Cub Cadet MTD P71 Series - Manual (Page 88)

P71 Series Vertical Shaft Engines
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6. Loosen the jam screws and fulcrum nuts that secure
the rocker arms using a 10mm wrench and a 14mm
wrench. See Figure 9.3.
7. 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.
8. Remove the muffler and exhaust manifold, by fol-
lowing the steps described in Chapter 8: Exhaust.
9. Remove the two screws that secure the intake man-
ifold to the cylinder head. See Figure 9.4.
10. Loosen the nut on the intake manifold support stud.
11. Remove the cylinder head bolts using a 10mm
wrench. See Figure 9.5.
12. Lift the cylinder head off of the engine.
13. Carefully clean all sealing surfaces of all gasket res-
idue. Do not scratch the sealing surfaces.
NOTE: Make a visual inspection of the valves and
cylinder bore to confirm the initial diagnosis.
14. Place a new head gasket on the cylinder or head,
depending which one has the alignment dowels.
Use the alignment dowels to hold it in place while
positioning the head on the cylinder.
Figure 9.3
Jam screws
Figure 9.4
Figure 9.5