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#1
03-03-2007, 03:20 AM
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Holley carb rebuilt, now both floats sank!
I rebuilt my Holley 4557 carb and when I went to start it tonight it ended up spitting gas through the vent tube and I found both brass floats sunk. Any thoughts to what might have caused this? I want to give it another try tomorrow. I checked both floats in water and they float fine and the needle and seats are new.
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69 Z28 JL8, #'s match - being restored 
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#2
03-03-2007, 03:42 AM
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Re: Holley carb rebuilt, now both floats sank!
Jeff;
Were these new floats? Eric
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#3
03-03-2007, 03:52 AM
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Re: Holley carb rebuilt, now both floats sank!
No, they are the original brass floats from the carb. Can they go bad over time from sitting?
__________________
69 Z28 JL8, #'s match - being restored
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#4
03-03-2007, 04:15 AM
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Re: Holley carb rebuilt, now both floats sank!
Yep.
Put a new set of brass floats in it and go from there. Eric
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#5
03-03-2007, 05:07 PM
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Re: Holley carb rebuilt, now both floats sank!
Correct, New Brass Floats, not the JUNK new plastic ones. They are trouble a lot of the time. It amazes me that some reliable carb rebuilders still put plastic ones in.
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#6
03-04-2007, 12:21 AM
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Re: Holley carb rebuilt, now both floats sank!
Well, new brass floats, another new set of needle and seats, new fittings and same result. It looks like it might have just been the secondary float that sank right away this time. Fuel came spewing out the vent tube. I'm not sure what it could be but it's getting old being covered with gas!
__________________
69 Z28 JL8, #'s match - being restored
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