Ok it turns out I have a leaking inlet cam seal. The seal in question is the black ptfe type, being replaced with a rubber one.
I haven't a seal tool, I'd like to know if it's a good idea to remove cam cap slide off old seal & replace with new then just tighten cap back up?
I haven't a seal tool, I'd like to know if it's a good idea to remove cam cap slide off old seal & replace with new then just tighten cap back up?