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Camshaft Break-in

Discussion in 'Engine Building' started by BigDave, Oct 8, 2004.

  1. BigDave

    BigDave Junior Member

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    I recently had some new Crower 403's put in my Integra and have a few questions about break-in period.

    First I have synthetic oil in my car now. It wasn't until after the cams were installed that I read that you should not use Synthetic oil during the break-in period. Will this damage the cams if I continue to use synthetic oil? Should I do an oil change and put regular petroleum based oil in my car now? It currently has about 22 miles on the new cams. Can I change from synthetic to petroluem based oil?

    Any help is appreciated
     
  2. swanny

    swanny Senior Member

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    Switch to non-detergent dino oil for the first 1000 miles or so
    Let the car idle for 20 minutes
    Don't drive real hard
    Adjust valves
     
  3. 97CTR

    97CTR Senior Member

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    I beleive that the non-synthetic oil thing is only for breaking in of rings, as the synthenic oil molecules don't allow for a good "bite" into the cylinder walls by the rings. I think you should be ok for your cams.
     
  4. B16

    B16 Super Moderator VIP

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    yes, there is no break in for cams. install them, set the lash, and have fun.
     
  5. BigDave

    BigDave Junior Member

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    Crower suggest that the cams be broke in with regualr oil. I just don't know if it will damage anything if I run synthetic. I think tomorrow I will just do an oil change and run regular oil for about 500-1k and then change back to synthetic. :shrug:
     
  6. Arachnid

    Arachnid Senior Member

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    install, set lash, idle for 10-20 min, drive around for about 400 miles, let engine cool, set valve-lash again, check for abnormal wear on camshaft, bearings, and rocker assembly, maybe swap oil if you want, then.......let it rip!!!!

    i believe that's how you're supposed to do it. what do i know i only have a 12 sec all motor sohc











    hahaha j/k.
     
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