Today's Message Index:
----------------------
1. 05:14 AM - Manuals (william sullivan)
2. 05:19 AM - Re: Engine running rough at 3400 RPM and above (Malcolm Ferguson)
3. 05:32 AM - Re: Engine running rough at 3400 RPM and above (Catz631@aol.com)
4. 05:39 AM - Re: Key West Regulator on 503 Rotax (Tom Jones)
5. 06:19 AM - You don't know what's inside? Well have a look. (Roger Lee)
6. 07:09 AM - Re: Re: Key West Regulator on 503 Rotax (Richard Girard)
7. 11:32 AM - Re: Manuals (rparigor@suffolk.lib.ny.us)
8. 06:11 PM - Re: 91X ignition shields (Noel Loveys)
9. 06:36 PM - Re: Out-dated? (Noel Loveys)
10. 10:19 PM - Re: Engine running rough at 3400 RPM and above (rparigor@suffolk.lib.ny.us)
Message 1
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- Fergus- The Rotax factory site still works, it's the other one that wen
t down.- All manuals are available at: www.rotaxflyingclub.com
-
- Still free.- Explore the site.
-
-------------------------
---------- Bill Sullivan
-------------------------
---------- Windsor Locks, Ct.
-------------------------
---------- Kolb FS 447
Message 2
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| Subject: | Re: Engine running rough at 3400 RPM and above |
If anyone pulls gearbox off, a must do is to check the torque on the
crankshaft gear. Requires a deep 41mm socket or 1and 5/8". Rotax
mechanic showed me a crankshaft that had the splines trashed by a loose
gear. Will produce vibrations you can't cure otherwise. Even gave me a
new belville washer in anticipation I would find mine loose - I did. He
had seen enough of them loose that a torque check was mandatory if the
gearbox was off. If below torque the nut must come off and a careful
check of the striations on the bellville washer will show if there had
been any movement. If any shine on the striations a new washer is a
must(and loctite). When swinging on the end of the torque wrench, I
remember thinking about the "agony" the little crankshaft locking pin
was going through.
Malcolm Ferguson
Message 3
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| Subject: | Re: Engine running rough at 3400 RPM and above |
Ron,
Thanks for your reply. It seems we may have captured this problem.
Yesterday (in 106 degree heat) we removed the Warp propellor and installed
the lighter Kiev and after much "tweaking " of the pitch were able to get a
nice 'turbine smooth" engine.
I hope this will last and that the Owner of the Paradise P-1 will be
happy. We (the AI and I) have sure worked hard to try and find out the reason
forthe vibration.(pitch,tracking checked out fine on the Warp)
The tech at Lockwoodstatet to me that they had had a similar problem on
another aircraft in the past. They almost tore an engine down trying to chase
it but as a last effort replaced the prop and that was it!
I intend on using my new balancer(thanks to Roger) to check out the Warp.
The mystery is how it occurred. The plane was on a cross country from
Montana to Pensacola, Fl and was running fine until over Mississippi and then the
vibration started.
We will probably pull the blades and look at the hub, blade ends. do a dye
penetrent check for cracks,etc
I am not totally convinced the prop is the problem but time will tell.
The only other time I have run into this type of a problem was on an
Aerotrec (former Euro Fox) based in the mountains of NC. The owner of the
aircraft had a rough runner at cruise and we did everything to smooth it but
nothing worked. The plane only had 40 hrs since new and everything was spot on
!
(carb sync, cable movement,swivel nuts,ignition,etc) I told the owner that
the only thing left was the prop but neither one of us could believe that was
the problem. It was new out of the factory properly pitched,etc.
I had to return from my vacation in NC and could no longer help him. He
called the factory and they came down, replaced the prop and problem solved.
Seems this was one of 3 that were defective. So, it does happen.
Dick Maddux
912UL
Milton,Fl
Message 4
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| Subject: | Re: Key West Regulator on 503 Rotax |
> As I said, I run a capacitor of this size on my Key West regulated 582 for the
reasons stated, "to flatten voltage" (I guess this is Austro German manual speak
for cleaning up the regulator output. :-} ). Adding a second layer of protection
to protect the Key West is just the icing on the cake.
Rick, I know what you mean about the Rotax manual translation. Sometimes it is
not readily apparent what it is saying.
My key west seems to be operating well to charge the battery. My kit fox is pretty
bare bones. The only electrical accessory is the starter. My radio is a
hand held not hardwired to the planes electrical system.
I did notice more that normal static from received transmissions last flight but
attributed it to the sender having a bad radio. I will install the capacitor
if that continues. Thanks for the suggestion.
--------
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=307908#307908
Message 5
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| Subject: | You don't know what's inside? Well have a look. |
Hi Guys,
I just happen to get a hold of a Rotax fuel pump and a Rotax oil pressure sender
and I just couldn't resist the urge to explore. So out comes the saw and presto
the guts are exposed.
