Speedy11(at)aol.com
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 Posted: Tue Sep 15, 2009 2:20 pm Post subject: Initial Baffle-To-Top-Cowling Fit |
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Which comes first - the chicken or the egg?
You will have to cut a lot more than expected from the baffling. Externally, the IO-360 and IO-390 are identical - according to Lycoming - so, the IO-360 baffling kit should fit. Consider getting some "Cowl Saver" silicone rubber for the top of your baffles. It is super slick on one side and will hold a better seal.
I can't say about the oil cooler because I remoted mine and it works great.
Stan Sutterfield
Do not archive
| Quote: | The RV-8's cowling done and fits like a glove. I started the baffling last night
and its coming along nicely. The fit on the sides and back are very good considering
the IO-390 installation (and the use of the IO-360 baffle kit). The
front baffling is completely different, however, and I'm slogging through the
custom fitting.
But here's my question. I decided to put the top cowling on top of the baffling
that I've got installed so far and I was shocked that the baffling appears to
be a good 1 to 1.5" too tall!! Is this because of the IO-390 or is that just
where Van's expects you to start in your "cutting-it-down-to-size" phase? That's
a lot of snipping and fitting and snipping and fitting. I was expecting
to have to trim some, but not over a inch...
Also, it looks like the over-sized oil cooler is going to fit nicely on the rear
baffle with only a little "modification". But I'm not sure if the back, upper
corner is going to clear the cowling. Since the cowling is sitting over a
inch high right now, I've got no way to really trial fit the oil cooler and check
for cowling clearance until I trim the baffling down. Worst-case I could
put a blister on the cowling for the rear, upper flange of the oil cooler, I suppose,
but that's kind of hokey. There is room to move the oil cooler in towards
the centerline about 1", but then the mount will no longer line up with the
flange on the outboard edge and will require more modifications.
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