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03-08-2012, 01:57 AM
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#1 |
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Registered User
Join Date: Aug 2009
Location: Vancouver, BC
Posts: 147
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????qjet?????
i got a stupid question how do you tune the fuel mixture on a elec choke quadra-jet....got the carb rebuilt now i need to set it up so it will run right
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03-08-2012, 02:15 AM
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#2 |
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Registered User
Join Date: Mar 2012
Location: manti utah
Posts: 67
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Re: ????qjet?????
there should be air and fuel mixture screws near the base run it and tune it till it smooths out
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03-08-2012, 02:23 AM
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#3 |
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Registered User
Join Date: Feb 2012
Location: Austin, Arkansas
Posts: 248
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Re: ????qjet?????
Look under the front of the carb,on each side of the large (pcv)hose on the base.You should see 2 mixture adjustment needles,if it has been done previously. If not you'll see 2 metal plugs. Turning these needles,is what adjusts the idle mixture. Turning them to the right,leans the mixture,and left richens it.The engine must be warm,and certain steps taken,one at a time to do it properly. Can you see the carb ID #,on the driver's side of the carb,by the throttle?(i.e,11082152,etc)runs vertically. It will help to find the correct procedures.
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Always expect the unexpected,....but don't expect the unexpected to be the unexpected you expect ! I'm busier than a one-legged cat,in a sandbox! Veteran..and proud ! I can't fix what ain't broke....you want I should break it? |
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03-08-2012, 02:23 AM
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#4 |
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Registered User
Join Date: Aug 2009
Location: Vancouver, BC
Posts: 147
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Re: ????qjet?????
Are they on the front or under the choke??
Posted via Mobile Device
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1978 GMC C25 LWB
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03-08-2012, 02:27 AM
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#5 |
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Registered User
Join Date: Mar 2012
Location: manti utah
Posts: 67
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Re: ????qjet?????
the front near the base
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03-08-2012, 10:48 PM
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#6 |
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Registered User
Join Date: Dec 2010
Location: Visalia, Ca
Posts: 707
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Re: ????qjet?????
On the base plate. red circle one also on other side similar location
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<Brandon> 1974 Chevrolet K5 Blazer 350sbc/SM465/NP205, dana44 front, corp 14bolt rear with 4.10s and a powertrax locker, custom rear bumper 400sbc in the works.  1981 GMC C1500 stepside 250i6, 3spd, 12bolt with 3.08s 2.5/4drop on 15x10 with 275/50r15 81 GMC C3500 cab-chassis dually with utility bed 350sbc, Sm465, 14bolt with 4.10s nv4500 getting ready to go in 1979 Chevrolet K5 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434096 1976 Chevrolet C10 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434195 |
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03-08-2012, 11:33 PM
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#7 | |
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Registered User
Join Date: Aug 2009
Location: Vancouver, BC
Posts: 147
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Re: ????qjet?????
Quote:
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1978 GMC C25 LWB
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03-08-2012, 11:37 PM
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#8 |
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Registered User
Join Date: Feb 2011
Location: Cold Canada
Posts: 310
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Re: ????qjet?????
wow that is one clean Qjet lol
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03-09-2012, 12:29 AM
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#9 |
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Registered User
Join Date: Feb 2012
Location: Austin, Arkansas
Posts: 248
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Re: ????qjet?????
Thank you,bmchevy1979.I couldn't get any decent pics,for him.
__________________
Always expect the unexpected,....but don't expect the unexpected to be the unexpected you expect ! I'm busier than a one-legged cat,in a sandbox! Veteran..and proud ! I can't fix what ain't broke....you want I should break it? |
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03-09-2012, 12:37 AM
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#10 |
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Registered User
Join Date: Dec 2010
Location: sioux city, iowa
Posts: 619
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Re: ????qjet?????
Let it idle and turn in clockwise one at a time not too tight just til they stop. It should start to miss. Turn them out till they don't miss. One at a time. Usually about 1-2 full turns out.
http://www.73-87.com/7387garage/drivetrain/myqjet.htm |
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