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> I think it's the carb, Too mush fuel
RogerYellow914
post Nov 1 2014, 09:12 PM
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The car was running fine. Then last week, it started to pop and backfire on the freeway at 70 in 5th. It did fine in 4th at 70. Later in the day going up a grade at 70, it started to backfire real bad and lost power. I pulled over and it wouldn't idle. It was hard to start and then died. Investigation found fuel on the air cleaner cover on the passenger side carb.

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Is this an indication that this float is bad? Is there a way to test the float vs. the valve?

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Does this look like too much fuel in the bowl?

Thanks,

Roger
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sgetsiv
post Nov 23 2014, 09:34 PM
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When you did the rebuild did you soak the carb body to clean out the idle circuit and progression circuits? It's not that hard to pull the idle jets and idle mixture screws and then blow compressed air through there - both directions. I would do this on both sides, all four circuits.

Mark is right, adjust the valves and be sure you are doing it correctly. Test for compression. Once these things are done AND you are sure those idle and progression circuits are absolutely clear, then you should test again. You will need to adjust the mixture screws for best lean idle as well.

Good luck.
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Posts in this topic
RogerYellow914   I think it's the carb   Nov 1 2014, 09:12 PM
sgetsiv   I had the exact same issues a couple months ago wi...   Nov 2 2014, 09:11 AM
Mark Henry   Stop using mush fuel ;)   Nov 2 2014, 09:19 AM
RogerYellow914   Well I rebuilt the carb and put everything back to...   Nov 23 2014, 08:10 PM
McMark   Generally, major damage is indicated by LOUD NOISE...   Nov 23 2014, 08:16 PM
sgetsiv   When you did the rebuild did you soak the carb bod...   Nov 23 2014, 09:34 PM
RogerYellow914   Thanks for the responses. Hopefully I'll have ...   Nov 23 2014, 11:54 PM
RogerYellow914   I finally had a chance to start working though thi...   Jan 2 2015, 10:44 PM
Dave_Darling   The larger lugs are correct for a 73+ motor. Look...   Jan 2 2015, 11:05 PM
McMark   Those aren't swivels. There are two styles of...   Jan 3 2015, 12:32 AM
brant   Also when you were adjusting the carbs were you us...   Jan 3 2015, 08:32 AM
Mike Bellis   Popping is usually due to lack of fuel. A lean con...   Jan 3 2015, 10:15 AM
drifter914   Popping is usually due to lack of fuel. A lean co...   Jan 3 2015, 10:36 AM
RogerYellow914   Thanks for the responses. I'll pull it apart a...   Jan 3 2015, 10:49 AM
r_towle   Start at the beginning and doubt everything you di...   Jan 3 2015, 02:15 PM
Elliot Cannon   Make sure the idle jets are clean. This might hel...   Jan 3 2015, 06:19 PM
Ansbacher   Take Drifter914's advice and check the coil. ...   Jan 3 2015, 09:34 PM
RogerYellow914   Well I just had a chance to investigate this some ...   May 3 2015, 02:37 PM
RogerYellow914   It’s been 5 years. But I finally got to drop th...   Jul 4 2020, 04:38 PM
porschetub   It’s been 5 years. But I finally got to drop t...   Jul 4 2020, 07:23 PM
SirAndy   :unsure: :sick:   Jul 4 2020, 05:53 PM
Superhawk996   Not really repairable. Well . . . everything is...   Jul 5 2020, 08:06 AM


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