Today's Message Index:
----------------------
1. 03:20 AM - Yet another engine option (Richard Girard)
2. 05:45 AM - Re: Yet another engine option (JetPilot)
3. 06:54 AM - Re: Re: Yet another engine option (Herb)
4. 06:57 AM - Re: Re: New Camera, Owyhee Ramblins (b young)
5. 10:21 AM - Re: Yet another engine option (lucien)
6. 02:45 PM - Re: Yet another engine option (JetPilot)
7. 03:24 PM - Re: Re: Yet another engine option (robert bean)
8. 03:49 PM - Re: Re: Yet another engine option (Herb)
9. 04:53 PM - Re: Horizontal stabilizer cable thimble worn (JetPilot)
10. 05:07 PM - Re: Re: Horizontal stabilizer cable thimble worn (John Hauck)
11. 07:09 PM - Power loss (Dana Hague)
12. 08:22 PM - Re: Re: Yet another engine option (Ellery Batchelder Jr)
Message 1
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Subject: | Yet another engine option |
A while back I offered a new Rotax B gearbox with a 2.00 to 1 ratio up for
sale and had no takers here on the list, but it did sell quickly to a fellow
in Thailand through eBay. Yesterday Prayote sent me a few pictures of the
installation. Thought it might be of interest. The engine is a Subaru EA71.
Rick Girard
Message 2
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Subject: | Re: Yet another engine option |
Very interesting !!!
I did not know a B box would take that kind of horsepower, I wonder if it will
last ?? I think I would have used a C box on an engine that big. Adapting
a Rotax gear box to an existing engine sounds like a great idea though. I would
like to see an inexpensive and reliable alternative to the 912-S developed...
But I'm not holding my breath, people have been trying to do that for many
years now with very little success.
Mike
--------
"NO FEAR" - If you have no fear you did not go as fast as you could
have !!!
Kolb MK-III Xtra, 912-S
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=254985#254985
Message 3
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Subject: | Re: Yet another engine option |
The EA71 engine is pretty ancient...60 hp at the best... Its
successor was the EA81...then the EA82... Herb
At 07:45 AM 7/28/2009, you wrote:
>
>Very interesting !!!
>
>I did not know a B box would take that kind of horsepower, I wonder
>if it will last ?? I think I would have used a C box on an engine
>that big. Adapting a Rotax gear box to an existing engine sounds
>like a great idea though. I would like to see an inexpensive and
>reliable alternative to the 912-S developed... But I'm not holding
>my breath, people have been trying to do that for many years now
>with very little success.
>
>Mike
>
>--------
>"NO FEAR" - If you have no fear you did not go as fast as
>you could have !!!
>
>Kolb MK-III Xtra, 912-S
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=254985#254985
>
>
>Checked by AVG - www.avg.com
>07/27/09 05:58:00
Message 4
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Subject: | Re: New Camera, Owyhee Ramblins |
I'm trying to come up with a design for a mount (thinking gear leg) that
will pan and tilt a little using bowden cables. Will take some R&D. Trick
is to keep it simple, light, and functional. May take a little while. Maybe
someone on the list already has the answer!
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
I saw a camera, think it was in wall mart, probably designed for low
dollar surveillance, but it had pan and tilt built in. I don't recall how
the controls worked. Or if it could be made to work on airplane power
without major electrical overhaul. Then it might be as easy as finding the
dc after the bridge rectifier. Maybe a person would not have to completely
reinvent the wheel.
Boyd Young
Message 5
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Subject: | Re: Yet another engine option |
JetPilot wrote:
> Very interesting !!!
>
> I did not know a B box would take that kind of horsepower, I wonder if it will
last ?? I think I would have used a C box on an engine that big. Adapting
a Rotax gear box to an existing engine sounds like a great idea though. I would
like to see an inexpensive and reliable alternative to the 912-S developed...
But I'm not holding my breath, people have been trying to do that for many
years now with very little success.
>
> Mike
The real issue with the B box is supporting whatever shaft the small drive gear
is fitted to - unlike the C box, there's no separate bearing for the drive shaft
to take the side loads. On the rotax motor the PTO crank bearings perform
this job, partly why the provision 8 motors are so hugely beefy at the PTO end.....
I'd imagine the builder came up with a seperate bearing for this?
Also, any info on the weight? Looks like it weights a ton just looking at the photo,
but then looks can be deceiving...
Looks like it flies tho!
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=255009#255009
Message 6
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Subject: | Re: Yet another engine option |
I have always liked the looks of the BMW engine conversion. I have seen this
on a Trike. my friend flys it, and it is smooth, powerful, with fuel injection
and seems to work very well and trouble free.
http://www.ultralightnews.com/engineinfo/bmwconversion.htm
http://www.ultralightnews.com/engineinfo/bmwconversion.htm
Mike
--------
"NO FEAR" - If you have no fear you did not go as fast as you could
have !!!
Kolb MK-III Xtra, 912-S
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=255031#255031
Attachments:
http://forums.matronics.com//files/bmwconversion_300.jpg
Message 7
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Subject: | Re: Yet another engine option |
Mike, what is the displacement of that engine?
