Who out there has ideas on how to construct an alternate air source for my wee IO-360?

 

Some (most?) Mooney M20´s simply have a springloaded alternate air valve located after the air filter.

If the air filter is blocked by ice, the valve is sucked open, feeding "warm" air from from the engine compartment to the engine. Simple as that.

 

Tim Jorgensen

360MKIIOB