Quadrajet Idle Mixture Question
Thread Starter
Instructor
Joined: Jun 2005
Posts: 140
Likes: 0
From: Bovingdon Hertfordshire
Quadrajet Idle Mixture Question
Afternoon all,
I've recently noticed that one of the idle mixture screws on my Carb. is bent. (1974)
Any idea where I can get new ones from (preferably someone with a web site and willing to send overseas).
Also - I see the standard setup is to bottom them and wind out each by four turns, and tune from there.
On the Rochester, which way do you wind to make it richer / leaner ?
I'm guessing its an air bleed so that winding it further out leans it off ?
Thanks,
Jeremy.
I've recently noticed that one of the idle mixture screws on my Carb. is bent. (1974)
Any idea where I can get new ones from (preferably someone with a web site and willing to send overseas).
Also - I see the standard setup is to bottom them and wind out each by four turns, and tune from there.
On the Rochester, which way do you wind to make it richer / leaner ?
I'm guessing its an air bleed so that winding it further out leans it off ?
Thanks,
Jeremy.
Safety Car
Joined: Dec 2004
Posts: 4,071
Likes: 0
From: San Diego CA
Edelbrock should be able to help you out. The 190x series were exact clones of q-jets and the screws from a 1901 or 1902 should fit your carb. Check summitracing.com and search by vendor and see if you can find a part number for it.
Le Mans Master
Joined: May 2005
Posts: 7,344
Likes: 2,272
From: Central Maryland
Originally Posted by langlj00
Afternoon all,
I've recently noticed that one of the idle mixture screws on my Carb. is bent. (1974)
Any idea where I can get new ones from (preferably someone with a web site and willing to send overseas).
Also - I see the standard setup is to bottom them and wind out each by four turns, and tune from there.
On the Rochester, which way do you wind to make it richer / leaner ?
I'm guessing its an air bleed so that winding it further out leans it off ?
Thanks,
Jeremy.
I've recently noticed that one of the idle mixture screws on my Carb. is bent. (1974)
Any idea where I can get new ones from (preferably someone with a web site and willing to send overseas).
Also - I see the standard setup is to bottom them and wind out each by four turns, and tune from there.
On the Rochester, which way do you wind to make it richer / leaner ?
I'm guessing its an air bleed so that winding it further out leans it off ?
Thanks,
Jeremy.
Be well,
SJW
Melting Slicks
Joined: Oct 2005
Posts: 2,056
Likes: 8
From: Redruth Cornwall
Originally Posted by langlj00
Afternoon all,
I've recently noticed that one of the idle mixture screws on my Carb. is bent. (1974)
Any idea where I can get new ones from (preferably someone with a web site and willing to send overseas).
Also - I see the standard setup is to bottom them and wind out each by four turns, and tune from there.
On the Rochester, which way do you wind to make it richer / leaner ?
I'm guessing its an air bleed so that winding it further out leans it off ?
Thanks,
Jeremy.
I've recently noticed that one of the idle mixture screws on my Carb. is bent. (1974)
Any idea where I can get new ones from (preferably someone with a web site and willing to send overseas).
Also - I see the standard setup is to bottom them and wind out each by four turns, and tune from there.
On the Rochester, which way do you wind to make it richer / leaner ?
I'm guessing its an air bleed so that winding it further out leans it off ?
Thanks,
Jeremy.
Slowly bottom the screws then back off 1 and 1/2 turns and work from there.
Have you tried any of the UK suppliers? For a small part like that it would probably be quicker and just as cheap to get it in the UK.
Melting Slicks
Joined: Mar 2005
Posts: 2,838
Likes: 10
From: Austin TX
Thread Starter
Instructor
Joined: Jun 2005
Posts: 140
Likes: 0
From: Bovingdon Hertfordshire
Thanks Guys,
Jotto - the manual says wind it out 4 turns and start from there ?
1.5 seems a bit light.
Thanks to those who said wind it in to lean it off - I don't understand, but I'll take your word for it
Also, Thanks for the web link - I've tried them before and had no replies - will try again though.
Jeremy.
Jotto - the manual says wind it out 4 turns and start from there ?
1.5 seems a bit light.
Thanks to those who said wind it in to lean it off - I don't understand, but I'll take your word for it
Also, Thanks for the web link - I've tried them before and had no replies - will try again though.
Jeremy.
