Valve train noise

Billbo said

Rockers are adjustable. Hydraulic lifters. I'm in Sydney.
Regards
Billy D...

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Oh OK, that is simple. Just give them another 1/4 to 1/2 turn to tighten them up.

Your hydraulic Lifter is at the end of it's stroke and can no longer compensate for the minimal wear.

Need to get the hydraulic plunger back into the middle of it's stroke, not at the end like it is now.