Change External (CAV) Fuel Filter Element

Parts / Tools

• Replacement filter element with seals.
• Medium-size shifter.
• Waste container for spilled fuel.

The filter.

Method

• Holding a container under the filter glass, undo the water drain screw. Catch and dispose of fuel as it runs out.



Water drain screw.

• Remove the water-drain bolt from the base of the filter.
• Loosen the vent screw at the top of the filter, drain fuel currently in filter, and discard.
• Remove complete filter / glass assembly.
• Discard the old filter and seals.
• Clean the parts that will be refitted - glass, base, screws.
• Reassemble filter with new element and seals.



Cleaned ready for reassembly.

• Refit assembly to the filter body.
• Air will need to be bled from the fuel lines before starting the engine.