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Thread: power brakes/ stalling

  1. #1

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    power brakes/ stalling

    Anyone guess why my CJ is stalling when my power brakes are applied, never used to since I installed it like 6 months ago. It just started.

  2. #2

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    P.S, I think it might be my pcv valve thats for a chevy 350, though I have of course a 360, or something is wrong with my 670 Holley truck avenger like always

  3. #3

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    Its not the pcv, and its not a vacuum leak i tested everything. I think now that its something with my carb. Anyways holley is already sending me a new 670 because they send there are defects in earlier models or whatever so i hope a new carb fixes it

  4. #4
    Thank you from BT ULTIMUS MAXIMUS STATUS tufcj's Avatar
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    Power brakes on the AMC are usually plumbed into the manifold just forward of the carb. I'd leave it there if you haven't. If there's a vacuum port on the carb, just plug or cap it. PCV should run to a port on the base of the carb.

    Bob
    tufcj
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  5. #5
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    Quote Originally Posted by tufcj
    Power brakes on the AMC are usually plumbed into the manifold just forward of the carb. I'd leave it there if you haven't. If there's a vacuum port on the carb, just plug or cap it. PCV should run to a port on the base of the carb.

    Bob
    tufcj
    Pics or diagram? I need to do that with mine (brake upgrade) - - - whenever I get home... sometime this year.
    " “It is said that men go mad in herds, and only come to their senses slowly, and one by one.." -Charles MacKay
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  6. #6

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    Quote Originally Posted by Mudrat
    Pics or diagram? I need to do that with mine (brake upgrade) - - - whenever I get home... sometime this year.
    Power brakes was one of the best upgrades Ive done, with a little fabricating I got it to work, I'm going to switch from the carb to the intake for vacuum as soon as I figure out where it goes

  7. #7
    Thank you from BT Tech Master Bulltear Forum
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    there is a port on the top of the manifold a few inches forward of the carb right in the middle of the manifold. should be easy to see might have a plug in it or have a fitting that is capped.

  8. #8
    Thank you from BT ULTIMUS MAXIMUS STATUS
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    Well it looks like I MAY be home the first week of Aug to re-commence the final stages of the build



    'Course, I've heard that before ....
    " “It is said that men go mad in herds, and only come to their senses slowly, and one by one.." -Charles MacKay
    "'The trouble with our liberal friends is not that they're ignorant; it's just that they know so much that isn't so.' "
    -Ronald Reagan

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  9. #9

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    i switched the vacuum line from the carb to the manifold and it works great!

  10. #10
    Thank you from BT ULTIMUS MAXIMUS STATUS
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    Cool Beans Rhino!!!
    " “It is said that men go mad in herds, and only come to their senses slowly, and one by one.." -Charles MacKay
    "'The trouble with our liberal friends is not that they're ignorant; it's just that they know so much that isn't so.' "
    -Ronald Reagan

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