Cub Cadet MTD 70 Series - Manual (Page 110)

61, 65 and 70 Series Vertical Shaft Engines
104
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.
6. Pivot the rocker arms aside, or remove them com-
pletely, and 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 iden-
tical 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) operat-
ing time.
7. Remove the muffler, by following the steps
described in Chapter 8: Exhaust.
8. Double-nut and remove the exhaust studs, using
the same method described in Chapter 3: Air Intake
and Filters.
9. Remove the carburetor as described in Chapter 3:
Air Intake and Filters.
10. Remove the cylinder head bolts using a 14mm
wrench. See Figure 9.4.
11. Lift the cylinder head off of the engine.
NOTE: Early production had the alignment dowels
fit in the head bolt holes next to the push rod
chamber. See Figure 9.5.
Figure 9.3
Jam nut
Fulcrum nut
Head bolts
Head bolts
Figure 9.4
Cylinder head
bolts
Figure 9.5
Alignment dowels