I attended one of the Cessna 170 forums at Sun-n-Fun on Thrusday, April 15th, 2004 in Lakeland. Dale Faux was the moderator. I wanted to know what thickness and what aluminum allow (1100, 3003, 5052, etc) should I use to repair and or replace the engine baffling on my 1953 Cessna 170.
Dale suggested that George Horn would know. At any rate, I thought it would be better to post the entry here so that other members would have the information.
Aluminum alloy and thickness for engine baffle repair?
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
Baffling
I also sat in the same seminar. I have completed a few repairs and have found that 3003 H14 (.032) seems to work pretty good. Its soft enough to make critical bends like the one's over the top of the cylinders that require a 180 degree bend. Sure takes a bit of time to make them presentable.
Since the original was 1100 H-14 .032", is there any reason to use anything else. For example, is 1100 H-14 .032" better than 2024T3 for the cylinder baffles?
I have heard that 2024T3 is more prone to cracking under vibration than the softer aluminum. I am also assuming that the 1100 H-14 is softer than 2024 T3.
While I am at it on the baffles, what is a good material to use to seal the baffles to the cowling?
I have heard that 2024T3 is more prone to cracking under vibration than the softer aluminum. I am also assuming that the 1100 H-14 is softer than 2024 T3.
While I am at it on the baffles, what is a good material to use to seal the baffles to the cowling?
Spruce (and others) sell silicone-based baffle seal material in 3" width's and 9' lengths. It does well.
If you want the more original type "P" seal, let me know, and when I get back from this trip, I'll try to find a source for you.
If you want the more original type "P" seal, let me know, and when I get back from this trip, I'll try to find a source for you.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.