DubTrub
I'm bit confused about
:
(incidentally, the old adage about "going to cold to prevent dirt ingestion" only applies to carburettors with intake air filters...mine has none, and I have never had any problem with cr@p causing carb problems...now if I was in the Arizona sand desert, that might be another matter!)
An aircraft with no air filter on the main air intake, interesting. What aeroplane is it?
The dust ingestion wouldn't do much adamage to your carb although sucking in a pile of loose grass would spoil your day. However, dust ingestion would play merry Hell with your cylinder bores and piston rings over a period of time. I used to work for an air filter manufacturer and have seen the results of feeding controlled quantities of Arizona red dust into a running engine.
When I had a Cub with it's ice generating, accelerator pump free A-65 Continental I used to taxi to the runup position, run the engine for a minute or so to a) warm the exhaust thus making the application of carb heat more effective and b) to blow the loose grass, dust etc away before opening the unfiltered hot air intake. Applying carb heat until the symptoms of icing are clear is then effective and also unlikely to result in sucking in dust.
Smooth and relatively slow application of the the throttle is the order of the day with carbs with no accelerator pump. Slamming the throttle open WILL result in the engine stopping. I've always worked on a count of "one thousand and one, one thousand and two, one thousand and three" to take me from the idle setting to full power.