McFly
Well Known Member
Long story but in the end, I don?t have enough cowl/spinner clearance. I thought I was done with this but I have to revisit and I have painted myself into a corner.
I took as much fiberglass off of the spinner as I could to increase clearance but it is not enough. I have to shave the cowl. The cowl face (the area directly behind the spinner) has been built up on the bottom cowl (micro balloons with super light glass on top) but not much on the top cowl. The 11:30 ? 1:30 clock position has no build up at all. I need to take almost the entire cowl face down at least 1/16? and I need to take some additional material off the 11:30 to 3:00 position. During the shaving process I will end up going though the original fiberglass at the 12:00 to 2:30 position.
Before I start shaving I am going to build up the inside of the cowl in the area where the original fiberglass will get reduced. I have thought of two ways to do this but not sure if either is the best approach.
1) Apply layer cotton flox or micro balloon inside cowl in the affected area, shave cowl, add medium weight bi-directional cloth inside cowl on top of cotton flox layer and surrounding area for structural support, fill outside with micro as needed, add extremely light cloth on outside of cowl for final dressing (sorry I don?t know the weight but it looks like you could make clothes out of it).
2) Apply multiple layers of medium cloth inside cowl to affected area, shave cowl, fill outside with micro as needed, add extremely light cloth on outside of cowl for final dressing.
I am partial to method one and prefer using micro balloons. Will this work OK? Other suggestion? Thanks guys. Man-o-man am I depressed.
I took as much fiberglass off of the spinner as I could to increase clearance but it is not enough. I have to shave the cowl. The cowl face (the area directly behind the spinner) has been built up on the bottom cowl (micro balloons with super light glass on top) but not much on the top cowl. The 11:30 ? 1:30 clock position has no build up at all. I need to take almost the entire cowl face down at least 1/16? and I need to take some additional material off the 11:30 to 3:00 position. During the shaving process I will end up going though the original fiberglass at the 12:00 to 2:30 position.
Before I start shaving I am going to build up the inside of the cowl in the area where the original fiberglass will get reduced. I have thought of two ways to do this but not sure if either is the best approach.
1) Apply layer cotton flox or micro balloon inside cowl in the affected area, shave cowl, add medium weight bi-directional cloth inside cowl on top of cotton flox layer and surrounding area for structural support, fill outside with micro as needed, add extremely light cloth on outside of cowl for final dressing (sorry I don?t know the weight but it looks like you could make clothes out of it).
2) Apply multiple layers of medium cloth inside cowl to affected area, shave cowl, fill outside with micro as needed, add extremely light cloth on outside of cowl for final dressing.
I am partial to method one and prefer using micro balloons. Will this work OK? Other suggestion? Thanks guys. Man-o-man am I depressed.