Edelbrock Accelerator Pump Tuning

The Edelbrock accelerator pump doesn't get the right attention and sometimes doesn't get any attention. But its the place to start when tuning an Edelbrock carburetor. I'll show you all the details and a few tips and things you should do. Check it out!



#edelbrock #acceleratorpump #carburetor

[SpeakerKevin]

7:32 A lighter step up spring will give you later fuel enrichment not an earlier one. The step up spring forces the rod in the "most rich" position. Vacuum pulls against the spring and moves the rod to the "most lean" position. The stiffer the spring, the quicker it overcomes vacuum, so a stiffer spring will make enrichment come in sooner.

[darylvoorhees]

You have described the tuning process better than anyone I have seen. I haven't ever dealt with tuning a Carter or Rochester 4B but this process helps immensely. Thanks very much

[pilon]

I was having a problem with a 1406 that would stumble and after watching your video I tried changing the rod to the top setting, made it worse so I put it in the lowest setting and it cured the the problem. Thank for your videos, they are very helpful.

[johnweaver]

Just when I thought you taught me everything about Edelbrock carbs you teach us even more, I'm running 4edelbrock carbs on everything thing from my tow to my 396 Camaro, i definitely appreciate the knowledge I'll bring you a beer 🍺 to class

[felkerforcongress]

Still working on my 86 monte ss Edelbrock Carb... this is very useful info. Thank you for sharing and all the detailed info.

[jeffdeavours]

This is something I've never considered. Thanks for bringing to everyone's attention.

[pjc]

I had been leaning towards EFI but watching your videos has me rethinking it. Thank you for all your information.

[rogerpotempo]

holy puck, my truck came to life with this adjustment, thanks alot👍👍👍

[luishetzler]

I put the linkage on top hole it was on second. My 1967 firebird runs like a champ. Thank fo video🤘

[crazyhorseDOC]

I think an AFR gauge is the answer to carburator tuning. Ive been tuning seat of the pants, decided to install an AFR setup and stop the tune and drive test only to find out its still off.
found out I was close but the AFR got me the best results with less fuel spent.
I do appreciate your videos and have learned alot, and am grateful for your time and excellent advice.

[NateDizz]

Thank You for the pro tips! Very helpful. Top accelerator pump setting is a game changer 🤘

[dannovello]

Thanks for a great explanation of the proper steps, and method/parts to tune the accelerator pump, etc.
I have an issue when the weather/car is hot. I runs ok while driving, but has died on me while starting to take off from a stop. (Not good while crossing two lane hwy) I have to kind of drive it "two footed", giving gas while easing off the brake.
So started to think it's not getting enough fuel, and need to clean or adjust the accelerator pump.
Thanks again for your videos!

[matthewgorgoglione]

Hello I've worked on alot of many different carborators as a young man till now as 33 years as a mechanic of all types of vehicles, and just wanted to say that I've noticed something really cool about the Edelbrock carburetors, and that is the squertors, I've decided to just find out what the carb will do if I simply just beveled the tip of the squerter tips to cone fuel instead of drip or stream fuel in the carb, going for power efficiency and mpg's, this helps alot to mist fuel in motor like a cone tbi fuel injection unit...who would've thought... New breakthrough in carborators....from a regular automechanic...🏁😎🔧🌎✨🛸

[VinoRatRodbuilds]

I will bring a apple next week to class! Thanks for sharing 😁

[orangesun]

I went to a lower setting. I went to the hole furthest from the pivot point, and what a difference! There’s no more hesitation.

[rafaelgamboa]

Thanks good video. I have lot work to do.

[WrecklessEnterainment]

Ugh this is the exact video I’m looking for. I’m tuning an AVS2 and I have it on the strongest pump shot and the air door cranked super tight and can’t get it to not bog. Definitely needs some accelerator pump work.

[DeadRatsU]

This deserves way more than 65 likes. Awesome

[vela]

I'm working through a flat spot on a friends car. The AFR gauge is great because you can see the brief lean spot right at throttle tip in.

[stacetriebwasser]

Great info on Edelbrock ... seen lots on Holley's but not a lot on these. Would like to see stuff on two barrels also!