Question About Edelbrock Quadrajet Carb
Thread Starter
Racer
Joined: Sep 2001
Posts: 407
Likes: 10
From: Maryville Tennessee
Question About Edelbrock Quadrajet Carb
Hi,
I have a '75 with the Edelbrock aftermarket Quadrajet. Unlike on the original quadrajets, the idle mixture screws on the front of the unit do not have slots in them and so I can't adjust them with a regular flat head screwdriver. Instead, it has some type of male style tab that looks like it requires some type of specific female adjustment tool. Does anyone know where I can get one and what tool to ask for? I've tried long and slim needle nose pliers but I still can't grab the tips. Thank you!
Rob
I have a '75 with the Edelbrock aftermarket Quadrajet. Unlike on the original quadrajets, the idle mixture screws on the front of the unit do not have slots in them and so I can't adjust them with a regular flat head screwdriver. Instead, it has some type of male style tab that looks like it requires some type of specific female adjustment tool. Does anyone know where I can get one and what tool to ask for? I've tried long and slim needle nose pliers but I still can't grab the tips. Thank you!
Rob
Race Director
Joined: Aug 2000
Posts: 18,475
Likes: 3
From: Quincy IL
you can buy these in the tool section at some auto parts stores, mine was made by LISLE, I believe. it has a screwdriver-like handle with a 12 inch or so spring rod hooked to it, and comes with 4 fittings or adapters. it makes adjusting the mix screws a breeze and keeps hands away from the belts,etc.
Instructor
Joined: Jan 2005
Posts: 235
Likes: 1
From: West Seneca New York
Go to AutoZone or one of those places and get a carb. adjusting tool from their tool section. It's has a long flexible shaft w/ 4 or 5 different bits in it. I believe it should be the "D" or ovate shaped bit.
Darryl
Gary beat me to it.
Darryl
Gary beat me to it.
Team Owner
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
what # carb do you have? pics? I have a 1901 and I don't think it has the same type of adjusters. I thought I just used a regular screwdriver t oadjust the idle mix. I did have to buy torx tools to take out all the screws tho.
Thread Starter
Racer
Joined: Sep 2001
Posts: 407
Likes: 10
From: Maryville Tennessee
Thanks a lot...I pass by an Autozone on the way to work so I'll look for one. PRNDL, my model number is either a 1903 or 4, but from the pictures it looks like the 1901 does have screwdriver slots. I'm not sure why they make them differently. Thanks again!
Rob
Rob
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Safety Car
Joined: Mar 2005
Posts: 3,503
Likes: 2
From: Raleigh NC
I have the 1903 too and the tool.
The big question is how to properly adjust idle mixture.
I have read the directions and they don't really make sense--it says to keep turning the screws out until the rpm's don't increase any more.
What?! 10 turns or so?
If anybody can clear this up it'd make my day.
The big question is how to properly adjust idle mixture.
I have read the directions and they don't really make sense--it says to keep turning the screws out until the rpm's don't increase any more.
What?! 10 turns or so?
If anybody can clear this up it'd make my day.
Race Director
Joined: Aug 2000
Posts: 18,475
Likes: 3
From: Quincy IL
Originally Posted by feb18blacksunday
Gary what cfm's does the e-brock carb run and what kind of gas mileage do you get?
