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Re: '87 5k exhaust manifold removal question...
There's a fiber optic inspection tool with built in illumination,
be darned if I can remember what it's called, which may save you
from pulling the head. --hate to see those manifold studs snap
off like that! Anyway, the tool fits easily into the spark plug
hole, and you'll get a "close up and personal" look at the
condition of your cylinder walls since the gizmo gives a magnified
image at the eyepiece. There's a medical instrument that's
similar, but this's a mechanical inspection tool...