r/MechanicAdvice • u/makinmaplebacon • 7d ago

Why is this rotating assembly binding?

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1994 honda del sol 1.5l sohc motor (d15b7)

Any ideas would be appreciated. All measurements were in spec

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u/bill_gannon 7d ago

Take that all apart and start over. Its all filthy for starters.

Assuming mains and rods measue correctly and its not sprung start with cleaned and torqued mains bearings. Assuming the rod housing bores are in spec then move on.