RE: [mogtalk2] Heater Control Valve 2005 Aero 8 now pH
...Depends on how clear is a lingo-whatsit fluid Cheers, TC.David. _ From: Owen Jenkins [mailto:o...@osjl.co.uk] Sent: 30 May 2012 13:17 To: mogtalk2 Subject: Re: [mogtalk2] Heater Control Valve 2005 Aero 8 now pH pH is a measure of the hydrogen ion concentration in an ionic liquid (usually, but not necessarily, a water-based fluid). It is log to the base 10 of the reciprocal of the hydrogen ion concentration., or minus log base 10 of the hydrogen ion concentration (mathematically the same thing), the hydrogen ion concentration being measured in moles. If the liquid is neutral, it should be 7.0, since the solubility product of hydrogen ion and hydroxide ion in pure water at STP is 10 to the power -14 and these two must be exactly in balance for the solution to be neutral. Is that now as clear as a lignosulphonate drilling fluid? Cheers, Owen. - Original Message - From: Richard L Smith mailto:greystonespr...@btconnect.com greystonespr...@btconnect.com To: mogtalk2 mailto:mogtalk2@listbox.com mogtalk2@listbox.com Sent: Wednesday, May 30, 2012 1:00 PM Subject: Re: [mogtalk2] Heater Control Valve 2005 Aero 8 but I've forgotten my O level physics - what is pH please? Not physics David, chemistry! Google is your friend! Richard S View posts on The Mail Archive http://www.mail-archive.com/mogtalk2@listbox.com/ https://www.listbox.com/member/?; 186 Modify Your Subscription http://www.listbox.com _ No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2178 / Virus Database: 2425/5032 - Release Date: 05/29/12 --- View posts on The Mail Archive http://www.mail-archive.com/mogtalk2@listbox.com/ [http://www.mail-archive.com/mogtalk2@listbox.com/] Modify Your Subscription: https://www.listbox.com/member/?member_id=22459785id_secret=22459785-4a39ddf8 Powered by Listbox: http://www.listbox.com
Re: [mogtalk2] Heater Control Valve 2005 Aero 8 now pH
It's commonly known as mud in the drilling business. Cheers, O. - Original Message - From: david.birch1...@talktalk.net To: mogtalk2 Sent: Wednesday, May 30, 2012 1:24 PM Subject: RE: [mogtalk2] Heater Control Valve 2005 Aero 8 now pH ...Depends on how clear is a lingo-whatsit fluid Cheers, TC.David. -- From: Owen Jenkins [mailto:o...@osjl.co.uk] Sent: 30 May 2012 13:17 To: mogtalk2 Subject: Re: [mogtalk2] Heater Control Valve 2005 Aero 8 now pH pH is a measure of the hydrogen ion concentration in an ionic liquid (usually, but not necessarily, a water-based fluid). It is log to the base 10 of the reciprocal of the hydrogen ion concentration., or minus log base 10 of the hydrogen ion concentration (mathematically the same thing), the hydrogen ion concentration being measured in moles. If the liquid is neutral, it should be 7.0, since the solubility product of hydrogen ion and hydroxide ion in pure water at STP is 10 to the power -14 and these two must be exactly in balance for the solution to be neutral. Is that now as clear as a lignosulphonate drilling fluid? Cheers, Owen. - Original Message - From: Richard L Smith greystonespr...@btconnect.com To: mogtalk2 mogtalk2@listbox.com Sent: Wednesday, May 30, 2012 1:00 PM Subject: Re: [mogtalk2] Heater Control Valve 2005 Aero 8 but I've forgotten my O level physics - what is pH please? Not physics David, chemistry! Google is your friend! Richard S View posts on The Mail Archive http://www.mail-archive.com/mogtalk2@listbox.com/ Modify Your Subscription -- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2178 / Virus Database: 2425/5032 - Release Date: 05/29/12 View posts on The Mail Archive http://www.mail-archive.com/mogtalk2@listbox.com/ Modify Your Subscription --- View posts on The Mail Archive http://www.mail-archive.com/mogtalk2@listbox.com/ [http://www.mail-archive.com/mogtalk2@listbox.com/] Modify Your Subscription: https://www.listbox.com/member/?member_id=22459785id_secret=22459785-4a39ddf8 Powered by Listbox: http://www.listbox.com
Re: [mogtalk2] Heater Control Valve 2005 Aero 8
Mike I work for Eaton and I am on training with some of the electrical and vehicle group next week and will see if anyone can get me a direct contact Colin Shearring On 27 May 2012, at 08:18, Mike Lynch (GMail Account) wrote: From: Mike Lynch [mailto:mike.mikelynch.ly...