SInce you mentioned an alternator belt. I am assuming it is a Lycoming
with the alternator up front.
My new alternator came with the blast attachment on the back of the
unit. We ran a 1" hose to the front of the cowling. A flange may be
necessary for your installation. Mine is attached under the air filter
housing. Just under the engine air intake.

Michelle

wrote:

Thanks for that. Heat might be an issue - I had to crack the cowl flaps
open to keep the cyl head temps down yesterday - it was 10C at 8000'!
How did you install a blast tube?