"whistle" on decel

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slick4x4
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Post by slick4x4 »

might be your passenger....
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Astrowing
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Post by Astrowing »

The other thing to check is the inlet and discharge balls and make sure they are in the correct location. There are two balls and they are not the same size. The inlet ball is the larger of the two.

During decel, there is a transition circuit that comes into play that would probably work in an interesting manner if it wasn't configured correctly.

The old gaskets in my carb are leaking all over the place. I'm surprised it ran as well as it did! :D
1961 caribbean turquoise flareside 223
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F7BIGJOB
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Post by F7BIGJOB »

Any luck, Chris? :popcorn:
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1965 F-250 4x4 Flareside



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ezernut9mm
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Post by ezernut9mm »

no steve. i will have to apologize, it does seem to be vacuum related, but i for the life of me can't tell where it's coming from. i cannot make it do it from a stop. revving in the driveway from under the hood or with the foot feed, but as soon as i start driving and let off the gas i can hear the whistle.
it is driving me crazy.
always
"i believe i've achieved satisfaction".-bubbles
"should i be gettin" baked for this boys?"-bubbles


i could no longer keep "r.i.p.ing" all of our fallen brothers and sisters, so i say here, slick loads of love and much respect to all you beautiful people.
ICEMAN6166
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Post by ICEMAN6166 »

ezernut9mm wrote:no steve. i will have to apologize, it does seem to be vacuum related, but i for the life of me can't tell where it's coming from. i cannot make it do it from a stop. revving in the driveway from under the hood or with the foot feed, but as soon as i start driving and let off the gas i can hear the whistle.
it is driving me crazy.
how loose is the butterfly shaft in the carb housing ? air may be sucked in around the shaft as you are letting off the gas and the plate is closing and the vac is rising. not going to do it with short revs.
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ezernut9mm
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Post by ezernut9mm »

hmmm...
always
"i believe i've achieved satisfaction".-bubbles
"should i be gettin" baked for this boys?"-bubbles


i could no longer keep "r.i.p.ing" all of our fallen brothers and sisters, so i say here, slick loads of love and much respect to all you beautiful people.
jamesdfo
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Post by jamesdfo »

Years ago, I had two different friends with Toyota 4x4 pickups that developed the same problem (but at different times)....they would let off the gas to upshift (manual trans), and there would be a brief chirp......it turned out the exhaust manifold bolts were loose in both cases.....we knew what to do to the second one from the same symptoms in the previous case:)

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Leeroy
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Post by Leeroy »

As much as I hate saying this (cause I hate doing it!) can you start swapping things to try and isolate the problem? Ie carby?

I've had a vibration on the mrs focus for about a year and it's drives me NUTS! I understand your paaaaiiin!
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