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Inspection and adjustment
XF ENGINE
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3. INSPECTION AND ADJUSTMENT
3.1 CHECKING AND ADJUSTING THE VALVE MECHANISM BRIDGES
Loosening and torqueing the lock
nuts (B) of the bridges may cause
severe engine damage if the bridge
is fitted on the valves.
1.
Remove the valve covers, see chapter
“Removal and installation”.
2.
Place the fuel pump in the stop position.
Lock the fuel pump in this position.
3.
Remove the DEB or the lubricating-oil strip
(depending on model).
4.
Remove the entire rocker bracket. Mark the
position to allow reinstallation in the same
position.
Note:
In engines equipped with a DEB, the bridges of
the inlet and exhaust valves are not the same.
In engines without a DEB, the bridges of the
inlet and exhaust valves are the same.
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