---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Fri 08/26/05: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:04 AM - Re: Rotax 914 question? (William Daniell) 2. 05:59 AM - Re: Rotax 914 question? (ivor.phillips) 3. 07:13 AM - Re: Rotax 914 question? (William Daniell) 4. 08:25 AM - Re: Rotax 914 question? (ivor.phillips) 5. 09:07 AM - Re: Rotax 914 question? (William Daniell) 6. 12:18 PM - Re: Rotax 914 question? (Jeremy Davey) ________________________________ Message 1 _____________________________________ Time: 04:04:29 AM PST US From: "William Daniell" Subject: RE: Europa-List: Rotax 914 question? --> Europa-List message posted by: "William Daniell" In addition to this My turbo seized but not due to this - it seized from build up of carbon in the hot side - which I gather is pretty weird. After cleaning it worked fine. The guy who runs the shop here says that it is a result of reducing power quickly - and that to avoid this, on all turbos one should reduce power slowly. Will -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of ivor.phillips Subject: Re: Europa-List: Rotax 914 question? --> Europa-List message posted by: "ivor.phillips" You run the engine to reduce the turbo bearing temperatures, If you shut down quickly after working the engine hard there is a risk of turning the oil to carbon and destroying them over time, Once the engine is shut down the oil ceases to flow through the turbo bearings, Ivor phillips > I was also told that I should always let the engine run for at least 5 > mins before shut down ? > Any thoughts on this please? ________________________________ Message 2 _____________________________________ Time: 05:59:05 AM PST US From: "ivor.phillips" Subject: Re: Europa-List: Rotax 914 question? --> Europa-List message posted by: "ivor.phillips" Wil Was you using predominantly Avgas 100LL or Unleaded ? After many years working on turbo engines Both Petrol and diesel, I have had turbine`s go badly out of balance due to carbon build up, They makes a loud whistling noise, But never enough to seize, At least that's better than the waste gate seizing and causing a overboost, > My turbo seized but not due to this - it seized from build up of carbon in > the hot side - which I gather is pretty weird. After cleaning it worked > fine. Ivor ________________________________ Message 3 _____________________________________ Time: 07:13:15 AM PST US From: "William Daniell" Subject: RE: Europa-List: Rotax 914 question? --> Europa-List message posted by: "William Daniell" 100ll - because the premium mogas in Colombia where I live is only 91 octane. -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of ivor.phillips Subject: Re: Europa-List: Rotax 914 question? --> Europa-List message posted by: "ivor.phillips" Wil Was you using predominantly Avgas 100LL or Unleaded ? After many years working on turbo engines Both Petrol and diesel, I have had turbine`s go badly out of balance due to carbon build up, They makes a loud whistling noise, But never enough to seize, At least that's better than the waste gate seizing and causing a overboost, > My turbo seized but not due to this - it seized from build up of carbon in > the hot side - which I gather is pretty weird. After cleaning it worked > fine. Ivor ________________________________ Message 4 _____________________________________ Time: 08:25:27 AM PST US From: "ivor.phillips" Subject: Re: Europa-List: Rotax 914 question? --> Europa-List message posted by: "ivor.phillips" Thanks for that,! Another good reason to use unleaded if you can. Ivor Phillips XS486 London UK 100ll - because the premium mogas in Colombia where I live is only 91 > octane. > >> My turbo seized but not due to this - it seized from build up of carbon >> in >> the hot side - which I gather is pretty weird. After cleaning it worked >> fine. ________________________________ Message 5 _____________________________________ Time: 09:07:42 AM PST US From: "William Daniell" Subject: RE: Europa-List: Rotax 914 question? --> Europa-List message posted by: "William Daniell" Yup think so - the engine as I understand it is designed for European premium mogas -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of ivor.phillips Subject: Re: Europa-List: Rotax 914 question? --> Europa-List message posted by: "ivor.phillips" Thanks for that,! Another good reason to use unleaded if you can. Ivor Phillips XS486 London UK 100ll - because the premium mogas in Colombia where I live is only 91 > octane. > >> My turbo seized but not due to this - it seized from build up of carbon >> in >> the hot side - which I gather is pretty weird. After cleaning it worked >> fine. ________________________________ Message 6 _____________________________________ Time: 12:18:49 PM PST US From: "Jeremy Davey" Subject: RE: Europa-List: Rotax 914 question? --> Europa-List message posted by: "Jeremy Davey" Almost correct. It's intended to use European _standard_ mogas (95 Octane, often referred to confusingly as 'premium', but North American folks please we aware we measure Octane differently, quoting higher numbers for the same stuff). The _premium_ stuff (97 to 98, often called 'super') is not recommended for use in aircraft (some volatility issues at altitude, I believe). As an aside for the UK folks, rumours are currently rife that Shell is about to release V-Power here instead of the current Optimax - which means 99 or 100 Octane for your sports cars. Regards, Jeremy Jeremy Davey Europa Monowheel 537M G-EZZA Europa Club Vice-Chairman, Webmaster, PFA NC Representative PFA EC Member "If you can keep your head when all about you are losing theirs, then it is possible you haven't grasped the severity of the situation." Tail done Standard XS wings with mods underway CM installed in fuse (with airbrakes fittings) 1400 build hours to date Intended fit: Rotax 914 turbo, Airmaster CS fully-feathering prop Lots of lights, buttons, switches, gizmos, and alarms -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of William Daniell Subject: RE: Europa-List: Rotax 914 question? --> Europa-List message posted by: "William Daniell" Yup think so - the engine as I understand it is designed for European premium mogas -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of ivor.phillips Subject: Re: Europa-List: Rotax 914 question? --> Europa-List message posted by: "ivor.phillips" Thanks for that,! Another good reason to use unleaded if you can. Ivor Phillips XS486 London UK 100ll - because the premium mogas in Colombia where I live is only 91 > octane. > >> My turbo seized but not due to this - it seized from build up of carbon >> in >> the hot side - which I gather is pretty weird. After cleaning it worked >> fine.