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Thread: Valve clearance

  1. #1
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    Valve clearance

    I need to adjust the valves of my 263 engine of my 1952 Super Riviera. Could not find the correct clearance on the intake and exhaust valves. Any help will be most appreciated.

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    valve clearance

    Does it have hydraulic lifters? In any event, go to "References" at top of this page. There is a 1952, I believe, Shop Manual there. All you will need to know should be found there. After reading that, if questions remain come on back for answers.

    Good luck

    Ben

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    Quote Originally Posted by firstofeight View Post
    Does it have hydraulic lifters? In any event, go to "References" at top of this page. There is a 1952, I believe, Shop Manual there. All you will need to know should be found there. After reading that, if questions remain come on back for answers.

    Good luck

    Ben
    Thank you Bent. In matter of fact, I have the original printed version of this manual (it´s old and greasy but good enough to read). I looked to it, but couldn´t find a clear reference to these valves clearance. My car has hydraulic lifters. Maybe because some language misunterpretation I couldnt see it ( english is not my native language).

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    adjusting valves.

    OK, here is the procedure.
    Turn the engine until BOTH valves on a cylinder are closed. Loosen the rocker arm adjuster until the arm can me rocked up and down. Now, tighten the adjuster until the arm just touches the valve stem. There should be no rocker arm "rock". NOW turn the adjuster 1 1/2 turn more. This preloads the hydraulic lifter. Do this for each cylinder. This information is in the 1950 Shop Manual in the section on the hydraulic lifters, I believe.

    Let me know if this is not clear.

    Good luck
    Ben

    P:S
    Look at page 47 of the '52 manual. It is described there.

    Ben
    Last edited by firstofeight; 06-08-2018 at 09:38 AM. Reason: New info

  5. #5
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    hydraulic lifters are self adjusting.

    you can't find a "clearance spec" because there isn't one. that's a spec that's needed for solid lifters.
    The way to crush the bourgeoisie is to grind them between the millstones of taxation and inflation.
    Vladimir Lenin

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    H.H. Goddard, Human Efficiency (1920)

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    Hydraulic lifters.

    Quote Originally Posted by bob k. mando View Post
    hydraulic lifters are self adjusting.

    you can't find a "clearance spec" because there isn't one. that's a spec that's needed for solid lifters.
    Correct, Bob. They must be adjusted to the "preload" per the manual.

    After that, leave them alone.

    Ben

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    Smile

    Quote Originally Posted by firstofeight View Post
    Correct, Bob. They must be adjusted to the "preload" per the manual.

    After that, leave them alone.

    Ben
    Thank you Ben. It´s clear now. Will follow the recommendation and will come back if something does not go well.

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