- Remove the air injector
- The carbon dam ring must be broken to be re-
moved.
- Carefully clean the air injector and the seat re-
moving any carbon residues.
- Check that the sealing rings exhibit no wear, or
replace them.
- To refit, use a new carbon dam ring.
- Use the specific tool to fit the carbon dam ring.
We recommend doing this in several steps to en-
sure a correct widening of the ring as shown in the
photo.
Specific tooling
020615Y Carbon dam ring fitting kit
- Position the specific tool with the rung facing the
injector as shown in the figure.
- Use the specific tool to tighten the carbon dam
ring seat as shown in the figure.
- Take several steps to ensure a correct insertion
into the seat.
- Refit the air injector in its seat on the head quickly
to prevent the carbon dam ring from expanding
again.
Specific tooling
020615Y Carbon dam ring fitting kit
Crankcase - crankshaft
• Remove flywheel and stator
- Remove the driving pulley
- Remove the driven pulley
- Remove the mixer
Runner Purejet Engine
ENG - 27
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