after playing off-road, there are many sand or mud around the glow plug, how to remove them? I use a 掃 but can't remove all sand around the glow plug... I am afraid some of the sand will go into the engine.......
Ben,
there are bottles of compressed CO2 or spray-on brake cleaners for sale @ KWS or automotive stores.
It's a good idea to spray and blow off any dust/pebbles away before removing the glow plug.
Cheers~