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Thread: '69E admission rebuild - Questions

  1. 05-20-2019, 02:01 AM #1
    GeorgeK
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    '69E Intake Rebuild - New Questions

    Since the shell is at the body shop and will be for a while, I am working on other parts.

    I have pulled the left side intake stack out and started disassembling it while taking measures and notes. A few questions popped up:

    - Can I replate the ball and socket joints, or will that damage the fit?

    - Is the *rubber* tube spacer/bearing surface correct on the large pivot on the inner side of the stack?

    - What can I clean the lower half with, without damaging the pivots of the throttle flaps?

    - The actuator arm to the idle switch is broken and seems bent. Can someone conform whether is has a bend in it, and measure the length from its pivot to the adjut screw?

    - The microwsicth is open until pressed upon, or closed until pressed uopn? Mine is open either position.
    Last edited by GeorgeK; 06-08-2019 at 09:46 AM.
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  2. 05-20-2019, 07:57 PM #2
    edmayo
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    That bell crank gets two plastic bushings, readily available. You can replate everything except the aluminum connecting links. Zinc plating will dissolve those.
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  3. 05-20-2019, 11:23 PM #3
    GeorgeK
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    Thank you Ed. Now to find my magnet...
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  4. 05-21-2019, 06:07 AM #4
    gled49
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    I’ve rebuilt lots of MFI engines, always had pro-rebuilds on throttles, makes them run better and removes guess work. 69-71 throttles with arms on one side and stops on the other, always show more wear. G
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  5. 05-25-2019, 10:11 PM #5
    GeorgeK
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    Still hoping someone can measure the actuator arm.
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  6. 05-29-2019, 07:06 AM #6
    gled49
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    69-71 on top, 72-73 on bottom. Is this what u want
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  7. 05-29-2019, 08:13 AM #7
    GeorgeK
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    Yes! thank you.
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  8. 06-08-2019, 09:53 AM #8
    GeorgeK
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    Back at it. I got a parts cleaner, helped a lot to remove, literally, 50 years of gunk.

    Today's questions:
    - Is this much light visible by the throttle plates too much? There is a definite, if small, ridge visible where the plates close in the intake. There is no play that I can feel in the shafts.
    -the surface of the intake is rough even after thorough cleaning, i.e. it is casting roughness, not caked dirt. Any advantage/disadvantage in smoothing them over?
    -who rebuilds these?
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  9. 06-08-2019, 10:02 AM #9
    gled49
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    George, too much light. I’m going to my fall back position, time for a pro-rebuild. Expensive but worth it. G
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  10. 06-08-2019, 10:04 AM #10
    GeorgeK
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    G, I thought as much.
    Brings up the question:. Who is good at rebuilding these?
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