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Tapping lifters, please help

Discussion in 'Reader's Rides' started by brandonstc6, Dec 3, 2017.

  1. brandonstc6

    brandonstc6 Addicted to ArboristSite

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    I have a 1940 Chevy 4 door sedan. I installed a 235 6 cylinder from a 1957 Chevy car. The engine sounded really good before it was removed from the car. I then installed the engine in my car. The engine ran really good in my car. Then I got busy with other things and parked the car in the barn. The car sat for about 4-5 months. Today I started the car and there is a tapping noise coming from under the valve cover. What could be wrong and what can I do to fix it?
    Thanks


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  2. Jed1124

    Jed1124 Addicted to ArboristSite

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    Could be a clogged oil hole to one of the lifters or a valve in need of adjustment. Pull the cover and have a look.
     
  3. Duce

    Duce Addicted to ArboristSite

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    Does the tappet noise decrease as engine warms up? Solid or hydraulic lifters?
     
  4. ChoppyChoppy

    ChoppyChoppy Addicted to ArboristSite

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    Did you do an overhead? Probably just a valve or two out of adjustment.
     
  5. brandonstc6

    brandonstc6 Addicted to ArboristSite

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    I’ve never had the motor opened, it supposedly has 5000 or so miles on a rebuild


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  6. ChoppyChoppy

    ChoppyChoppy Addicted to ArboristSite

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    ray benson and Duce like this.
  7. Slicksty6

    Slicksty6 ArboristSite Lurker

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    Did you change the oil? If so, what kind: synthetic or regular and what weight?
     
  8. brandonstc6

    brandonstc6 Addicted to ArboristSite

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    I have not changed the oil, it’s not too far from needing a change tho.


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  9. buzz sawyer

    buzz sawyer Addicted to ArboristSite

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  10. Sleepy

    Sleepy Grumpy Old Man

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    If it didn't have this problem when it was parked, I doubt it's an adjustment issue.
    I'm guessing it has hydraulic lifters and the ones left holding the valves open during the the 4-5 months it was parked, probably leaked down.
    You really need to identify what kind of lifters are in this engine first, and go from there.
     
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