scsmith
Well Known Member
Taking a que from Brian Decker (BJDECKER), I decided to try to clean up the exhaust pipe support braces while I am working on the cowl exit.
As Brian suggested, I made a blade with elastomeric grommets.
I couldn't find Viton grommets, so I made some. I took a piece of Viton tubing, 3/16" ID, 5/16" OD, and slipped it inside another piece of Viton tubing, 5/16" ID, 9/16" OD. I cut them off 5/16" long and put them on a mandrel to turn a 1/8 wide by 1/16" deep groove.
![viton grommets.jpg viton grommets.jpg](https://vansairforce.net/data/attachments/21/21034-a0e2ccc5cc59c38193db17a039de2c73.jpg)
These were put into a 1" x 1/8" blade in 7/16" holes, and I filed/sanded an airfoil shape onto the blade
![IMG_1867.jpg IMG_1867.jpg](https://vansairforce.net/data/attachments/21/21035-897b65e3d8ce5ff5bfbb668dc3621256.jpg)
This will get installed in between the pipes in place of the short lengths of stainless tubing joined with a length of rubber hose and hose clamps.
I still have to add an angle bracket to hang my sniffle-valve drain tube.
As Brian suggested, I made a blade with elastomeric grommets.
I couldn't find Viton grommets, so I made some. I took a piece of Viton tubing, 3/16" ID, 5/16" OD, and slipped it inside another piece of Viton tubing, 5/16" ID, 9/16" OD. I cut them off 5/16" long and put them on a mandrel to turn a 1/8 wide by 1/16" deep groove.
![viton grommets.jpg viton grommets.jpg](https://vansairforce.net/data/attachments/21/21034-a0e2ccc5cc59c38193db17a039de2c73.jpg)
These were put into a 1" x 1/8" blade in 7/16" holes, and I filed/sanded an airfoil shape onto the blade
![IMG_1867.jpg IMG_1867.jpg](https://vansairforce.net/data/attachments/21/21035-897b65e3d8ce5ff5bfbb668dc3621256.jpg)
This will get installed in between the pipes in place of the short lengths of stainless tubing joined with a length of rubber hose and hose clamps.
I still have to add an angle bracket to hang my sniffle-valve drain tube.