Today's Message Index:
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1. 12:15 AM - Trimtab problems are history! (Alf Olav Frog)
2. 12:52 AM - Re: IO-390 engine use (Scott Farner)
Message 1
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| Subject: | Trimtab problems are history! |
Hi fellow RV-builders!
Hi RV-fellow builders!
I live in Norway and am building a RV-7. I've have discovered a GREAT tool for
bending soft metal.
It's a kind of a plier who makes EXACTLY 90 degree bends with PERFECT turnradius!
It's IDEAL for the trimtab, the tabs on the left elevator and other parts where
you need a bend.
The PERFECT trimtab can be done on FIVE MINUTES! (or maybe even less...)
I've posted pics of the plier in the Photo Share section today, however it'll take
a few days until the pics are posted I think.
The pliar was found in a tinsmith shop (tinman).
It's an old tool but SUPERB for the job!
Since it'e here in Norway, it also must be possible to find in the US or other
parts of the world.
I've also sent photos to Mr Bob Avery at Avery Tools, and maybe they'll start making
the tool?
Happy building (and bending!) builders.
Best regards Alf Olav Frog
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Message 2
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| Subject: | Re: IO-390 engine use |
--> RV7-List message posted by: "Scott Farner" <sfarner@gmail.com>
John,
I have an IO-390 in my -7A. I can't speak for performance numbers yet
(although wait a week and I'll see), but my installation is pretty
much done. I ran into three issues that were -390 specific.
First was the alternator bracket. I have the 60amp internally regulted
model from Van's and the supplied bracket didn't line up with the
flywheel. It was a pretty easy fix, though. I just flipped it around
and riveted on a new piece of angle for the alternator attach hole and
sliced the othere one off. It looks like Van's is selling an
alternator kit with a bracket that looks more like the one B&C sells
now, so this might not be a problem anymore.
The prop governor for the -390 is located up front, which is good and
bad. Good in that apparently it is easier to run the control cable,
but the bracket for holding it can be a bit of a challenge. Check out
www.io-390.com. There are a couple of examples of how it can be done.
The way I did it is on the contributions page.
The biggest headache (relatively speaking) though was the baffling. It
will take a little restructuring (at least it did for me) behind cyl
#4 as the barrels are physically larger than on the -360. Also, with
the prop gov up front, you'll have to do some chopping to get the
baffles up there to fit.
I didn't have any spacing or engine related cowling issues. I have
plenty of clearance between the cowling and exhaust with the -360
setup. All told, most of the issues were minor and should certainly be
worth the extra 10-15hp IMHO. We'll see though.
Scott
www.scottfarner.com
RV-7A - Prepping for inspection
On 9/16/06, J. Brunke <jdoody727@comcast.net> wrote:
>
> Dear listers,
>
> I am one of the many trying to figure out an engine for my RV7. I am
> interested in the IO-390 engine. If you have installed
> one of these on your airplane, I would be interested to hear if there are
> any installation problems compared to the
> IO-360 series (spacing, cowling attachment, etc) and also how your
> performance numbers look.
>
> Thanks in advance,
>
> John Brunke
> St. Charles, IL
> N767JB
> Tail almost
> completed.
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