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Carb going dry while driving. Why?

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  #31  
Old 09-05-2017, 11:56 AM
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Up hill? Like Sunset point? Out of curiousity, have you read your plugs lately? Gas mileage gone down?
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  #32  
Old 09-05-2017, 12:11 PM
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Similar hill. Up/down highway 87.

Gas mileage is about average. Haven't read plugs lately.
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  #33  
Old 09-05-2017, 12:35 PM
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Originally Posted by 351Cleveland C4 View Post
Similar hill. Up/down highway 87.

Gas mileage is about average. Haven't read plugs lately.
Seems like someone mentioned float height changing earlier. I don't know why it would on a Carter style Eddy. But when you mentioned messing up at altitude that is what came to mind.
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  #34  
Old 09-05-2017, 01:27 PM
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I don't know that elevation has much to do with it. It ran just fine up at 6,000ft. (My elevation at home is 1,000-1200ft) And ran great pushing it so hard. Seriously I wasn't going any less than 75 most of the way down from payson. Mostly 80+.

Climbing the last hill coming back into town, my buddy I was following had got in front of me quite a bit and I was going to try to catch him. So just as I started up the hill, I was running 85mph and dropped it into 3rd gear, which brought RPM up close to 4000. And I really laid into the throttle. It ran for about 2-3 seconds like that before I noticed it starting to cut out. So I put it back in 4th gear OverDrive and backed off of it. It never completely died on me, but it never came back to normal either. I drove another 5-6 miles up the road and pulled off the highway at the next opportunity. It was still running, but not at 100%. So I opened the hood and let it cool off for 10-15 minutes in the cool night air. After that I fired it back up, got back on the highway and kept hauling *** another 40 miles back home, absolutely no problem.


Soooo, I think my next step will be to bend a new fuel line from pump-carb, routing it farther away from heat sources, and see what that does for the situation.
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  #35  
Old 09-05-2017, 09:29 PM
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**** has been driving my green hornet for work, pizza delivery because we are in process of a disc brake conversion (that he won't put the time in for) it started doing the same. Turned out to be vacuum lines.
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  #36  
Old 09-05-2017, 09:37 PM
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Hmmmmmm..... interesting. Only vacuum lines I have are for the distributor advance and my vacuum gauge in the cab. (And PCV). I know They're good.
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  #37  
Old 09-05-2017, 09:40 PM
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It actually was the PCV but check the rubber vacuum plugs on the carb.
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Old 09-05-2017, 09:44 PM
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Originally Posted by TeachNlive4ever
It actually was the PCV but check the rubber vacuum plugs on the carb.
Ain't got none
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  #39  
Old 09-05-2017, 09:46 PM
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I had the PCV hose crack one time a few years ago. Truck ran like garbage and there was a loud hiss from the obvious vacuum leak. Popped the hood, wrapped it in duct tape, drove home haha
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