In this video, we explain the most common fixes for a off idle stumble on your Holley Carburetor.
Пікірлер: 36
@bertramlrezenet93119 ай бұрын
Hello Randy, another great video. I thought I would mention, we called the umbrella type inlet check valve is an elastomer valve. Keep up the good work!
@holleycarbshowtosadvice40y909 ай бұрын
Absolutely.
@HeadFlowInc9 ай бұрын
Acc. Pump adjustment should be .015”-.018” at WOT to avoid damage to the pump diaphragm. 👍
@holleycarbshowtosadvice40y909 ай бұрын
Thanks for watching
@HeadFlowInc8 ай бұрын
@@holleycarbshowtosadvice40y90 Accelerator pump adjustment shared years ago on the PY forums by Tom Vaught long time Holley Engineer. 👍
@TheSaxon259 ай бұрын
Lets go Randy! Great video as always. I'm passing on the knowledge to a couple young bloods to get their rigs down the road. Always pay it forward. Thanks for the knowledge 🍻🍻
@holleycarbshowtosadvice40y909 ай бұрын
Thanks Ssxon I appreciate it. Take care brother
@Adrenacyde9 ай бұрын
Glad to see a new video out Randy and Mr' Cameraman. I just picked up a new to me 850 CFM Holley 4781. Was planning on using AED 6580 metering blocks. Do I need two, or just one for the Primary side?
@holleycarbshowtosadvice40y909 ай бұрын
AED makes great products, this comes down to personal preference how far you won't to modify it, I believe you could make good either way. I do believe the primaries are most important. Hope this helps.
@327365hp4 ай бұрын
Good stuff Randy, thank you!
@holleycarbshowtosadvice40y904 ай бұрын
Thanks
@danielesilvaggi9 ай бұрын
Thank you for the videos.
@holleycarbshowtosadvice40y909 ай бұрын
Glad to help.
@oldmanintheshopbuiltnotbou87269 ай бұрын
great info
@holleycarbshowtosadvice40y909 ай бұрын
Thanks .
@Bereft7779 ай бұрын
measuring the clearance on that pump check was something else. i confirmed it sealing by filling it up with fuel and ensuring zero bypass ..on the discharge check too
@holleycarbshowtosadvice40y909 ай бұрын
Jack you are right on point and well thought out. Take care.
@L72Belair12 күн бұрын
thanks
@holleycarbshowtosadvice40y9011 күн бұрын
Your welcome
@direct9989 ай бұрын
The shot from the shooters could also put too much fuel too quickly causing the engine to stall . Great video .
@holleycarbshowtosadvice40y909 ай бұрын
Thanks for watching
@LENSO_CHEVY_LT19 ай бұрын
Excellent vid once again. Have you got a vid on pump cam selection? I generally start with the red cam but sometimes when changing them its hard to tell the difference what with so many other things happening at once
@holleycarbshowtosadvice40y909 ай бұрын
I know what your saying, aggressiveness and dwell time can get confusing. We'll do a video.
@RobertSiwik19689 ай бұрын
Great video!
@holleycarbshowtosadvice40y909 ай бұрын
Thank you
@kfacpa4 ай бұрын
Great video, thank you. I have the opposite issue... an unexpected acceleration just as I'm pushing down on the accelerator... and with 640 ft/lb torque, it's kinda neck snapping.... any thoughts?
@holleycarbshowtosadvice40y904 ай бұрын
Just don't mash the gas on that beast. Lol
@kfacpa4 ай бұрын
@@holleycarbshowtosadvice40y90 🤣
@Youtubecensoredmyusername2 ай бұрын
@@holleycarbshowtosadvice40y90😮
@theredwedge94469 ай бұрын
Randy, I have a Holley 750 vacuum secondary with an HP body, 82750SA. The carb runs great. However, I get an initial AFR lean spike and quick bog at the onset of the secondaries opening. Once they open, the car hauls. It came with the plain spring. Going to a stiffer spring makes the bog worse an last longer. Going to a lighter spring doesn’t help. Idle, transition, accelerator circuit, primary circuit, and WOT are perfect. Any ideas?
@holleycarbshowtosadvice40y909 ай бұрын
Things that can cause these symtoms, secondary coming in to fast or jetting to lean, float level to low . Check your primary pump cam, see if its a pink cam the pink cam carries a longer duration pump shot may help.
@nwmod399 ай бұрын
I would start with making sure your float level is where it should be and then upping the secondary jetting a bit since there is no secondary accel pump nozzle. Pending on how far open the primary blades are and what your idle is set at.... you could possibly afford to close your primary blades a touch and then open your secondary blades a touch to get more into the secondary transfer slots.
@Baker5049 ай бұрын
Good video
@holleycarbshowtosadvice40y909 ай бұрын
Thanks
@robertjohnson-45413 күн бұрын
A little constructive criticism. You don’t show how to adjust it so you’ve just unincluded half your audience. Also since so many make this mistake you must ALWAYS make sure that the lighting and angle are good so that people can see exactly what you are doing.
@holleycarbshowtosadvice40y9013 күн бұрын
We do the best we can, and try to improve. If you have a problem you can always leave me a message. Other than that if your not happy there's always other channels out there. Hope this helps