Today's Message Index:
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1. 05:13 AM - 912 oil termostat or perhaps a heat exchanger ()
2. 06:03 AM - Re: 912ULS Oil thermostat (Catz631@aol.com)
3. 10:58 AM - Re: 912ULS Oil thermostat (paul wilson)
4. 12:38 PM - Re: Does it have a Clutch? (Thom Riddle)
5. 08:35 PM - Re: Re: Does it have a Clutch? (Les Goldner)
Message 1
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| Subject: | 912 oil termostat or perhaps a heat exchanger |
Les
Another possibility to get the oil temperature up fast
in a safe way is to install a heat exchanger between
the water and the oil flow. Because locally there has
been several successfull cases of using a small aluminum
"Laminova" type heat exchanger and no separate oil
radiator at all I decided to go for this too.
But the original water radiator need to be well placed
to begin with with sufficient air suck out to take the
extra heat load in summertime. Have no results yet but
can send a picture of my 701 heat exchanger installation
if you are interested.
rgrds
Max
Max Johansson, Helsinki,
just now installing a 912S in my 701SP
>On Sat, Mar 22, 2008 at 12:59 AM, Les Goldner
><lgold@quantum-associates.com> wrote:
>>
>> Although it was 60 degrees Fahrenheit today,
>> I still had to wait 15 minutes for my 100HP 912ULS oil
>> to get to 120F+degrees so that I could take off.
>> While waiting, it dawned on me that maybe I need to consider
>> a bypass thermostat for the oil cooler/radiator.
>> There is no mention of such a bypass in the Rotax
>> Installation Manual or in my Zenith 701 manual.
>> Have any of you installed oil bypass thermostats? Is this something
>> that I should consider adding, or will it just add another point of
>> potential failure that should be avoided?
>> Les
Message 2
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| Subject: | Re: 912ULS Oil thermostat |
Oil thermostats can be good things.Make sure you purge your oil system after
installation.I had the same problem on a Kitfox and have installed a set of
shutters at the oil cooler which are operated from a control in the cockpit.It's
a lot better than tape over the cooler but probably not as effective as the
thermostat.
Dick Maddux
**************Create a Home Theater Like the Pros. Watch the video on AOL
Home.
(http://home.aol.com/diy/home-improvement-eric-stromer?video=15?ncid=aolhom00030000000001)
Message 3
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| Subject: | Re: 912ULS Oil thermostat |
Here are several useful items for cold weather operation of the Rotax
that I have seen at various air shows
1) The much discussed oil thermostat which bypasses the cooler
2) Simple ball valves that do the same thing as (1)
3) Thermostat for the radiator. Most people use the BMW unit which is
designed to install in the Rad hoses.Custom machined housing for a
regular auto stat has also been seen.
4) Shutters on the radiator with pilot cockpit control.
5) Removable shutter for the oil cooler. Slide in custom grooves.
6) Duct tape over either or both the radiator or oil cooler.
Different solutions with the ingenuity of the builder.
Paul
Message 4
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| Subject: | Re: Does it have a Clutch? |
Les,
Look in a Rotax Parts Manual to find the part number and description. I believe
(as in not certain) the last three digits indicate various versions of prop shaft
depending upon whether or not it has accommodation for options like governor
for constant speed props or other variations, including which engine it is
for, as in 912UL/A/F/ULS/S or 914UL/F. I also think that the first three numbers,
in your case 887, indicate that the gearbox does have a clutch. The 888 series
do not have the clutch.
--------
Thom Riddle
N221FA Allegro 2000 912UL
N197BG FS1/447
--------------------
Believe nothing, no matter where you read it or who has said it, not even if I
have said it, unless it agrees with your own reason and your own common sense.
- Buddha
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=171999#171999
Message 5
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| Subject: | Re: Does it have a Clutch? |
Thom,
I did look at the parts list and Doc (is email is "Bill and Marsha") also
confirmed that my gear box has a clutch. I guess now I can break a prop or
two without destroying my crank shaft (maybe).
Thank you,
Les
> -----Original Message-----
> From: owner-rotaxengines-list-server@matronics.com
> [mailto:owner-rotaxengines-list-server@matronics.com] On
> Behalf Of Thom Riddle
> Sent: Sunday, March 23, 2008 12:36 PM
> To: rotaxengines-list@matronics.com
> Subject: RotaxEngines-List: Re: Does it have a Clutch?
>
> --> <riddletr@gmail.com>
>
> Les,
>
> Look in a Rotax Parts Manual to find the part number and
> description. I believe (as in not certain) the last three
> digits indicate various versions of prop shaft depending upon
> whether or not it has accommodation for options like governor
> for constant speed props or other variations, including which
> engine it is for, as in 912UL/A/F/ULS/S or 914UL/F. I also
> think that the first three numbers, in your case 887,
> indicate that the gearbox does have a clutch. The 888 series
> do not have the clutch.
>
> --------
> Thom Riddle
> N221FA Allegro 2000 912UL
> N197BG FS1/447
> --------------------
> Believe nothing, no matter where you read it or who has said
> it, not even if I have said it, unless it agrees with your
> own reason and your own common sense.
> - Buddha
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=171999#171999
>
>
>
>
>
>
>
> Photoshare, and much much more:
>
>
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