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Old Mar 21, 2012 | 09:15 PM
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It started with me tinkering with my carburetor. It had a hard idle and with some adjustments my car didn't idle hard anymore however now my car does this rumble when I turn it off and its not all the time either. Its usually after the first run of the day and the rest of the day its fine with it doing a violent shake every now and then. I am thinking I need a new carburetor. Now fluids shoot out nothing the car just shakes.
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Old Mar 22, 2012 | 03:46 PM
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how high is your idle speed, sounds like you are describing runon
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Old Mar 22, 2012 | 04:36 PM
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Originally Posted by MelWff
how high is your idle speed, sounds like you are describing runon


I would guess it's a timing issue - what is your initial timing set at? You might want to retard it a bit.
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Old Mar 23, 2012 | 10:01 AM
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im barely idling at 1000rpm. What sucks about this is that it comes and goes. It usualy gives me a violent shake after my first run of the day and then stops.
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Old Mar 23, 2012 | 07:57 PM
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1000 idle seems a little high. Mine is about 800-850. Do you have your timing set for initial or all in by 28-3200?
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Old Mar 25, 2012 | 12:58 PM
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I adjusted my carb and my car has weak startups and low power. I find myself pumping the pedal to get her started. The car acts like it wants to die especially when i put it in reverse. I didn't have any of these problems until i messed with my carb a week ago.
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Old Mar 25, 2012 | 01:06 PM
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What did you adjust on the carb

Whats the list #

Its stamped on the front of the air horn
Looks something like this

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Old Mar 25, 2012 | 01:29 PM
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i adjusted the idle mixture screw. I touched one of the front screws but barely. I adjusted the screw again and my diesling gets worse, i put it down and my power is so low the car wants to die. I cant find a happy medium.
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Old Mar 25, 2012 | 03:54 PM
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What year, and what carburetor? How many miles since a tuneup?
You may have to go back to square one, and set the engine up by the book and to the specs: both distributor and carburetor.
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Old Mar 25, 2012 | 04:35 PM
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i got the carb three years ago. performer series edelbrock 1400 series. i havent changed my spark plugs in a year. im going to change the spark plugs first and then get ready for a new carb.
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Old Mar 26, 2012 | 03:51 AM
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Originally Posted by czardali
i got the carb three years ago. performer series edelbrock 1400 series. i havent changed my spark plugs in a year. im going to change the spark plugs first and then get ready for a new carb.
As Lars says, 90% carb problems are ignition problems...
Have you checked timing?
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Old Mar 26, 2012 | 09:24 AM
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I have no idea how to adjust my timing. i havent had a runon happen in days. very confusing. im guessing my order of repair is going to be spark plugs,timing, distributor and then i'll mess with the carb.
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Old Mar 27, 2012 | 05:29 AM
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Originally Posted by czardali
I have no idea how to adjust my timing. i havent had a runon happen in days. very confusing. im guessing my order of repair is going to be spark plugs,timing, distributor and then i'll mess with the carb.
Buy a timing light (with dial-back is better) and a vacuum gauge is mandatory in order to diagnose these "old style" cars. My 2 cents...
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Old Mar 27, 2012 | 04:58 PM
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oh man this timing thing seems mighty important... im up for it.
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