The tap also has a pilot tip, and the instructions recommend grease again. I used a manual ratchet to drive the tap, but the air ratchet to remove it.

This is the time to vacuum out the cylinder to remove any shavings & grease. I used a ShopVac micro tool kit, then a borescope to inspect. After wiping the hole with clean rags to remove the bulk of the grease, I rinsed it briefly with brake cleaner & then cranked the engine for a moment to blow any residue or remaining debris out.

Owner caption November 2006 · Photo 30 of 133