so what Tom is saying is, in all truthfullness when cam seals are leaking it's major service time.
Right Tom?
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and I agree...
problem is this John, you're asking for a judgement call and we can't see the leak. However, when I see cam seal leaks of a serious enough nature I advise that the correct, real and prudent way to proceed is to take it all apart, clean, service and put it all back together again which amounts to a full (top end at least) major service.