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P90 Series Vertical Shaft Engines
90
Push rod guide plate
The push rods move through a guide plate that aligns the push rods with the rocker arms. The guide plate also
acts as a bushing for the push rods. Over time, the guide plate will wear out and need to be replaced.
NOTE: A guide plate that is worn out can allow the push rod to slip out from under the rocker arm. When that
happens, the push rod will side load the rocker arm, breaking the rocker arm stud.
To service the push rod guide plate:
1. Remove the valve cover.
2. Disconnect and ground the spark plug wire.
3. Remove the spark plug.
4. Rotate the engine to TDC of the compression
stroke.
See Figure 9.14.
5. Remove the rocker arm jam nuts using a 10 mm
wrench while holding the fulcrum nuts with a 14 mm
wrench.
6. Remove the fulcrum nuts and the rocker arms.
7. Remove the push rods.
8. Remove the rocker arm studs and the guide plate
using a 14mm wrench
9. install the guide plate by following the previous
steps in reverse order.
NOTE: Tighten the rocker studs to a torque of 195 -
221 in lbs (22 - 25 Nm).
10. Adjust the valve lash by following the procedures
described in Chapter 1: Introduction.
11. Test run the equipment in a safe area before return-
ing it to service.
Figure 9.14
Probe for TDC
Jam nut
Fulcrum nit
Figure 9.15
www.mymowerparts.com
For Discount Cub Cadet Parts Call 606-678-9623 or 606-561-4983
www.mymowerparts.com
For Discount Cub Cadet Parts Call 606-678-9623 or 606-561-4983
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