High altitude compression test?
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High altitude compression test?
I did a compression test tonight and consistantly read 145-155 psi on all cylinders. Searching through past posts this seems low. Searching google has revealed that lower readings will occur when the test is performed at a high altitude.
Does anyone know how much affect altitude has on these readings?
Absolute pressure is normally about 77kpa here.
Does anyone know how much affect altitude has on these readings?
Absolute pressure is normally about 77kpa here.