Cub Cadet MTD 70 Series - Manual (Page 101)

Cylinder head
95
75 Series heads
A. Loosen the rocker jam nuts.
B. Remove the rocker stud nuts.
C. Lift the rockers and the carrier off as an assem-
bly.
D. Remove the push rods.
NOTE: Once broken-in, the rocker arm should be kept
with its corresponding valve.
NOTE: The intake and exhaust push rods are identical and
interchangeable. It is preferable, but not absolutely
necessary to return the same push rods to their
original locations on engine with substantial (>100
hours) operating time.
NOTE: If replacing the head, double-nut and remove the
exhaust and carburetor studs before removing the
head bolts.
5. Remove the cylinder head bolts using a 12mm
wrench. See Figure 9.7.
NOTE: The 75 series engine requires a 13 mm wrench.
6. Lift the cylinder head off of the engine.
7. Carefully clean all sealing surfaces of all gasket resi-
due. Do not scratch the sealing surfaces. See Figure
9.8.
NOTE: Make a visual inspection of the valves and cylinder
bore to confirm the initial diagnosis.
NOTE: Check for signs of a dropped valve or and piston
damage any time the head is removed.
Figure 9.6
Rocker stud nuts
Figure 9.7
Cylinder head
bolts
1
2
3
4
Figure 9.8
Clean gasket
surface
Oil supply passage
Push rod chamber and oil return
Alignment
dowels