Not very dangerous itself, but I forgot to put some stuff into the intake holes on the head
to seal it (was missing the manifold) .
So the thing is that "some" random material has gotten into the head/cylinders. cyl 1&4 are closed by valves so thats ok, but 2&3 have some gaps down into the cylinder. I can see that theres some small specks of crap in the intake holes...
Is it safe to just try to vacuum most of the crap up through spark hole and crank it after that?
Engine just had a new head gasket so would hate to tear it apart to find its shiny...
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