Chapter 9: Cylinder Head
83
The Cylinder head of the MTD engine can be removed
without removing the engine from the application.
To remove the cylinder head:
NOTE: If possible, It is recommended that the
machine be positioned on the bench so that the
cylinder head is vertical for removal.
See Figure 9.1.
NOTE: This position provides easy access to
most service points, yet prevents undue oil spill-
age.
NOTE: Do not store the engine in this position
for a long period of time. The oil will seep into the
breather chamber.
NOTE: It is not absolutely essential to remove
the fan shroud, but taking the engine cover off, if
equipped, will ease access to some compo-
nents.
1. Disconnect and ground the spark plug high ten-
sion lead.
Figure 9.1
2. Remove the spark plug using a 13/16” or 21mm
wrench. See Figure 9.2.
3. Rotate the crankshaft until it is at TDC of the
compression stroke by following the steps
described in the valve lash section of Chapter 1:
Introduction.
4. Remove the four screws securing the valve
cover using a 10mm wrench. See Figure 9.2.
5. Loosen the jam nuts and fulcrum nuts that
secure the rocker arms using a 10mm wrench
and a 14mm wrench. See Figure 9.3.
Figure 9.2
Valve cover
screws
Spark plug
removed
Figure 9.3
Jam nut
Fulcrum nut
Head bolts
Head bolts
CHAPTER 9: CYLINDER HEAD
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