BB
On 28, Jul 2009, at 5:44 PM, JetPilot wrote:
>
> I have always liked the looks of the BMW engine conversion. I
> have seen this on a Trike. my friend flys it, and it is smooth,
> powerful, with fuel injection and seems to work very well and
> trouble free.
>
> http://www.ultralightnews.com/engineinfo/bmwconversion.htm
>
> http://www.ultralightnews.com/engineinfo/bmwconversion.htm
>
> Mike
>
> --------
> "NO FEAR" - If you have no fear you did not go as fast
> as you could have !!!
>
> Kolb MK-III Xtra, 912-S
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=255031#255031
>
>
> Attachments:
>
> http://forums.matronics.com//files/bmwconversion_300.jpg
>
>
Message 8
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Subject: | Re: Yet another engine option |
Another Mike...has a BMW engine on his MkIII... He made an adapter
plate and used a c or e box as I recall.. Last I looked, it is for
sale on Barnstormers...Herb
At 04:44 PM 7/28/2009, you wrote:
>
>I have always liked the looks of the BMW engine conversion. I have
>seen this on a Trike. my friend flys it, and it is smooth, powerful,
>with fuel injection and seems to work very well and trouble free.
>
>http://www.ultralightnews.com/engineinfo/bmwconversion.htm
>
>http://www.ultralightnews.com/engineinfo/bmwconversion.htm
>
>Mike
>
>--------
>"NO FEAR" - If you have no fear you did not go as fast as
>you could have !!!
>
>Kolb MK-III Xtra, 912-S
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=255031#255031
>
>
>Attachments:
>
>http://forums.matronics.com//files/bmwconversion_300.jpg
>
>
>Checked by AVG - www.avg.com
>07/28/09 06:00:00
Message 9
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Subject: | Re: Horizontal stabilizer cable thimble worn |
John Hauck wrote:
>
>
> Mike B:
>
> 3/32"
>
> john h
> mkIII
Let me think, 2400 hours, flying in conditions I would not even taxi in, and carrying
more weight doing it than I ever have.... If 3/32 is good enough for
you, its good enough for me ! I put in my order for new cable today :)
Thanks John
Mike
--------
"NO FEAR" - If you have no fear you did not go as fast as you could
have !!!
Kolb MK-III Xtra, 912-S
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=255042#255042
Message 10
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Subject: | Re: Horizontal stabilizer cable thimble worn |
> Let me think, 2400 hours, flying in conditions I would not even taxi in,
and carrying more weight doing it than I ever have.... If 3/32 is good
enough for you, its good enough for me ! I put in my order for new cable
today :)
>
> Thanks John
>
> Mike
Mike B:
That's close. Actually, as of my last flight:
2,980.8 hours MKIII
412.3 hours 912ULS
Take care,
john h
mkIII
Message 11
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Had some engine trouble today which has me scratching my head...
Cuyuna ULII-02, Mikuni carb, airport near sea level, 80F and humid (don't
know the actual RH). Had a 300 main jet, EGT maxed out around 1100,
wouldn't hold rpm at 5500 cruise without playing the throttle, and
hesitation when advancing the throttle from cruise. After flying today, I
switched to a 290 main jet. EGT went up a bit, maybe 1150. Flew around
for awhile, around cloud level (2000') at low cruise (4500 rpm). Rpm's
wouldn't go up when I opened the throttle, then they dropped further to
idle, regardless of the throttle position. I thought perhaps the throttle
cable had broken, but it hadn't. Didn't think to check the fuel pressure
gauge. A shot of prime did nothing. After a while (as I was, of course,
gliding back to the airport) the rpm's picked up, first to around 4000,
then back to normal.
By the time I was down it was as if there was no problem. Plugs looked OK,
perhaps a bit on the lean side but not by much. At any rate, I put the 300
jet back in and dropped the needle from the middle to the second clip
notch. This put WOT at 1100 EGT again, and high cruise around 1150, with
no hesitation when the throttle was advanced. After some ground running, I
took off again and had no trouble.
I'm still not clear on what's going on. Not a lean seizure if it kept
running at idle for a minute or two. Fuel delivery problem? No evidence
of that but the fuel level in the tanks was somewhat low (I filled before
flying again). Carb ice? The conditions were certainly right and the
outside of the intake manifold was wet, but that's normal and these engines
aren't that susceptible to carb ice. At this point I just don't know.
-Dana
--
Politicians are those who deal with the problems which would not exist if
they didn't exist.
Message 12
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Subject: | Re: Yet another engine option |
I have?a EA-81 in my shop but I figure it would be to heavy for any Kolb at 240lbs
But I think its the best alternative (just My opinion) if you can use an engine
that weight ?
Ellery in Maine Back in the Saddle again
I did not know a B box would take that kind of horsepower, I wonder if it will
last ???? I think I would have used a C box on an engine that big.?? Adapting a
Rotax gear box to an existing engine sounds like a great idea though.? I would
like to see an inexpensive and reliable alternative to the 912-S developed...?
But I'm not holding my breath, people have been trying to do that for many years
now with very little success.
Mike
--------
"NO FEAR" -? If you have no fear you did not go as fast as you could
have !!!
Kolb MK-III Xtra, 912-S
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=254985#254985
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