If you look close on the oil pressure sender you can see a plunger just under the
center of the main arm and when pressure pushes on it it in turn moves the
arm, which is held down by a spring until the pressure pushes and that moves the
rheostat lever which changes the resistance which is then calibrated for your
oil pressure gauge. Damn this is hard to follow.
The next pictures are of a Rotax fuel pump. Once the housing is removed you can
see an inner plate that has a screen mounted to it and that screen went up into
the outer chamber of the pump. The diaphragm separates the two outer chambers
where they meet the pump aluminum mount. (It is where the gold metal meets
the aluminum.) The fuel is sucked into the inner chamber by the motion of the
diaphragm and as the diaphragm pushes back up the one way valve that the screen
sits on closes and the fuel is then forced out the
output side of the pump. There is another picture of just the diaphragm still in
the aluminum pump housing. The inlet to the pump is the larger of the two nozzels
mounted on the pump. The fuel out nozzle is the smaller of the two nozzles.
If none of this makes any since, it didn't to me either and I typed it.:unsure:
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=307910#307910
Attachments:
http://forums.matronics.com//files/cut_rotax_fuel_filter_743.pdf
http://forums.matronics.com//files/cut_rotax_oil_sender_175.pdf
Message 6
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| Subject: | Re: Key West Regulator on 503 Rotax |
Tom, Happy to help. You can repay me if you wish by taking a flight over the
ridges in to the Yakima River Valley.
I lived on the west side of the Cascades for 28 years. Yeah, I was one of
those dreaded 206ers. :-} When I got my private ticket my flying club
required a mountain checkout ride with an instructor to be able to take a
club airplane through Snoqualmie pass over to Ellensberg. That checkout was
the only time I ever made it. I always wanted to make that flight up over
the Umptanum (sp?) ridges and passes. I thought a return trip through White
Pass back out to Centralia would be a lot of fun, too. Now that I've moved
back to Kansas I probably won't ever get to do it. Oh, well.
Hope you have fun with the Kitfox, it's almost as cool as a Kolb Mk III. :-}
Rick
On Sun, Aug 8, 2010 at 7:39 AM, Tom Jones <nahsikhs@elltel.net> wrote:
>
>
> > As I said, I run a capacitor of this size on my Key West regulated 582
> for the reasons stated, "to flatten voltage" (I guess this is Austro German
> manual speak for cleaning up the regulator output. :-} ). Adding a second
> layer of protection to protect the Key West is just the icing on the cake.
>
>
> Rick, I know what you mean about the Rotax manual translation. Sometimes
> it is not readily apparent what it is saying.
>
> My key west seems to be operating well to charge the battery. My kit fox
> is pretty bare bones. The only electrical accessory is the starter. My
> radio is a hand held not hardwired to the planes electrical system.
>
> I did notice more that normal static from received transmissions last
> flight but attributed it to the sender having a bad radio. I will install
> the capacitor if that continues. Thanks for the suggestion.
>
> --------
> Tom Jones
> Classic IV
> 503 Rotax, 72 inch Two blade Warp
> Ellensburg, WA
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=307908#307908
>
>
Message 7
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Hi Ferg
FWIW i uploaded all 914 manuals here:
http://www.europaowners.org/forums/gallery2.php?g2_itemId=81230
Ron Parigoris
Message 8
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| Subject: | 91X ignition shields |
The industry standard is to ground the shield at the source end only.
Grounding at both ends makes the coax an inductor.
Noel
-----Original Message-----
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of
rparigoris
Sent: August 6, 2010 9:08 PM
Subject: RotaxEngines-List: 91X ignition shields
<rparigor@suffolk.lib.ny.us>
The older schematics I have for my 914 shows to ground the ignition shutoff
wire shields at both ends, the engine side and panel side.
I think I may remember seeing Rotax rethought this?
Question is should I ground shields at both ends?
Thx.
Ron Parigoris
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=307813#307813
Message 9
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Try googleing ROAN or Ultralightnews. Both places have manuals online free.
Noel
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Fergus
Kyle
Sent: August 7, 2010 12:19 PM
Subject: RotaxEngines-List: Out-dated?
I must be in another world. I googled Rotax, got "The sky is the limit" and
that sent me to another URL but what happened to the Parts manuals? Am I no
longer worthy of service or must I join and pay for them now?
Any advice particularly welcome........
Cheers, Ferg
Message 10
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| Subject: | Re: Engine running rough at 3400 RPM and above |
Hi Dick
Here is a nice rundown of some causes of viabration:
http://www.rotaxservice.com/rotax_tips/rotax_vibration.htm
Ron Parigoris
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