Carb baseline?
Thread Starter
|
Senior User
Joined: Mar 2015
Posts: 206
Likes: 0
From: Eastern NC
Carb baseline?
Got my rebuild kit in from Mike's and went through the carb.
Looks like a really simple piece but I'm not sure how to go about getting it just right. It cranks and idles fine. And when I blip the throttle, it revs like it should. Basically, it's running pretty good, but I want to be sure it's correct.
Thanks!
Looks like a really simple piece but I'm not sure how to go about getting it just right. It cranks and idles fine. And when I blip the throttle, it revs like it should. Basically, it's running pretty good, but I want to be sure it's correct.
Thanks!
Hotshot
Joined: Feb 2015
Posts: 17,559
Likes: 1,081
From: Central Delaware
I was taught the basic way to adjust a carb is: Turn the jet screw in until the engine stumbles. Counting the turns, back it out until the engine stumbles again. Turn it back in 1/2 of that number of turns.
Short of using a flow meter, that's about it.
Short of using a flow meter, that's about it.
Thread Starter
|
Senior User
Joined: Mar 2015
Posts: 206
Likes: 0
From: Eastern NC
Thanks for the replies.
How do you go about setting the throttle valves? Should they be all the way closed when adjusting the idle valves?
I need to check ignition timing while I'm at it. Hope the light works with 6v..
How do you go about setting the throttle valves? Should they be all the way closed when adjusting the idle valves?
I need to check ignition timing while I'm at it. Hope the light works with 6v..
Lead Driver
Joined: Jul 2011
Posts: 6,599
Likes: 34
From: Rockingham, VA
Try using a battery charger for the supply.
Hotshot
Joined: Feb 2015
Posts: 17,559
Likes: 1,081
From: Central Delaware
If you can locate an older style timing light you won't need any outside power. They were very simple and used the pulse from the distributer to light the bulb. One wire clamps on the plug and the other inside the plug wire.
Trending Topics
Thread Starter
|
Senior User
Joined: Mar 2015
Posts: 206
Likes: 0
From: Eastern NC
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Logistics Pro
Joined: Nov 2006
Posts: 3,679
Likes: 370
From: Fallon,NV & Bainbridge OH
Throttle valves aka primary butterflies, are adjusted by the idle speed screw and should be set to approximate idle speed before adjusting idle mixture screws and readjusted as needed while adjusting idle mixture screws.
Last edited by truckeemtnfords; Apr 30, 2015 at 08:03 PM. Reason: spelling
Thread
Thread Starter
Forum
Replies
Last Post
lud04X
Fuel Injection, Carburetion & Fuel System
2
Jul 9, 2007 05:21 AM
SGTFA
Fuel Injection, Carburetion & Fuel System
2
Apr 12, 2003 04:41 PM
desperado_18_2000
Fuel Injection, Carburetion & Fuel System
2
Nov 11, 2002 12:26 PM
bryan_johnson
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
2
Jul 27, 2002 12:12 AM