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Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315

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BuyFindarrow_forward

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315
Textbook Problem

Technician A says that if an engine had good results from a compression test, it will have good results from a cylinder leakage test Technician B says that if an engine had good results from a cylinder leakage test, it will have good results from a running compression test Who is correct?

  1. Technician A
  2. Technician B
  3. Both A and B
  4. Neither A nor B

To determine

The technician with the correct opinion about the compression test and the cylinder leakage test.

Explanation

Given information:

Technician A says that if an engine had good results from a compression test, it will have a good result from a cylinder leakage test.

Technician B says that if an engine had good results from a cylinder leakage test, it will have a good result from a running compression test

A compression test is carried out to know if the pressure in all the cylinders of the engine lies within the specified limits or not. The compression test examines the amount of pressure building up inside cylinder during the compression stroke. For carrying out the compression test the engine is cranked with the throttle open and this is carried out under the condition that ignition is kept disconnected. If the pressure in all the cylinders is within the specified values given by the manufacturer, the engine is usually considered okay. If the pressure inside the cylinders is found varying and having different values that is, pressure is found to be uneven or low, a leakage test is carried out...

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