Inspection
- 63 -
3.2.3. Cylinder head
z
Carefully remove carbon from the lower face of the cylinder head using nonmetallic material to
prevent scratching of the valve seat faces.
z
Check the entire cylinder head for very fine cracks or damage invisible to ordinary sight using a
hydraulic tester or a magnetic flaw detector.
1) Cylinder head disassembly
NOTE :
Be careful for the cylinder head
gasket contacting surface of
cylinder head not to be damaged.
z
Remove the cotter pin pressing the
valve spring by means of a special
tool.
z
Take out the valve stem seal.
z
Pull out the intake and exhaust
valves.
z
Remove the valve guides from the
combustion room side of cylinder
head by means of a special tool.
2) Inspection and measurement of cylinder head
a) Inspection of cracks and damage
z
Eliminate the carbon residue and gasket piece from the cylinder head lower face thoroughly.
Then be careful for the valve seat not to be damaged.
z
For cracks or damages to search difficult may be inspected by a hydraulic test or a magnetic
powder test. (Hydraulic test is same as for cylinder block.)
Valve spring
compressor
EA0M4007
EFM2034I
To Next Page
Loading...
Need help?
General
