Tricks to keep cam from slipping? | FerrariChat

Tricks to keep cam from slipping?

Discussion in 'Technical Q&A' started by Irishman, Aug 31, 2025 at 9:01 AM.

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  1. Irishman

    Irishman F1 Rookie

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    Kevin
    I have a 1979 308 GTS and I am trying to install a new timing belt. The problem I am having is the exhaust cam for the front 5-8 bank wants to slip off the factory mark. When I change the belts I always adjust the valves and replace the cam seals so I take the cams out and do not bother with something like a locking tool.

    I oiled the caps and the channel the cam sits in which is probably making it easier for it to slip. I have thought introducing some friction might help such as putting a post-it note under one of the caps and of course removing it once the belt is on.

    Eventually, I have always succeeded but I am wondering if there is a trick to help keep the cam on the mark while I install the timing belt?

    Thanks!
     
    Irishman, Aug 31, 2025 at 9:01 AM
    #1
  2. fatbillybob

    fatbillybob Two Time F1 World Champ Consultant Owner

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    fatbillybob, Aug 31, 2025 at 11:53 AM
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  3. yelcab

    yelcab F1 World Champ Consultant

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    Don't forget to remove it before you turn the engine over.
     
    yelcab, Aug 31, 2025 at 1:22 PM
    #3
  4. Irishman

    Irishman F1 Rookie

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    Great, I'll start smoking ;)
     
    Irishman, Aug 31, 2025 at 4:02 PM
    #4

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