240 psi compression test?
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240 psi compression test?
I did a compression test on my motor this morning along with changing plugs etc, and it resulted in all of them being around the 240 psi range. The fuel pump was unplugged, the cylinders had no oil in them, and I did it with the throttle body open and the motor was warm. Question is....isn't my compression supposed to be around 180? What's happening? I looked inside the little spark plug hole with a flash light and it's super clean and silver looking. I'm baffled. Someone explain this to me.
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