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Thread: CAM WALK

  1. #1
    Senior Member DYNO OPERATOR
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    CAM WALK

    HAS ANYONE USED A CLOYES 2 PIECE QUICK BUTTON TIMING COVER.BY THEIR ADD YOU SHOULD BE ABLE TO ADJUST CAM END PLAY WITHOUT REMOVING THE COVER,GOOD OR BAD IDEA?
    AND YES MY CAM IS WALKING,IT IS SET AT 38* AT IDLE BUT WHEN I REV THE MOTOR IT RETARDS ABOUT 2-3*

  2. #2
    Senior Member RACING JUNKIE curtisreed's Avatar
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    We are using them on each of our SBCs. Very nice product. They are built very strong and the machining on both of them was very good.

    Curtis

  3. #3
    Senior Member MASTER BUILDER
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    I have used one on a sbc for 2 years with no problems.When I first put it on the inside of the cover was hitting the front main cap before the cover sealed on the gasket.I removed some metal from the cover to get clearance.Bill Bates.

  4. #4
    Senior Member RACING JUNKIE
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    Just curious, what ignition box are you using?

  5. #5
    we have a timing lite mounted on a stand,that runs during dyno pulls.i have found it is comon to gain or lose timing at the top end of the pulls. not realy sure why? last hei with advance lock out would retard 2 to 3 in the last 500rpm of the pull. slack in the timing chain, distributor shaft end play, gear wear, cam walk. all might contribute some, and lets not forget the control module. i like solid cam thrust buttons. roller bearing types have seized up, and the needle bearings have gotten through moroso oil pick tubes :cry: had good luck with cloyes covers, some times they dont get along with stock type water pumps. hope this helps stickboy331

  6. #6
    Senior Member DYNO OPERATOR
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    Quote Originally Posted by shawnp
    Just curious, what ignition box are you using?
    MSD 6AL

  7. #7
    Senior Member RACING JUNKIE
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    Re: CAM WALK

    Quote Originally Posted by JEFF69Z28
    HAS ANYONE USED A CLOYES 2 PIECE QUICK BUTTON TIMING COVER.BY THEIR ADD YOU SHOULD BE ABLE TO ADJUST CAM END PLAY WITHOUT REMOVING THE COVER,GOOD OR BAD IDEA?
    AND YES MY CAM IS WALKING,IT IS SET AT 38* AT IDLE BUT WHEN I REV THE MOTOR IT RETARDS ABOUT 2-3*
    put a crank trigger on it and that problem will be gone ... but I can tell you mine does the samething without trigger, I hook up trigger and its steady and runs identical

  8. #8
    Senior Member DYNO OPERATOR
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    Re: CAM WALK

    Quote Originally Posted by hammertime
    Quote Originally Posted by JEFF69Z28
    HAS ANYONE USED A CLOYES 2 PIECE QUICK BUTTON TIMING COVER.BY THEIR ADD YOU SHOULD BE ABLE TO ADJUST CAM END PLAY WITHOUT REMOVING THE COVER,GOOD OR BAD IDEA?
    AND YES MY CAM IS WALKING,IT IS SET AT 38* AT IDLE BUT WHEN I REV THE MOTOR IT RETARDS ABOUT 2-3*
    put a crank trigger on it and that problem will be gone ... but I can tell you mine does the samething without trigger, I hook up trigger and its steady and runs identical
    Just curious how would a crank trigger stop cam walk?or are you saying my cam isnt walking?

  9. #9
    Senior Member RACING JUNKIE
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    It's hard for me to think that cam walk can cause 2 to 3 degrees of change in the timing. What David was talking about (crank trigger) takes away all the movment of the cam and gives you the true timing. The cam twist and flexes due to driving the oil pump, it's takes 25 HP and more to drive an oil pump at high RPMS, especially if you're running heavy weight oil and pushing 60 to 100 LBS of oil pressure and that's where most of your timing change is comming from. That's why a crank trigger gets it right. Think about it the cam is about .800 dia. slightly more than 3/4" dia and 2 ft. long. That's why most of the big dogs run dry sumps and crank triggers and all NASCAR teams do.

    I'm not saying your cam is not moving, but i am saying that a button will not correct the timing problem completely.

    JMO

    Zip.

  10. #10
    Senior Member DYNO OPERATOR
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    Quote Originally Posted by zipper06
    It's hard for me to think that cam walk can cause 2 to 3 degrees of change in the timing. What David was talking about (crank trigger) takes away all the movment of the cam and gives you the true timing. The cam twist and flexes due to driving the oil pump, it's takes 25 HP and more to drive an oil pump at high RPMS, especially if you're running heavy weight oil and pushing 60 to 100 LBS of oil pressure and that's where most of your timing change is comming from. That's why a crank trigger gets it right. Think about it the cam is about .800 dia. slightly more than 3/4" dia and 2 ft. long. That's why most of the big dogs run dry sumps and crank triggers and all NASCAR teams do.

    I'm not saying your cam is not moving, but i am saying that a button will not correct the timing problem completely.
    Thanks for the info Zip i just talked to MSD and he said to install a crank trigger and the problem should go away if it doesnt than more than likely the cam is walking.How much timing change would you exspect if my cam was walking.

    JMO

    Zip.


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