During a dry compression test the first puff of the test shows 50 PSI and the maximum reading after 4 strokes is 150 PSI. This indicates ________.

Name: During a dry compression test the first puff of the test shows 50 PSI and the maximum reading after 4 strokes is 150 PSI. This indicates ________.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Weak piston rings are indicated by a low initial pressure that significantly increases after several strokes, as the rings may seal better once they are coated with oil during the compression test.

During a Dry Compression Test the First Puff of the Test