[jonascord]

There is no 'c' in sintering. Sintered bronze bushings, pressed bronze powder mixed with a lubricant, have been popular for years for low speed linear and limited rotation joints.

I'm only supposing, here, but I'm betting that the bushing that let go was a sleeve bushing, or the bearing that the rocker arm pivots on.

[tumblindice]

It was the rocker arm, connected to the pushrods from the camshaft and valve. ‘Rocks’ up and down?
Like so many things I’ve pronounced but never tried to spell, I should stick with Ockham, Ocham, Offham, whatever, I usually stick too many letters in.
Yeah, it was like a gunshot under the hood.