Carb Troubleshoot
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Mopar Fan
Joined: Jul 2012
Posts: 32
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Carb Troubleshoot
(Carter BBD Two Barrel / Stock 318 / 69 Plymouth Satellite)
I just rebuild the carb and it got everything tuned as best I can but now it runs poorly going down the road. It randomly studders and I think I herd it backfire up through the carb once. I think I went wrong by altering the two screws that bold in the venturi cluster in. (the hollow bolt w/ holes) I thought one of the holes in the bolt needed to line up with a hole in the cluster, when it was tightened down and I couldnt get them to line up so I cut off about 3/8" off the bottom of one until it would line up.
Do the length of these bolts matter at all?
I should have left them alone, but in my defense I think the gas fumes got to me.
I just rebuild the carb and it got everything tuned as best I can but now it runs poorly going down the road. It randomly studders and I think I herd it backfire up through the carb once. I think I went wrong by altering the two screws that bold in the venturi cluster in. (the hollow bolt w/ holes) I thought one of the holes in the bolt needed to line up with a hole in the cluster, when it was tightened down and I couldnt get them to line up so I cut off about 3/8" off the bottom of one until it would line up.
Do the length of these bolts matter at all?
I should have left them alone, but in my defense I think the gas fumes got to me.
Mopar Lover
Joined: Nov 2007
Posts: 2,424
Likes: 248
I don't have a clue, unless you somehow got the wrong screw in place. The venturi cluster should set down in there nice and square with no fuss at all.
You have the gasket in there, the right gasket?
How about the accelerator pump check? Is it somehow sticking up, jamming the cluster from setting square?
You have the gasket in there, the right gasket?
How about the accelerator pump check? Is it somehow sticking up, jamming the cluster from setting square?
Thread Starter
Mopar Fan
Joined: Jul 2012
Posts: 32
Likes: 0
The venturi cluster has the right gasket and it set just fine but the screws that hold it all in, the ones with the hole running down through, I thought may have something to do with my problem. If its not that then it has to be the way the carb is adjusted. Starts and idles fine, when I floor it it runs fine, just driving mid speed down the road it acts up.
Mopar Lover
Joined: May 2011
Posts: 2,732
Likes: 361
From: Ontario Canada
I looked at mine and it does have hole down the center, but I don't know why they are there other than an air bleed. Don't know why they had to be cut that much unless you forgot the cluster cover plate. That one has me stumped.
As far as when the stumble occurs, I would think sticking step-up piston that holds the metering rods or missing piston gasket that goes in first before the spring and piston. Just guessing, but the sticking piston makes the most sense to me. Good Luck, and let us know.
As far as when the stumble occurs, I would think sticking step-up piston that holds the metering rods or missing piston gasket that goes in first before the spring and piston. Just guessing, but the sticking piston makes the most sense to me. Good Luck, and let us know.
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