Today's Message Index:
----------------------
1. 05:00 AM - Re: Evans Coolant and SB-912-043-R2 (Thom Riddle)
2. 10:18 AM - Re: Evans Coolant and SB-912-043-R2 (D Wysong)
3. 11:29 AM - Re: Re: Evans Coolant and SB-912-043-R2 ()
4. 02:50 PM - Re: Evans Coolant and SB-912-043-R2 (Roger Lee)
5. 03:30 PM - Re: Evans Coolant and SB-912-043-R2 (Tommy Walker)
6. 05:02 PM - Re: Evans Coolant and SB-912-043-R2 (Roger Lee)
7. 05:04 PM - Re: Evans Coolant and SB-912-043-R2 (Gilles Thesee)
8. 07:51 PM - Re: Evans Coolant and SB-912-043-R2 (Tommy Walker)
9. 08:18 PM - Re: Re: Evans Coolant and SB-912-043-R2 (NYTerminat@aol.com)
Message 1
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| Subject: | Re: Evans Coolant and SB-912-043-R2 |
The spec. for the higher pressure radiator cap (1.2 bar vs .9 bar) is
in same service bulletin as the Evans coolant.... SB-912-043
Thom in Buffalo
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| Subject: | Re: Evans Coolant and SB-912-043-R2 |
Howdy Tommy,
No need for a new cap, just a new sticker for your old/stock cap that says
you're running Evans (... and to remind anyone working on your airplane NOT
to add water to the system). Regarding the cap, Evans says you can go to a
zero-pressure cap if using their fluid. However, Rotax prefers (per the
article below) that you continue to operate the engine under pressure with
the original cap.
Here's a preview link to a Sport Pilot article written by Lockwood that
explains all of the details. The page you'll be taken to gives the direct
URL to the article PDF or you can click the tinyurl link instead. The
article tells you where to get the $0.50 sticker, too.
http://preview.tinyurl.com/y56tml
Hope this helps!
D
---------------------------
On 1/13/07, RotaxEngines-List Digest Server <rotaxengines-list@matronics.com>
wrote:
>
> Time: 08:44:05 AM PST US
> Subject: RotaxEngines-List: Evans Coolant and SB-912-043-R2
> From: "Tommy Walker" <twalker@cableone.net>
>
>
> I have just about decided to use Evans Coolant instead of putting another
> gauge
> on my panel to monitor temp of the 50/50 mix on our 912ULS.
>
> I seem to remember reading somewhere that I should use another radiator
> cap with
> a different pressure setting. Can someone point me to that thread?
>
> Thanks,
>
> Tommy Walker in Alabama
> N8701 90%
>
Message 3
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| Subject: | Re: Evans Coolant and SB-912-043-R2 |
Hello D
"Evans says you can go to a zero-pressure cap if using their fluid."
Sometimes you need to know the whole story. It is true Evans says you can
run a zero pressure cap, but they also tell you that the cap needs to be
on the suction side of the pump. Rotax is not on the suction side. They
also want you to help out with the lower thermal conductivity of their
fluid compared to 50/50 by increasing pump volume or increase surface area
of radiator, and want not too much restriction in the radiator itself.
This is from the mouth of their research guy.
I am going to run a .9 on my 914.
Ron P.
Message 4
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| Subject: | Re: Evans Coolant and SB-912-043-R2 |
HI All,
I had Evans in my last 912s and I liked it. I really did not notice any temp. change.
I just put Evans in my new Flight Desin CT. I did a double flush and then
put in the Evans NPG+ and everything seems to be good. I have Evans in my Honda
Goldwing, too. In 3 years I have never had any issues and have been happy
with their product. I use the original cap when a have switched over and just
put the Evans sticker on the cap.
--------
Roger Lee
Tucson, Az.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=87407#87407
Message 5
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| Subject: | Re: Evans Coolant and SB-912-043-R2 |
Thanks all, that's a lot of good information. I have the .9 bar cap and I'm going
to use it.
This just occurred to me. Will the Evans coolant boil? I have my expansion tank
in line, but am not sure if it will be needed.
Thanks,
Tommy Walker in Alabama
--------
Tommy Walker
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=87417#87417
Message 6
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| Subject: | Re: Evans Coolant and SB-912-043-R2 |
Hi Tommy,
It should not boil. I have never had a problem. The boiling temp. is 375F. If your
coolant gets that hot you have much bigger issues to worry about.
--------
Roger Lee
Tucson, Az.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=87430#87430
Message 7
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| Subject: | Re: Evans Coolant and SB-912-043-R2 |
Tommy Walker a crit :
>
> Thanks all, that's a lot of good information. I have the .9 bar cap and I'm
going to use it.
>
> This just occurred to me. Will the Evans coolant boil? I have my expansion
tank in line, but am not sure if it will be needed.
>
>
Tommy,
It won't boil, but it will certainly expand.
What advantages do you actually see in the use of the Evans coolant
against 50/50 mix ?
Regards,
Gilles Thesee
Grenoble, France
http://contrails.free.fr
Message 8
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| Subject: | Re: Evans Coolant and SB-912-043-R2 |
Gilles,
Unless I misunderstood the following, I think that I am required to either switch
to Evans, or install a water temperature gauge in order to keep using 50/50
mix of water and glyco antifreeze.
Please see below. I have the entire document if you would like me to forward it
to you. Maybe I just misread it?
Release of REVISED MANDATORY Rotax Service Bulletins For Rotax 912 & 914 Engines
"...Understanding the benefits provided by conventional water - glycol coolant
in some applications, Rotax has now released a new revision of Service Bulletin
SB-912-043 / SB-914-029. With the release Service Bulletin SB-912-043 R2 /
SB-914-029 R2, use of conventional 50/50 water - glycol coolant is once again
allowed, provided certain conditions can be met.
In order for a 912 or 914 series engine to be safely operated with conventional
water - glycol coolant, SB-912-043 R2 / SB-914-029 R2 mandates that both cylinder
head temperatures AND coolant exit temperature must be monitored at all times...."
Gilles.Thesee(at)ac-greno wrote:
> Tommy Walker a crit :
>
> >
> >
> > Thanks all, that's a lot of good information. I have the .9 bar cap and I'm
going to use it.
> >
> > This just occurred to me. Will the Evans coolant boil? I have my expansion
tank in line, but am not sure if it will be needed.
> >
> >
> >
> >
>
> Tommy,
>
> It won't boil, but it will certainly expand.
> What advantages do you actually see in the use of the Evans coolant
> against 50/50 mix ?
>
> Regards,
> Gilles Thesee
> Grenoble, France
> http://contrails.free.fr
--------
Tommy Walker
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=87472#87472
Message 9
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| Subject: | Re: Evans Coolant and SB-912-043-R2 |
Tommy,
I believe you are right, I used the standard cap, labeled it with the Evans
label and yes you still need the overflow bottle for expansion if nothing
else.
Bob Spudis
In a message dated 1/13/2007 10:52:56 P.M. Eastern Standard Time,
twalker@cableone.net writes:
Gilles,
Unless I misunderstood the following, I think that I am required to either
switch to Evans, or install a water temperature gauge in order to keep using
50/50 mix of water and glyco antifreeze.
Please see below. I have the entire document if you would like me to
forward it to you. Maybe I just misread it?
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