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12-29-2019, 08:25 AM | #1 |
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Join Date: Aug 2018
Location: BARRIE, Ontario
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How often to Service a QJet carb from the 80's on a 307
Hey Guys,
In the summer time I serviced my carb - QJet from 80's Camaro - with full clean and it was adjusted as well to run more smoothly. I already put on it about 2000 miles, my question is how often should I service/clean my carb. And I only use non ethanol gas at 91 octane. Any thoughts and suggestions would be greatly appreciated.
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1969 'Matte Blackie' Oshawa Built Chevy C10 Stepside 307 three-on-the-tree |
12-29-2019, 09:15 AM | #2 |
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Join Date: Aug 2019
Location: Cheraw
Posts: 1,300
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Re: How often to Service a QJet carb from the 80's on a 307
What do you mean by service. If it ain't broke don't touch it.
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12-29-2019, 11:21 AM | #3 |
Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,676
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Re: How often to Service a QJet carb from the 80's on a 307
If it gets a little cruddy on the outside, just spritz it with carb cleaner. Check the throttle plates for dirt and clean as necessary- again just a spritz of carb cleaner. That would be at tune-up time. You might need to adjust the choke for warmer or colder weather, but other than that you shouldn't have to do anything for a long time.
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
12-29-2019, 12:00 PM | #4 |
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Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,976
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Re: How often to Service a QJet carb from the 80's on a 307
Quadrajets will run trouble-free for tens of thousands of miles. If it's working well, you can stop worrying about it for a very long time.
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
12-29-2019, 01:12 PM | #5 |
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Join Date: Dec 2012
Location: Temple City
Posts: 3,628
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Re: How often to Service a QJet carb from the 80's on a 307
If your carb act funny get the engine warmed up a bit so it idles normal.
Bring rpm up to about 4000, and put your hand over the carb. The vacuum draws a lot of the garbage out of the carb that clogs it. I used to do this practically everytime I popped the hood on my carburetored cars. If you store the car add stability to the fuel, and start every month to get it moving. |
12-29-2019, 03:40 PM | #6 |
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Join Date: Aug 2018
Location: BARRIE, Ontario
Posts: 118
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Re: How often to Service a QJet carb from the 80's on a 307
Thank you all for your suggestions and recommendations. Its running perfect now and I love that after sitting for a month of not starting it starts right up, before(cleaning and servicing the carb) I had to crank it for awhile to get it going after sitting in hibernation.
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1969 'Matte Blackie' Oshawa Built Chevy C10 Stepside 307 three-on-the-tree |
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