Today's Message Index:
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1. 05:15 AM - Re: 912ULS Coolant (C_Pickett)
2. 07:09 AM - Re: 912ULS Coolant (Roger Lee)
3. 08:23 AM - Re: Re: 912ULS Coolant (Ollie Washburn)
4. 08:31 AM - Re: 912ULS Coolant (Roger Lee)
5. 09:12 AM - Re: Re: 912ULS Coolant (rparigor@suffolk.lib.ny.us)
6. 09:24 AM - Re: question regard oil mixture and temp. 503 (Arksey@aol.com)
7. 04:03 PM - Re: question regard oil mixture and temp. 503 (Roger Lee)
8. 04:14 PM - Re: question regard oil mixture and temp. 503 (lucien)
9. 04:22 PM - Re: 912ULS Coolant (Roger Lee)
10. 05:25 PM - Re: question regard oil mixture and temp. 503 (Arksey@aol.com)
Message 1
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| Subject: | Re: 912ULS Coolant |
There was a thing on the SeaRey site a while back that Evans is flammable.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=258393#258393
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| Subject: | Re: 912ULS Coolant |
Evans can burn if brought to a high enough temp. If this gets to this temp then
you probably have bigger problems to worry about. If you worry about Evans igniting
then what are you going to do about your fuel and oil burning issue. Those
are far worse. Even 50/50 will burn. You can and should have your oil, fuel
and coolant lines in firesleeve. Usually if Evans burns it is already involved
in a fire. There is a small chance if Evans where to hit a hot exhaust pipe
in a small enough quantity then it might flame , but does not sustain a flame.
IF it burst out all out once like splitting the line then it gets cooled below
its ignition temp.
So can Evans burn, yes, but so does everything else under the cowling.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=258415#258415
Message 3
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| Subject: | Re: 912ULS Coolant |
I have used Evans for over 500 hrs here in FL. and no problems. Also have
never added any.
Ollie
On Mon, Aug 17, 2009 at 3:22 PM, ronlee <rlee468@comcast.net> wrote:
>
> I have Evans coolant in my 912uls as per Rotax recommendation, unless they
> have changed. It's been in there for 150 hours and seems to perform well. I
> live in the desert South West where It is very hot! I have never had to add
> a drop since new.
> Isn't anyone else using Evens coolant in their engines and if they are are,
> are they having any negative results?
>
> --------
> Ron Lee
> Tucson, Arizona
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=258243#258243
>
>
Message 4
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| Subject: | Re: 912ULS Coolant |
Evans is a good product, unfortunately it doesn't work well in all applications.
Some of us just can't dump enough heat from under the cowling to keep temps
down. Some have very good cooling and Evans would be a very good choice.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=258432#258432
Message 5
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| Subject: | Re: 912ULS Coolant |
Hi C_Pickett
" There was a thing on the SeaRey site a while back that Evans is
flammable.
http://forums.matronics.com/viewtopic.php?p=258393#258393
"
I did some testing with burning aeroplane liquids
including Evans:
http://contrails.free.fr/engine_burn_baby_burn_en.php
As far as EvansI am going to use it in my 914
install,note though if you have a massave leak it won't be too much
of a concern, but a small shooting pinpoint leak aimed at the exhaust will
create a pretty impressive continuous fire that a 50/50 leak probably will
not.
Ron Parigoris
One other interesting fact is
shooting oil on hot exhaust will catch fire at a lower temperature than
100LL!
Message 6
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| Subject: | Re: question regard oil mixture and temp. 503 |
I have a question regarding oil mixture 2 cycle for 503. I use Pennzoil 2
cycle air cooled pre mix at 50-1 ratio...my question is this....if a person
increased the percentage of oil to the mixture and say ran a 40-1 ratio
would the engine run cooler or would there be no change in engine temps?
Reason for this question is that I have a friend who runs a 503 with oil
injection and his temps run a bit high...he has carb set up correctly, checked
everything we can think of, loaded the prop correctly and that is why I was
wondering if his oil to gas mixture was correct and hence the question. His
temps for both cht and egt are both in the high operating range. thanks in
advance. Jswan
do not archive
JIM SWAN
firestar ll, 503, N663S
Eaton Rapids, Mi. 48827
PH 517-663-8488 runway 2300' E & W (42-28.58N 084-44.69 W )
Message 7
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| Subject: | Re: question regard oil mixture and temp. 503 |
The more oil you use, you slowly lean out the fuel. It will run hotter as you continue
to add more oil because the number one cooling before your air cooling
is the fuel. You can add enough oil to seize an engine not to mention foul it
badly. Remember Rotax has 20-30 years experience and the reason for most engine
failures is the owner trying to be the Mfg or know more than all their millions
spent testing and years of experience. You may however need to richen the
fuel delivery in your case. Small adjustments will produce better and more accurate
results. EGT's are usually controlled by fuel if everything else is as
it is supposed to be.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=258534#258534
Message 8
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| Subject: | Re: question regard oil mixture and temp. 503 |
[quote="Arksey(at)aol.com"]I have a question regarding oil mixture 2 cycle for
503. I use Pennzoil 2 cycle air cooled pre mix at 50-1 ratio...my question is
this....if a person increased the percentage of oil to the mixture and say ran
a 40-1 ratio would the engine run cooler or would there be no change in engine
temps? Reason for this question is that I have a friend who runs a 503 with
oil injection and his temps run a bit high...he has carb set up correctly,
checked everything we can think of, loaded the prop correctly and that is why
I was wondering if his oil to gas mixture was correct and hence the question.
His temps for both cht and egt are both in the high operating range. thanks
in advance. Jswan
do not archive
JIM SWAN
firestar ll, 503, N663S
Eaton Rapids, Mi. 48827
PH 517-663-8488 runway 2300' E & W (42-28.58N 084-44.69 W )
> [b]
Agree with Roger, 50:1 is the correct ratio. I believe the oil injection runs 50:1
at high throttle settings, but leans the mix out a bit at low throttle to
idle, approaching 70:1. You don't need as much oil at the lower power settings.
If you really want to debug the oil injection, you could try disabling it (i.e.
pull out the plastic drive gear that fits into the end of the crank and plugging
the intake ports) and running 50:1 premix.
Too much oil leans the mixture as Roger says, because you have less fuel per unit
and more oil. It's as bad as not enough oil....
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=258542#258542
Message 9
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| Subject: | Re: 912ULS Coolant |
Hi Guys,
Here is some useful info on Evans and 100LL.
I'm a retired HazMat Fire Captain of 28 yeas so the MSDS sheets have been a way
of life.
Evans: (boiling point 370F)
Flash point 225F
auto ignition 1054F
Flammable limits 2.6 to 12.5%
100LL:
Flash point -51F
Auto ignition 840F
Flammable limits 1.2 to 7%
I'll take Evans over 100LL.
There are way too many things that burn well and ignite well under the cowl to
worry specifically about Evans. How many do a total rubber hose and rubber mount
replacement every 5 years?
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=258545#258545
Message 10
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| Subject: | Re: question regard oil mixture and temp. 503 |
Thanks Roger and LS for info...will pass on to my friend....your info
makes sense. thanks jswan
JIM SWAN
firestar ll, 503, N663S
Eaton Rapids, Mi. 48827
PH 517-663-8488 runway 2300' E & W (42-28.58N 084-44.69 W )
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