cleve_thompson
Well Known Member
As I read months ago on VAF forum, one uses paper clips on the edge of the baffles to check clearance between the baffles and the cowl. The only problem is that until one gets some clearance this trick doesn't work. I am installing baffles in a RV9A with an O 320 Lycoming and am using the standard baffle kit from Van's. I "guesstimated" that if I cut off 1/2" from the rear baffles using the original contour, I would get some clearance. This worked and then I put on the clips as seen in this photo. You know you are there when there is about 3/8 to 1/2" of paper clip sticking up above the baffle edge when you put on and take off the cowl.
After cutting and grinding some more, I got the required clearance. I then used the same method for the side baffles. I found that the original contour was fairly accurate but that it required cutting slightly more from the center of the back baffles and from the forward ends of the side baffles. The contour around the nose seems to be pretty good.
I am so glad that there is a fine source of information in the Van's Air Force Forum.
Thanks D.R.
After cutting and grinding some more, I got the required clearance. I then used the same method for the side baffles. I found that the original contour was fairly accurate but that it required cutting slightly more from the center of the back baffles and from the forward ends of the side baffles. The contour around the nose seems to be pretty good.
I am so glad that there is a fine source of information in the Van's Air Force Forum.
Thanks D.R.