7290-157 Lesson 3

Whilst carrying out a cylinder leakage test you hear air escaping from Air cleaner, what is likely issue?

• Cylinder not on TDC compression

• Inlet Valve stuck closeed

• Inlet valve not seated

• Head gasket

While doing a compression test you need to record your maximum pressure, how do you find this information?

• Autodata

• Manufacturers hand book

• Multiply Compression ratio by 20

• Look in workshop manual

During a a cylinder leak test you observe air coming from engine breather, hat is most likely fault?

• Piston rings worn

• Head gasket blown

• Cracked cylinder head

• Piston not at TDC on compression.

What is meant by a 'Dry' compression test?

• Fuel system is disengaged

• Spark plugs are cleaned

• Engine oil from fresh un-opened canister

• Readings taken without oil in bores

What is purpose of tool shown?

• compressing valve springs

• Compressing valve collets

• Compressing valve guides

• Compressing valve stems

What is tool shown?

• Valve spring compressor

• Piston ring compressor

• Gudgeon ring clamp

• Glazebuster

What task is technician carrying out?

• Flywheel run out

• Crankshaft depth test

• Crankcase end wear

• Crankshaft end float

What can be determined from carrying out this test?

• Whether connecting rod is bent

• Whether head gasket is too big

• Whether piston too small

• Whether Crown worn

When checking cylinder head for flatness which tools would you use?

• DTI and magnetic block

• Straight edge and feeler

• Vee Block and DTI

• Straight edge and depth gauge

When measuring flatness of cylinder head or block how many which is best method?

• 
• 
• 
•