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  1. #1
    bscpaint's Avatar
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    is it safe to run a cam with a slight crack in it

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ID:	310570I know that sounds like a dumb question but the deal is when I took my cam out to do the threaded cam plugs I noticed that one of the bolt holes on the exhaust cam is slightly cracked. is this safe to run this way or should I replace the cam. Its been running this way for about 5 hours most likely since I installed the cam gears but when I installed them I torqued it to what the instructions said
    Last edited by bscpaint; 08-16-2013 at 08:47 PM.


  2. #2
    bscpaint's Avatar
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ID:	310573 yes its that small or I wouldent be asking.

  3. #3
    nicjak's Avatar
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    All cracks start out small the problem with this one is the thread is now open so it isnt torqued to correct tension. Worst case bolt will work loose, or ear could tear off, cam gear could work loose. If you were to use it I would locktite it in maybe even lock wire the bolt all will be a gamble and time will tell. In any case I would be checking it every 5~10hrs could turn expensive when and if it fails.

  4. #4
    bscpaint's Avatar
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    I threw some locktight on that bolt and its still holding at 17lbs so I don't know what hapened. I'm going to look for another exhaust cam or just look to get this one welded

  5. #5
    yol937's Avatar
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    Can be welded and fixed, he'll I have seen people weld the cam gears pm the cams to keep from the bolts coming loose

  6. #6
    big john's Avatar
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    17 ft lbs is why its cracked that's way over torqued !!!!! 17ft lbs is what you would torque a 8mm bolt to. i know the manual says 17.7 but i believe it supposed to 13 ft lbs if i recall

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  8. #7
    bscpaint's Avatar
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    Thats what I get for doing things the right way, how could they put that number in there knowing its going to break the cam?

  9. #8
    big john's Avatar
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    Quote Originally Posted by bscpaint View Post
    Thats what I get for doing things the right way, how could they put that number in there knowing its going to break the cam?
    typo when manual was printed, happens all the time. i loctited mine and torqued them to 180in lbs still going strong !!!!

  10. #9
    abracadabra's Avatar
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    Yes!!!!

    That was a known issue on the manual specs, Julio...

  11. #10
    djg123159's Avatar
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    Find a engine shop that can reprofile cams they should be able to weld it and re tap it for you.
    a crack is a crack no mater how big.
    Ps. The only dumb question is the one you dont ask!!

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