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  1. #61
    Not the Kingswood! hq308's Avatar
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    Quote Originally Posted by GtoGeoff View Post
    hq,
    Nothing wrong with my comprehension skills, but maybe you should brush up on your READING skills. You claimed in post 47 that there would be a minimal change in f/level, measured in thousandths, if fuel pressure changed. That is the part that was wrong. I gave you an example in post 49 of a 2 psi change [ 6 to 8 psi ] that changed fuel level 0.090".
    So is Doug Roe wrong too?
    I think most people would think 0.090" was a LOT more than minimal! 0.009" would be minimal.
    To put the numbers into more perspective, going from the initial 0.265" float setting with 6 psi to 0 psi changed the float setting by 34%. 34% ain't minimal...
    That's not correct, your example used a 0.090" different float setting to get the same fuel level, close but no cigar. You're example may or may not also include other variables such as different floats? Show me a real world example where ONLY the fuel pressure is changed and ALL other things are equal.

  2. #62
    casual poster
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    Quote Originally Posted by Smitty2 View Post
    yes.. it can
    end of a small screwdriver will do the job
    Thanks Smitty, that will work.

  3. #63
    casual poster
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    Quote Originally Posted by GtoGeoff View Post
    Kavesh,
    Are you getting nozzle drip at idle? Engine warmed up & running, use a torch to look at the tips of the brass tubes in the primary bores for any fuel dripping.
    As far as I know no, but I will confirm as described here Geoff.

  4. #64
    Senior Member
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    hq,
    Read it AGAIN. Only fuel pressure was changed on a Chev carb, from 6 to 8 psi, 0.090" change reqd in float setting.
    Those numbers came from a chart titled: 'Relation of inlet size & fuel pressure to float setting'
    QJs have a very short float [ compared to say Carter/Edel ]. That is going to reduce the leverage that the float can exert on the n/seat against increased fuel pressure. So fuel level will rise more, relatively speaking, before the float can close the n/s. Hence the large numbers.

    Roe covers this aspect on p. 142: ' A float shape with more material in the fuel may help to...control fuel level'

  5. #65
    been here .......too long Smitty2's Avatar
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    .... I changed fuel pressure from 7psi to 14psi (via a pump change) and fuel level change was zero
    with the engine not running and at idle
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  6. #66
    Senior Member
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    Well I would remove it & put in a glass case because it is very special.

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