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worrybear(at)verizon.net
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 Posted: Mon Aug 06, 2007 5:40 am Post subject: Silent Cayuna, Ultrastar |
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As I wrote about three weeks ago, my UL202 went silent with a no problem off field landing. I thought it was time for an update.
The preliminary checks showed lack of spark, unfortunately in my quest to make sure everything else was OK I found the rear cylinder to have a fair amount of scuffing. With 177 hours on the top end and no knowledge of total time on the engine I don't think a rebuild is the smart thing to do.
My questions are, has anyone out there put a rotax on a Ultrastar? Does anyone have a used engine that would be appropriate? Or anyone have any interest in a Ultrastar without a motor?
Flying for the penniless dreamer Is taking it's toll on my mental health.
Dan Walter
Palmyra, PA.
Do not archive
[quote][b]
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Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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| Posted: Mon Aug 06, 2007 5:46 am Post subject: Silent Cayuna, Ultrastar |
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Try Central Snowmobile. They might be able to get you a fresh Cuyuna.
Or maybe these guys -
http://www.j-birdengines.com/
Richard Pike
MKIII N420P (420ldPoops)
[quote] ---
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Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing. |
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rowedenny(at)windstream.n
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| Posted: Mon Aug 06, 2007 6:08 am Post subject: Silent Cayuna, Ultrastar |
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[quote]
[quote] ---
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herbgh
Joined: 10 Jan 2006
Posts: 145
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| Posted: Mon Aug 06, 2007 8:28 am Post subject: Silent Cayuna, Ultrastar |
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Dan
I have seen Ultra Stars flown with Subaru EA 71 engines!! Flown smartly, I think a 582 would work!! Herb
On Mon, 06 Aug 2007 09:40:52 -0400 "DANIEL WALTER" <worrybear(at)verizon.net (worrybear(at)verizon.net)> writes:
[quote] As I wrote about three weeks ago, my UL202 went silent with a no problem off field landing. I thought it was time for an update.
The preliminary checks showed lack of spark, unfortunately in my quest to make sure everything else was OK I found the rear cylinder to have a fair amount of scuffing. With 177 hours on the top end and no knowledge of total time on the engine I don't think a rebuild is the smart thing to do.
My questions are, has anyone out there put a rotax on a Ultrastar? Does anyone have a used engine that would be appropriate? Or anyone have any interest in a Ultrastar without a motor?
Flying for the penniless dreamer Is taking it's toll on my mental health.
Dan Walter
Palmyra, PA.
Do not archive
[b]
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Ralph B
Joined: 14 Apr 2007
Posts: 367
Location: Mound Minnesota
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| Posted: Mon Aug 06, 2007 8:58 am Post subject: Re: Silent Cayuna, Ultrastar |
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My questions are, has anyone out there put a rotax on a Ultrastar? Does anyone have a used engine that would be appropriate? Or anyone have any interest in a Ultrastar without a motor?
Flying for the penniless dreamer Is taking it's toll on my mental health.
Dan Walter
Palmyra, PA.
I flew an UltraStar once that had a 377 Rotax on it. I didn't look at how he mounted it though.
Ralph
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Ralph B
Kolb Kolbra 912uls
N20386
550 hours |
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jb92563
Joined: 23 Mar 2007
Posts: 314
Location: Southern California
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| Posted: Thu Aug 09, 2007 12:27 pm Post subject: Re: Silent Cayuna, Ultrastar |
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I'm fixing a UL II-02 that had siezed and a little honing of the cylinder liner may work for the scuffing.
I just bought an engine honing tool for $20 and plan to run that through the seized cylinder liner after I had removed the aluminum from the siezed piston that stuck to the liner using Muriatic acid.
New Kimpex piston and rings is $45 plus you can get them oversized is you need to hone a lot more.
A new cast iron liner is about $100.
I also have a Cuyuna 430 as a backup and have seen them for sale from $200 used to $1200 new and are very common and easy to find parts for.
I also plan to open up the fins on the engine to allow more airflow to the PTO cylinder, which seized. They sell modified "Flow Thru" heads like this already so I figure I would save a bit and modify my own.
Ray
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Ray
Kolb UltraStar (Cuyuna UL-202)
Moni MotorGlider
Schreder HP-11 Glider
Grob 109 Motorglider
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