Ford Focus Service Manual: Valve Stem to Valve Guide Clearance - Engine System - General Information
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Clearance Gauge, Valve Guide 303-004 (TOOL-6505-E) or equivalent |
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Dial Indicator Gauge with Holding Fixture 100-002 (TOOL-4201-C) or equivalent |
NOTE:
Refer to the appropriate Section 303-01 for the specification.
NOTE:
The valve stem diameter must be within specifications before checking valve stem-to-valve guide clearance.
- NOTE:
If necessary, use a magnetic base.
Install a Valve Guide Clearance Gauge on the valve stem and install a Dial Indicator Gauge with Holding Fixture. Lower the valve until the clearance gauge contacts the upper surface of the valve guide.
- Move the Valve Guide Clearance Gauge toward the Dial Indicator Gauge with Holding Fixture and zero the Dial Indicator Gauge. Move the Valve Guide Clearance Gauge away from the Dial Indicator Gauge with Holding Fixture and note the reading. The reading will be DOUBLE the valve stem-to-valve guide clearance.
Valve Stem Diameter - Engine System - General Information
NOTE: Refer to the appropriate Section 303-01 for the specification.
Measure the diameter of each intake and exhaust valve stem at the points
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