Unpleasant surprise in 50 year old pan!

Discussion in 'Small Block Tech' started by 69WILD, Nov 5, 2021.

  1. 69WILD

    69WILD Ron

    Assembling question. Is it normal to be able to slide the new Cam shaft in too far? Does the timing chain just center it? (I realize I don't have sprocket on fully in pic.)
     

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    Last edited: Jan 8, 2022
  2. 69WILD

    69WILD Ron

    Seems too far
     

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  3. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    Lifters do not ride on the center of the camshaft lobes. They are offset to be able to spin the lifter.
     
    sean Buick 76 likes this.
  4. 69WILD

    69WILD Ron

    No adjustments correct? Also new timing chain seems very tight. I realize all new bearings make quite a difference.
     

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  5. SteeveeDee

    SteeveeDee Orange Acres

    That's enough flex. It'll be fine. Oil it up before putting the cover on!
     
  6. sean Buick 76

    sean Buick 76 Buick Nut

    Yup all good
     
  7. Dano

    Dano Platinum Level Contributor

    Mark Demko likes this.
  8. Mark Demko

    Mark Demko Well-Known Member

    Wheres the cam break in paste/lube? 20220108_174822.jpg
     
  9. 69WILD

    69WILD Ron

    It's blue. It oozed out when I turned the cam a bit. I'll put more assembly lube on the lobes before I install valley pan and intake. But timing cover and oil pan first. It's starting to look like an engine again.
     

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    patwhac likes this.
  10. 69WILD

    69WILD Ron

    Making progress slowly.
     

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    Mark Demko, partsrparts and patwhac like this.
  11. sean Buick 76

    sean Buick 76 Buick Nut

  12. 69WILD

    69WILD Ron

    Getting closer. Waiting for booster to get back from plater. Painted top of firewall also.
     

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  13. sean Buick 76

    sean Buick 76 Buick Nut

    Looking good!
     
  14. Mark Demko

    Mark Demko Well-Known Member

    Good job!
     
  15. 69WILD

    69WILD Ron

    So I was watching a "jack of all trades" video today.

    At about 25:13 in he concluded a lifter wasn't pumping and was defective.



    So when I primed my oil pump I don't recall checking meticulously that every pushrod rod had good flow. I am about ready to break in the cam this week. Do I really need to first remove valve covers again and confirm each rocker arm hole oil flow with my priming tool? Or?
     
  16. sean Buick 76

    sean Buick 76 Buick Nut

    No just fire it up and listen for noisy lifters. The priming tool isn’t very effective at getting oil to each lifter, just get it running and you will know very quick if there is an issue. If so stop and investigate.
     
    69WILD likes this.
  17. 69WILD

    69WILD Ron

    That makes good sense thanks :)
     
    sean Buick 76 likes this.
  18. telriv

    telriv Founders Club Member

    Not every pushrod will get oil in one spot of engine rotation. It takes a few diff. places BEFORE oil gets to everyone.

    Tom T.
     
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  19. patwhac

    patwhac Well-Known Member

    I seem to remember someone mentioning to run the priming tool while turning the engine over in 90 degree increments to mitigate this?

    I've also heard the theory that pre-lubing too much will wash away your cam break in lube?
     
    sean Buick 76 likes this.
  20. sean Buick 76

    sean Buick 76 Buick Nut

    Yes don’t over prime just prime till you get pressure and then start it. Don’t wash the lube away.
     
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