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ermax · 01-03-2018, 12:20 PM

I also vote for valve train rather than bottom end. To rule out the pulley you are suspicious of, try running it without the belt for a few seconds.

01-03-2018, 12:20 PM	#15
ermax Senior Member Join Date: Sep 2017 Drives: 2022 BRZ Limited Silver Location: Jacksonville, FL Posts: 2,533 Thanks: 883 Thanked 2,049 Times in 1,191 Posts Mentioned: 68 Post(s)	I also vote for valve train rather than bottom end. To rule out the pulley you are suspicious of, try running it without the belt for a few seconds.