Author: johncclarkva@... Time: Sun Mar 14, 2004 2:09 pm PST Link
I am trying to fit the upper cowl. If I center the cowl in back and front,
the gap at the spinner widens from the left to the right (looking aft) (about
1/8 to 3/8+) and from the top to the bottom (about 1/4 to 3/8). I can skew the
aft end of the cowl about 1 in. to the right and even up the gap at the
spinner. But if I raise the front of the cowl to even the gap top to bottom, the
top edge of the cowl appears about 1/2 in high.
Is this normal, about as good as I can get, or did I goof somewhere? I am
going to measure the thrust line offset and re-set the bolts.
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Author: "Clay R" <clayr_55@...> Time: Sun Mar 14, 2004 5:56 pm PST Link
This is a very difficult area to fit. The engine thrust line is
offset, so there tends to be more space on one side of the gap than
the other. I also had a lot of trouble getting the front area
behind the spinner flat. (there was more space at the joint line
than at the top and bottom.)
I ended up making it look as good as possible, then filled with
epoxy, glass and filler behind the front top center of the cowl and
sanded off almost the entire original thickness of cowl along the
front side, to even the gap and flatten the entire top front area in
relation to the rest of the "circle."
As difficult as it is to do, make the spinner flush with the top of
the cowl, because the engine will sag somewhat with time.
-Clay
--- In RV-9A@yahoogroups.com, johncclarkva@c... wrote:
> I am trying to fit the upper cowl. If I center the cowl in back
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