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1. 10:21 PM - Re: Re: Rotax 914 Turbo Warning Lights (Joel Milloway)
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| Subject: | Re: Rotax 914 Turbo Warning Lights |
What if the overflow bottle was mounted on the cockpit side of the firewall where
it was visible at all times?
On May 28, 2014, at 2:04 AM, Ivor Phillips <ivor.phillips@ntlworld.com> wrote:
>
> 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,
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>>>>> Forums!
>>>>> Admin.
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>>
>>
>>
>>
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