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Holley Boosters coming loose? Anyone seen this?

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Old 05-16-2007, 09:37 AM
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Holley Boosters coming loose? Anyone seen this?

Is it a "common" problem for the booster nozzles on Holley 4150's to come loose? I've never heard of it, but I suppose it's possible.

If it DID happen, is the point of contact between the booster and body, lower than the fuel level in the bowl? If it DID come loose, would it cause fuel to pour into the carb bore?
Old 05-16-2007, 11:05 AM
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If it was loose, it would leak air into the fuel path rather than pull fuel into the airstream like the booster is supposed to do.
Old 05-16-2007, 11:09 AM
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Re: Holley Boosters coming loose? Anyone seen this?

Originally Posted by five7kid
If it was loose, it would leak air into the fuel path rather than pull fuel into the airstream like the booster is supposed to do.
..because where the booster connects to the carb body is ABOVE the fuel level in the bowl....correct?

Someone is arguing w/me that if that booster is loose, that will cause fuel to pour into the bore when the engine is off. I say, if the booster is loose, and the float system is performing and adjusted properly, no fuel will leak into the bore, because the level of the fuel is below that part (port) of the carb.
Old 05-16-2007, 11:15 AM
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Re: Holley Boosters coming loose? Anyone seen this?

Originally Posted by Tom 400 CFI
..because where the booster connects to the carb body is ABOVE the fuel level in the bowl....correct?
Just looking at the location of the booster relative to the float site plug should answer that, but, yes.
Old 05-16-2007, 11:18 AM
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Re: Holley Boosters coming loose? Anyone seen this?

Originally Posted by five7kid
Just looking at the location of the booster relative to the float site plug ...
Exactly. I just wanted to make SURE, before I berate this guy!

Thanks for posting.

-Tom
Old 05-16-2007, 06:31 PM
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Kinda along the same lines as people asking if you will drain the oil pan if you just take the oil filter off.

(Hope my previous reply didn't sound terse - it wasn't meant to.)
Old 05-16-2007, 06:47 PM
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Re: Holley Boosters coming loose? Anyone seen this?

Originally Posted by five7kid
(Hope my previous reply didn't sound terse - it wasn't meant to.)
Nope, it sounded clear and straight forward.

You can read the drivel here if you care...
http://www.tmcowners.com/teamtalk/sh...ad.php?t=16295
"Matt L." is ALL about the loose venturi. He's well meaning, but he was steering the OP in the wrong direction, so I (Storm861triple) felt I had to say something.

Thanks again.
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