@gmail.com] Sent: 26 May 2012 09:44 Subject: Fwd: Heater Control Valve 2005 Aero 8 Hi All, A friend in South Africa has a 2005 Aero 8. The electronically controlled heater control valve has failed and is currently bypassed. He has asked the agent in South Africa with no success and I have asked our Morgan dealer in the UK if they can check with MMC. Currently the status with MMC is that the valve is on back order as the component is no longer manufactured – so still waiting an alternative. The name on the white label on the part says 'Eaton' with a number 354-69. I was wondering if anyone could shed some light on the component and a possible source to obtain a replacement. If in the UK I can get it and take it out to South Africa next time I go. (I have more photos that I could send off group) Kind regards Mike Lynch E17 MOG Le Mans Green +4 2009 View posts on The Mail Archive http://www.mail-archive.com/mogtalk2@listbox.com/ Modify Your Subscription Heater Valve 2.jpgHeater Valve 1.jpg --- View posts on The Mail Archive http://www.mail-archive.com/mogtalk2@listbox.com/ [http://www.mail-archive.com/mogtalk2@listbox.com/] Modify Your Subscription: https://www.listbox.com/member/?member_id=22459785id_secret=22459785-4a39ddf8 Powered by Listbox: http://www.listbox.com
Re: [mogtalk2] Heater Control Valve 2005 Aero 8
Rainwater is always acid, as it has carbon dioxide dissolved in it. It can also have oxides of sulphur and nitrogen from the burning of fossil fuels, internal combustion engines, volcanoes, the action of lightning etc. The rainwater I collect for my garden has a pH of 6.5, typically. Lower when Icelandic volcanoes erupt. It is quite instructive to read the pH at source on bottles of mineral water. Deeside water, bottled about ten miles from here, has a pH at source of 6.1. If you measure what's in the bottle, it varies. This latter is true of all bottled water. Some bottled water can have a pH at source as high as 8.0. Pure water, if you do a pukka job of demineralising it, should have a pH of 7.0 at STP. Leave it exposed to the air and it will drop, typically, to around 6.7 or so as it dissolves acid gases from the atmosphere. Water from your dehumidifier will also be slightly acid. If you boil it, you get the gases out and the pH should be much closer to 7.0, when cool. Now store it in full, stoppered bottles and, if you're lucky, it will stay neutral. In theory. If you don't get algae growing in it. One of the other problems you may get, where you have hoses clamped onto corrodible metal, is crevice corrosion. It could well be the main issue here. If you are relying upon maintaining a passive film for corrosion inhibition, you'll be out of luck. Most passive films require oxygen. That gets eaten up in the initial corrosion, now there's no oxygen to regenerate the passive film, so you get an auto-catalytic corrosion reaction, with the area between hose and valve containing an increasingly acid fluid, with the metal under the hose acting as the anode in a corrosion cell and dissolving, while the metal exposed to the free fluid acts as the cathode. Have a look and you'll see that the valve nozzle appears to have corroded from the outside (in contact with hose) inwards. Following recommended fluid mixtures and regular maintenance should minimise the risk of problems like this occurring. Which reminds me... I used to be good at changing hoses fairly frequently. Can't say I've been as attentive in this area in recent years as once I was. Meanwhile, if he really can't source a replacement and this one still works, but for the failure of the stub pipe nozzle, I'd be inclined to see if I could fit a new stub pipe to replace the badly corroded one. Then flush the system properly and fill with the Morgan-recommended, low-electrical conductivity, inhibited cooling mixture. Regards, Owen. - Original Message - From: Martyn J Culling To: mogtalk2 Sent: Sunday, May 27, 2012 5:12 PM Subject: Re: [mogtalk2] Heater Control Valve 2005 Aero 8 Good point Owen. Many people think, it won't freeze, so I don't need antifreeze and forget the stuff is choc full of corrosion inhibitors. Pure water I think, is naturally slightly acid, but most tap water has lord knows what dissolved in it and can be either acid or alkali. The trike runs antifreeze for the inhibitors - along with distilled water! (By product of de-humidifier). rgds Martyn On May 27 2012, Owen Jenkins wrote: What's he been running in the cooling system? It should never have corroded like that if he'd had sufficient corrosion inhibitor it here. Being in S.A., I suspect he runs a very high water content and hasn't thought much about what else ought to be in there. With mixed metal systems, you can't do that. It may be closing the stable door after the horse has bolted, but if he ever finds a replacement, he needs to make sure he's following some sensible guidance on anti-corrosion measures, otherwise it will happen again. Regards, Owen. --- View posts on The Mail Archive http://www.mail-archive.com/mogtalk2@listbox.com/ [http://www.mail-archive.com/mogtalk2@listbox.com/] Modify Your Subscription: https://www.listbox.com/member/?member_id=22459785id_secret=22459785-4a39ddf8 Powered by Listbox: http://www.listbox.com
