Today's Message Index:
----------------------
1. 01:05 AM - Re: Re: Rotax 914 Turbo Warning Lights (Ivor Phillips)
2. 01:41 AM - Re: 912 only putting out 12.5 volts (David Joyce)
3. 01:51 AM - Re: 912 only putting out 12.5 volts (GTH)
Message 1
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| Subject: | Re: Rotax 914 Turbo Warning Lights |
I see what you are say David but in my case it works well, my Expansion bottle
is set high in the centre of the firewall and has a positive head of pressure
back to the filler cap,
Twice I have had small leaks, one from a hose clip before changing to the spring
clamp type and once from a bottom hose bleed nipple that I had fitted,
Both times I was aware of the coolant loss long before it became critical,
I take your point that with a burst hose it probably wouldn't react quickly enough
but thats were my water temperature sender with voice activated Dynon shouting
high temperature in my ears would get my complete attention,
Regards
ivor
Sent from my iPad
> On 27 May 2014, at 14:58, "David Joyce" <davidjoyce@doctors.org.uk> wrote:
>
>
> Ivor, It is not often I disagree with you, but I would guess that a leaking or
burst hose will let fluid out and air out of/in to the radiator system without
producing sufficient suction to empty out the overflow bottle, so that you
could boil without your level sensor saying anything. On the other hand boiling
the coolant is something that is very noticeable in air - you get blue fluid
all over the screen - experienced when I was trying to do a 5 min full power
climb to satisfy the LAA with one of my early model props.!
> Regards, David
>
>
> On Tue, 27 May 2014 10:41:43 +0100
> Ivor Phillips <ivor.phillips@ntlworld.com> wrote:
>> I don't quite agree David, if unbeknown to you one of your hoses/ connections
developed a leak when airborne you would be unaware until the level dropped
below the pressure cap bottle,
>> Once it had done so it would effectively stop circulating through the radiator
and your temperature would start climbing upwards, The sensor is a couple of
grams at most and IMO would give me a heads up long before it got critical,
My expansion bottle is centre of the firewall as high as possible so cannot be
seen without removing the top cowl, I of course visually check it but on a long
flight it nice to know that nothing untoward is happening,
>> For people interested in the sensor I used its a DE4 PPS 10 A01. Website
>> http://www.deeter.co.uk/products/float-switch-liquid-level-sensors-overview/40-series-horizontal-liquid-level-sensor-float-switch
>> Regards
>> Ivor
>> Sent from my iPad
>>> On 26 May 2014, at 11:19, "David Joyce" <davidjoyce@doctors.org.uk> wrote:
>>> Alan, For my money it doesn't really matter what level the fluid is in the
bottle as long as the level in the header tank is OK, and I assume you check that
frequently as part of your preparation for flight. The bottle is just there
to make any fluid pushed out by thermal expansion recoverable as I see it. Why
add weight and complication? regards, David Joyce, G-XSDJ
>>> On Mon, 26 May 2014 09:35:12 +0100
>>> Ivor Phillips <ivor.phillips@ntlworld.com> wrote:
>>>> Hi alan
>>>> I drilled into the side of the plastic expansion bottle that Rotax supplied,
I put her midway so the level would need to drop to minimum before the sensor
triggered,
>>>> I will try and turn up the type of float sensor I used from my records and
let you no,
>>>> It's a simple wiring job once you are through the firewall,
>>>> Regards
>>>> Ivor
>>>> Sent from my iPad
>>>>> On 26 May 2014, at 08:51, "Alan Carter" <alancarteresq@onetel.net> wrote:
>>>>> Hello Ivor.
>>>>> Looks like Lydd is going to become more active know Manston is closed.
>>>>> I would like to fit an indicator the same as you have done, sounds a good
idea, is there something you can drill and attach to the filler cap.
>>>>> Can you give some info on this.
>>>>> Regards.
>>>>> Alan
>>>>> Read this topic online here:
>>>>> http://forums.matronics.com/viewtopic.php?p=423797#423797
>>>> Un/Subscription,
>>>> http://www.matronics.com/Navigator?RotaxEngines-List
>>>> Forums!
>>>> Admin.
>> Un/Subscription,
>> http://www.matronics.com/Navigator?RotaxEngines-List
>> Forums!
>> Admin.
>
>
>
>
Message 2
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| Subject: | Re: 912 only putting out 12.5 volts |
Dennis, have you checked a direct voltage at the battery
to compare? My newly fitted MGL EMS showed only about
11volts, but the battery voltage was 12.9 and there was an
adjustment in the set up program that allowed me to make
the two read identically.
Regards, David Joyce, G-XSDJ
On Tue, 27 May 2014 18:56:19 -0700
"dsingleton" <dsingleton@aol.com> wrote:
><dsingleton@aol.com>
>
> My grand Rapids unit shows 12.5 volts. Goes down to 12.3
>with radio and transponder on. landing light or strobes
>take it below 12.0. Installed new regulator( Kawasaki)
>and new battery. Still persist. Any Ideas ??
>
> --------
> Dennis Singleton
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=423891#423891
>
>
>
>
>
>
>
>Un/Subscription,
>http://www.matronics.com/Navigator?RotaxEngines-List
>Forums!
>Admin.
>
>
>
Message 3
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| Subject: | Re: 912 only putting out 12.5 volts |
David Joyce a crit :
> <davidjoyce@doctors.org.uk>
>
>
> Dennis, have you checked a direct voltage at the battery to compare?
> My newly fitted MGL EMS showed only about 11volts, but the battery
> voltage was 12.9 and there was an adjustment in the set up program
> that allowed me to make the two read identically.
+1
Also please give additional information :
- Was your electrical system performing well before ?
- Or is it a new or modified installation, etc. ?
- Is a description of schematics of your power circuit available ?
- Have you checked that your actual installation is in accordance with
the intended schematics ?
- Did you check every connection ?
- Etc..
Best regards,
--
Gilles
http://contrails.free.fr
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