Chapter 26

Technician A says that a leaking head gasket can be tested for using a chemical tester. Technician B says that leaking head gasket can be found using an exhaust gas analyzer.

B

Technician A says that during a power balance test, the cylinder that causes the biggest RPM drop is the weak cylinder, Technician B says that if one spark plug wire is grounded out and the engine speed does not drop, a weak or dead cylinder is indicted. Which technician is correct?

B

Technician A says that the paper test could detect a burned valve. Technician B says that a grayish white stain on the engine could be a coolant leak. Which technician is correct?

Both

Two technician are discussing oil leaks. Technician A that an oil leak can be found using a fluorescent dye in the oil with a backlight to check for leaks. Technician B says that a white spray owed can be used to locate oils leaks. Which technician is correct?

Both

A good reading for a cylinder leakage test would be?

Less than 10% leakage

A smoothly operating engine depends on

equal compression between cylinders

Cranking vacuum should be

higher than 2.5 in hg

A good engine should produce how much compression during a running (dynamics)d compression guest at idle?

idle 60 to 90

Which of the following is the least likely to cause an engine noise?

vaccuum

The low oil pressure warning light usually comes on

when oil pressure drops dangerously low