Hi everyone

Does anyone know how to remove the oily crud surrounding the fuel injectors and avoid oily contaminants falling into the fuel injector holes?

Thanks
Gabriel

Spray engine degreaser around the injector recesses... wait 15min... hose out.
Then with a ¼" tube duct taped into your vacuum cleaner nozzle, suck out any crude/water/dirt remaining.
Wait for any remaining water to dry out and carefully pull the injectors.
Carefully clean out any remaining crud.
Use strips of rag rolled into a plug to block the holes.