Removal and Installation
NOTE:
Remove foreign material from the spark plug well using compressed air.
Remove the spark plug.Item | Part Number | Description |
---|---|---|
1 | — | Deposits bridging spark plug gap |
2 | — | Wet black deposits (oil fouling) |
3 | — | Dry black deposits (carbon fouling) |
4 | — | Normal spark plug |
5 | — | Pre-ignition |
6 | — | Overheating |
7 | — | Fused spot deposits |
Ford Focus Piston Ring-to-Groove Clearance
Special Tool(s)
Feeler Gauge Set
303-D027 (D81L-4201-A) or equivalent
NOTE: Refer to the appropriate Section 303-01 for the specification.
Inspect the piston for ring land damage or accelerated wear.
Using the Feeler Gauge Set, measure the piston ...