The verdict (short version): All three rocker arms in the left
cylinder head are broken, and cylinder #4 exhibits reduced
compression.
Can the rocker shaft be removed with the engine in the car? As
reluctant as I am to spent any money on this dangerously rusty,
essentially worthless car, I'd be inclined to replace the broken
rockers and live with the compromised compression if I could fix it
with the engine in the car.
I'm still puzzled as to why this happened. I couldn't find anything
noticeably wrong with the belt or the tensioner. The ignition was
still timed correctly, the right cam was retarded one tooth, and the
left cam was retarded three or four teeth. What the hell?
Joe Elliott
'82 GTV-6
'88 Porsche 928
'68 Fiat Dino Coupe
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