MuuMuu101's 68 Dart, A Learning Process...

MuuMuu101 said

Pulled the front driver spark plug and couldn't rotate the engine by hand with the crank pulley. Spark plug was black as night.

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You’ll have to pull all the plugs, so there’s no compression happening when you spin it. Makes it a ton easier to turn. Otherwise you’ll probably need a socket and a bar on a high compression engine.