Re: Faint ticking from all 6 cyl
Sounds to me like the lifters, if it was the extractors I'd suggest the gasket was leaking.
Try using an oil with a higher hot viscosity, like a 20/50 or something, see if that fixes it. Lifters do tick when they get a bit older but 9 times out of 10 this will cure it for a fairly long while.
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