carb air boxes

Everything about your Aeronca, not Chief or Champ or Sedan specific.
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Posts: 87
Joined: Fri Oct 02, 2009 22:07
Location: Wendell, NC

carb air boxes

Post by dlrude » Tue Feb 24, 2015 09:45


I am repairing a 7ccm with a c90-12f and using the drawings to put it back together. The engine installation drawing calls out a different carb airbox number depending on which fuel system that you have and which carb.

This plane has a 26 gallon fuel system and a Stromberg carb so it calls for a 4-877-3 air box.

Looking at drawing 4-877 rev. G I just can't see any mention of a -3 mod or part.

Does anyone know what the -3 implies? What is a -3 box compared to others?

Thanks, Dave

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David Johnson
Posts: 585
Joined: Sat Nov 20, 2004 08:28
Location: Jasper, Georgia

Re: carb air boxes

Post by David Johnson » Fri Feb 27, 2015 16:18

Dave, everything I have seen uses the 4-601 air scoop assembly. I don't have the 4-877 print to look at. Every Champ I have ever seen has this air box. Except for the L-16 with fuel injection. David J./Jasper, GA

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