerator pump to the . No dice. Off idle transition is good except with a very slight stumble only if I floor it from idle, much less than when rolling. 050 0. Its a Edelbrock 1406 model. I have to "nurse" the throttle or engage the clutch at a high RPM to prevent this from happening. NOTHING worked. Car ran great except when pulling off from a dead stop under normal acceleration, like at a traffic Mar 25, 2016 · I am not going to act like I know everything because I am very new to carburated motors. Things I tried without any change. 043 nozzle and I’m running the linkage in the bottom hole. I finally found something that works--an Edelbrock #1468 accelerator pump Mar 10, 2013 · Ok, my friend and I have been trying for several days to get the stumble out of the carb in his Roadster. Experiencing rough idle with your Edelbrock carburetor? Learn the top causes and DIY fixes including vacuum leaks, idle mixture adjustment, float settings, and fuel pressure issues. I tried changing jets, spring, rods, timing, moving the accelerator pump arm, etc. 0-9. 570 lift mechanical roller, 1-7/8 headers w/ 3" exhaust. It still stumbles off idle a little Jul 1, 2022 · The system has a hesitation or stumble when pulling out and sometimes a stumble like a miss when at low speed. I ran into a drivability issue last year, the car developed an off idle stumble. ydknvls a8uf 2lb1t 1tk u0c 5t bzo9y 8msusj l14hz ys6