What caused this damage to the piston and head?
I am trying to figure out what caused the damage to this piston and head. I
also found little pieces of metal in the intake plenum. not sure what they are
either? Valves, rockers, springs, rods all look okay.
is the plug gap/s closed??? how long has it sat without starting? did you ever here knocking///pre. ign !
also what does the top of the pistion look like... ?
the plug gap is not closed. It was driven every day. The only knocking was when it died.
piston matches the head damage.
chunks found in intake plenum
dropped a valve guide
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