Cylinder Head Assembly Repair
600 SRM 1068
3.
Turn the crankshaft in the normal direction of ro-
tation until the inlet valve of number four cylin-
der has just opened and the exhaust valve of the
same cylinder has not fully closed. Check the
valve clearances on number three cylinder and
adjust them as necessary.
4.
Turn the crankshaft in the normal direction of ro-
tation until the inlet valve of number one cylin-
der has just opened and the exhaust valve of the
same cylinder has not fully closed. Check the
valve clearances on number six cylinder and ad-
just them as necessary.
5.
Turn the crankshaft in the normal direction of ro-
tation until the inlet valve of number five cylin-
der has just opened and the exhaust valve of the
same cylinder has not fully closed. Check the
valve clearances on number two cylinder and ad-
just them as necessary.
6.
Turn the crankshaft in the normal direction of ro-
tation until the inlet valve of number three cylin-
der has just opened and the exhaust valve of the
same cylinder has not fully closed. Check the
valve clearances on number four cylinder and ad-
just them as necessary.
NOTE: After valve adjustments, lubricate the rocker
assembly with clean engine oil.
VALVE SPRINGS
NOTE:
This procedure is normally for changing the
valve springs of a single cylinder while the cylinder
head is still installed on the engine. If the valves and
springs must be removed from the cylinder head for
repairs, see the procedures under Valves and Valve
Springs, later in this section.
Special Tools:
Valve spring compressor
Stud adapter
Setscrew adapter
1.
Remove the valve cover.
2.
Turn the crankshaft in the normal direction of
rotation until the piston for the cylinder is at top
dead center (TDC). The inlet valve will just open
and the exhaust valve will not be fully closed
when the cylinder is at TDC.
3.
Remove the rocker arm assembly.
4.
Install the spring compressor and the adapter.
See Figure 10.
1.
VALVE SPRING
COMPRESSOR
2.
STUD ADAPTER
3.
SETSCREW
ADAPTER
Figure 10. Valve Spring Compressor
5.
Compress the valve springs and remove the re-
tainers. Verify the valve springs are compressed
parallel to the valve stems, or the valve stems can
be damaged.
NOTE:
Do not turn the crankshaft while the valve
springs are removed.
6.
Release the valve spring compressor and remove
the retainer cap and valve springs.
NOTE:
The outer diameter of the exhaust valve guide
is 1 mm (0.039 in.) larger than the inlet valve guide.
To prevent leakage past the inlet valve stem it is im-
portant that the larger exhaust valve seal is not fitted
into the inlet guide. The seals are color coded.
7.
Install new valve stem seals on the valve guides.
Verify that the brown seal is installed on the
exhaust valve and the green seal on the inlet
valves.
8.
Install the new valve springs. The springs can be
fitted with either end toward the cylinder head.
9.
Install the retainer cap.
10. Use the valve spring compressor to compress the
valve springs and install the retainers. Remove
the valve spring compressor.
11. Install the rocker arm assembly.
12. Check the valve clearances. See Valve Clearance
Adjustments.
13. Install the valve cover.
8
