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  1. #1

    Fuel smell in oil - 310

    Hi guys,

    After installing new forged pistons (wossner) i ran the jetski using non-synthetic oil for around 8hrs as a running in period. This week I performed a service and changed back to full synthetic oil (rock oil 15w-50).

    The ski has been running well after installing the new pistons but after the last i noticed that there is a smell of fuel in the oil, which i never noticed before. I performed a compression test and got good results on all 4 cylinders.

    Is that normal after switching to forged pistons? How concerned about this issue should I be?

    Thanks.


  2. #2
    Any suggestions?

  3. #3
    Take the time to smile sirbreaksalot's Avatar
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    Why such thick oil on a fresh rebuild..... I would have stayed 10/40 at best preferable a run in oil... run that for 5 hrs then gone 10/40..... your still in the bedding stage really.

  4. #4
    Quote Originally Posted by sirbreaksalot View Post
    Why such thick oil on a fresh rebuild..... I would have stayed 10/40 at best preferable a run in oil... run that for 5 hrs then gone 10/40..... your still in the bedding stage really.
    So how long more do you think bedding in will take? I thought 8 hours would be enough... Do you think performance/reliability in the long run will suffer do to running that type of oil too early?

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