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darrell · 05-18-2021, 04:45 AM

anytime i heard a y block with a knock at idle that sounded like piston slap it was always a spun wrist pin bushing.they will run for years like this.ive seen it many times people always think its piston slap.

05-18-2021, 04:45 AM	#15
darrell Senior Member Join Date: Dec 2010 Location: p.e.i. Posts: 1,060	Re: engine knocking 292 anytime i heard a y block with a knock at idle that sounded like piston slap it was always a spun wrist pin bushing.they will run for years like this.ive seen it many times people always think its piston slap.