Ford F150 Pickup. Manual — part 1054
Fig. 125: Removing Rocker Arms
Courtesy of FORD MOTOR CO.
4. Remove the rocker arms.
1. Remove the bolts.
2003 Ford Pickup F150
2003 ENGINE Engine - 4.2L - F150 Pickup
2. Remove the rocker arms.
5. Using the special tool, compress the valve spring.
Fig. 126: Compressing Valve Spring
Courtesy of FORD MOTOR CO.
6. Remove the following:
1. Remove the valve spring retainer key.
2. Remove the valve spring retainer.
3. Remove the valve spring.
4. Remove and discard the valve stem seal and seat.
2003 Ford Pickup F150
2003 ENGINE Engine - 4.2L - F150 Pickup
Fig. 127: Removing Valve Spring Retainer Key, Retainer & Valve Spring
Courtesy of FORD MOTOR CO.
7. Inspect the components, if necessary. For additional information, refer to ENGINE
SYSTEM - GENERAL INFORMATION .
Installation
CAUTION: The components removed should be marked for location;
make sure the components are installed in the correct
location.
NOTE:
Lubricate parts with clean engine oil.
2003 Ford Pickup F150
2003 ENGINE Engine - 4.2L - F150 Pickup
Fig. 128: Installing Rocker Arm
Courtesy of FORD MOTOR CO.
1. To install, reverse the removal procedure. Tighten the rocker arm bolts in two stages.
2003 Ford Pickup F150
2003 ENGINE Engine - 4.2L - F150 Pickup
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