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 in need of help 
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Joined: Wed Mar 18, 2015 8:21 pm
Posts: 5
I'm in need of help. Rebuilt carb unknown of history of it. I put it on had float to higy so it was sending alittoe extra fuel out the top down the butterflys out the throttle shafts well you get the idea. So I turn down the float fixed that. I let it runlittle bit rrevved good idle good shut it off. Waited few seconds and it started leaking out of the throttle shafts and out of the lower gasket wouldn't start your if it had to.

I tore it back apart sanded off the epoxy off and re epoxyed it thinking it was leaking by some how. Well put it back on and it still did the same thing .

What could be causing this proble


Wed Mar 18, 2015 8:32 pm
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Joined: Sat Mar 29, 2014 10:27 am
Posts: 42
What is your float level set to (example .250 inch, .375 inch) and what is your carb number? I'd also check your needle and seat for trash and your fuel pump pressure. By chance do you have that little clip for the float needle hooked into one of the small holes on the float arm?


Thu Mar 19, 2015 11:35 am
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Joined: Wed Mar 18, 2015 8:21 pm
Posts: 5
Carb is 7045213

From the top of the float to top of main body is half inch now since I turned it down

There is a clip on the needle that rides on the float arm but therea no holes in it


Thu Mar 19, 2015 5:29 pm
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Joined: Sat Mar 29, 2014 10:27 am
Posts: 42
Stock float level for that carb is 15/32". Check if the float is soaked/saturated with fuel. Maybe time for a new needle/ seat and float. Have you checked the fuel pressure yet?


Thu Mar 19, 2015 5:53 pm
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Joined: Wed Mar 18, 2015 8:21 pm
Posts: 5
No fuel pressure yet
Its a new needle and seat and float
I might try the old needle and seat see it that helps or makes it worse

It was actually 16/32


Thu Mar 19, 2015 6:23 pm
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Joined: Sat Mar 29, 2014 10:27 am
Posts: 42
Make sure you don't have an "extra" washer under the brass seat.


Thu Mar 19, 2015 6:56 pm
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Joined: Sat Mar 29, 2014 10:27 am
Posts: 42
Just remembered one other thing - make sure that the top of the float retainer extends above the top of the float bowl casting. When the top is screwed down, it holds the float retainer in place.


Fri Mar 20, 2015 7:44 am
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Joined: Wed Mar 18, 2015 8:21 pm
Posts: 5
I'm thinking the retainer is fluse with bowl I'm not 100% sure but ill double check after work thank you very much for your help


Fri Mar 20, 2015 8:29 am
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Joined: Fri Feb 08, 2013 2:37 pm
Posts: 1702
You need to check the fuel pressure. Six lbs. is plenty, more than 6 just makes flooding more likely to happen. For some unknown reason (actually, someone in China knows) some new "stock replacement" fuel pumps have 12-15 lbs. pressure and are the cause of flooding. If you have such a pump, put a Holley FP regulator on it and set the pressure to 5 PSI. If there is ethanol in the fuel (E-10?) then the fuel pressure can rise over 10 PSI easy when the engine is hot because of the vapor pressure of the fuel. The cure for that is to use a pump or fuel filter with a vapor return line to the tank. Nearly every vehicle made since 1970 has a vapor return line to the fuel tank.

When the engine is not running, if fuel drips from the boosters, or the accelerator pump is pumped, the gas will wick through the throttle shaft hole in the base and drip off the throttle shaft. Just because fuel is dripping from the throttle shaft doesn't necessarily mean the shaft is worn or the shaft hole is worn. A QJ is manufactured with more clearance in the throttle shaft than many other carbs, so a new one is looser than some other carbs might be when they are worn. When the engine is running the vacuum pulls the blades and shaft to the bottom of the shaft bushings and the vacuum pulls air in through the shaft so gas can't drip out.

The float could be soaked with gas. Compare the weight to a new float.


Mon Mar 23, 2015 9:26 pm
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