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1. 11:53 AM - IO-240 ()
2. 12:26 PM - Re: IO-240 (Don Morrisey)
Message 1
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I am also interested in learning more about this engine, since I will be
installing it on my Rans S-16 in another year or so. I will tell you
what I have learned, with the caution that I am not expert, just passing
along my impressions:
1-Be careful with Warp Drive props with this engine. The Rans prototype
S-16 experienced delamination problems with Warp Drive. Nothing wrong
with the prop, per se, but apparently the power pulses of this engine
were causing too much forward/backward stress on the blades. Rans
switched to a Sensenich wood prop, which is more flexible in this
regime, and the problem subsided. The S-16 is a 150-160 mph cruise
airplane with this engine. May not be a problem with other type a/c.
Check with prop folks for more/better information.
2-Some parts for the engine are reportedly more expensive than similar
parts on other similar size engines. Could be because of low
production, compared to O-200, O-235, etc. I also understand the
cylinders and other parts are taken from the IO-360 (Continental)
design. Again, a somewhat low-production engine. Can anyone verify this?
3-I am looking into the Mattituck non-certified version. Still expensive
at about $19,000 vs. 24K for the certified version. Any other sources
out there?
4-Not very many used IO-240's on the market. The only production
aircraft using it that I know of are the Katana and the Liberty. Any
others?
5-There is a reported hard-starting problem with the IO-240, which is
rectified by installing either single or dual LightSpeed Engineering
electronic ignition module(s). Any experience here?
Good luck with your Kitfox. Again, my information is limited and may not
be accurate. If anyone can add to it or correct it, I would be very
appreciative.
S-16 Builder
Message 2
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I looked into this engine as well for my BushCaddy R-120 (135 mph never exc
eed). I ended up opting for a Lycoming O-235, primarily because the engine
builder I had selected had only done a half dozen of the IO-240's and I ca
n more than likely get my 110 mph cruise with the lower hp O-235.
He indicated parts were somewhat hard to find and elli1409's email sort of
reiterates this. My understanding is that the IO-240 is a good, reliable
engine. I would definitely order through Mattituck as they have made lots
of them and probably have a good availability of parts.
From: elli1409@bellsouth.netTo: continental-list@matronics.comSubject: Cont
inental-List: IO-240Date: Thu, 12 Oct 2006 13:53:05 -0500
I am also interested in learning more about this engine, since I will be in
stalling it on my Rans S-16 in another year or so. I will tell you what I h
ave learned, with the caution that I am not expert, just passing along my i
mpressions:
1-Be careful with Warp Drive props with this engine. The Rans prototype S-1
6 experienced delamination problems with Warp Drive. Nothing wrong with the
prop, per se, but apparently the power pulses of this engine were causing
too much forward/backward stress on the blades. Rans switched to a Sensenic
h wood prop, which is more flexible in this regime, and the problem subside
d. The S-16 is a 150-160 mph cruise airplane with this engine. May not be a
problem with other type a/c. Check with prop folks for more/better informa
tion.
2-Some parts for the engine are reportedly more expensive than similar part
s on other similar size engines. Could be because of low production, compa
red to O-200, O-235, etc. I also understand the cylinders and other parts a
re taken from the IO-360 (Continental) design. Again, a somewhat low-produc
tion engine. Can anyone verify this?
3-I am looking into the Mattituck non-certified version. Still expensive at
about $19,000 vs. 24K for the certified version. Any other sources out the
re?
4-Not very many used IO-240's on the market. The only production aircraft u
sing it that I know of are the Katana and the Liberty. Any others?
5-There is a reported hard-starting problem with the IO-240, which is recti
fied by installing either single or dual LightSpeed Engineering electronic
ignition module(s). Any experience here?
Good luck with your Kitfox. Again, my information is limited and may not be
accurate. If anyone can add to it or correct it, I would be very appreciat
ive.
S-16 Builder
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