CH 58 Engine Top End Rebuilding

Valve seat replacement should be performed.....

• Anytime the cylinder head is removed from the engine

• Only when the seat wear is severe

• When replacing valves

• When replacing valve springs

Valve and seat face angle is generally......

• 45 degrees

• 70 degrees

• 15 degrees

Thin wall cylinder head gasket castings have a greater tendency to warp.

• TRUE

• FALSE

What is an exceptable method for restoring worn valve guides?

• Knurling

• Installing false guide

• Boring Oversize for a larger valve stem

• All of the above

What is a correct method to surface a cylinder head?

• Using a blanchard grinding stone

• Using a carbide cutter

• Both of the above

Pinning is always the preferred method to repair a cracked cylinder head, including aluminum.

• TRUE

• FALSE

What is an acceptable method of increasing valve spring pressure?

• Shimming

• Stretching the spring

• Heating the spring

• All of the above

What is a common method for checking cylinder heads for warpage?

• straight edge and feeler gauge

• dial indicator

• outside micrometer

• none of the listed methods

How do you measure the camshaft bearing clearance on a 2 piece camshaft bearing in a OHC engine?

• with inside/outside micrometers

• with plastic guage

• both of the above

It is always a good idea to magniflux all aluminum heads prior to any machining operation.

• TRUE

• FALSE