---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Mon 09/03/07: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:26 AM - Rotax Engine Installation (Hugh McKay III) 2. 10:02 AM - Re: Rotax Engine Installation (Dave G.) 3. 10:04 AM - 618 vs 582 (Dave G.) 4. 10:06 AM - Re: Rotax Engine Installation (Dave G.) 5. 04:59 PM - Oil foaming at altitude (Paul McAllister) 6. 07:03 PM - Re: Re: Nothing new then .......? At least the Jabiru can't boil ove () 7. 09:45 PM - Re: Oil foaming at altitude (Roger Lee) ________________________________ Message 1 _____________________________________ Time: 08:26:33 AM PST US From: "Hugh McKay III" Subject: RotaxEngines-List: Rotax Engine Installation This message is for Noel Loveys who monitors this forum. Noel, I am trying to get some photos of my 912 installation to you via email. The email address Im using is incorrect. The messages keep coming back to me. Please email me your correct email address and I will get the photos to you. Hugh McKay Allegro 2000 Rotax 912 UL N661WW hgmckay@bellsouth.net ________________________________ Message 2 _____________________________________ Time: 10:02:56 AM PST US From: "Dave G." Subject: Re: RotaxEngines-List: Rotax Engine Installation I came across a new Rotax 618 engine the other day at a good price. I also am going to be rebuilding my 582. Is the bottom end of a 618 the same as that on a 582? Please don't guess. ----- Original Message ----- From: Hugh McKay III To: rotaxengines-list@matronics.com Sent: Monday, September 03, 2007 12:24 PM Subject: RotaxEngines-List: Rotax Engine Installation This message is for Noel Loveys who monitors this forum. Noel, I am trying to get some photos of my 912 installation to you via email. The email address I'm using is incorrect. The messages keep coming back to me. Please email me your correct email address and I will get the photos to you. Hugh McKay Allegro 2000 Rotax 912 UL N661WW hgmckay@bellsouth.net ________________________________ Message 3 _____________________________________ Time: 10:04:13 AM PST US From: "Dave G." Subject: RotaxEngines-List: 618 vs 582 I came across a new Rotax 618 engine the other day at a good price. I also am going to be rebuilding my 582. Is the bottom end of a 618 the same as that on a 582? Please don't guess. ________________________________ Message 4 _____________________________________ Time: 10:06:04 AM PST US From: "Dave G." Subject: Re: RotaxEngines-List: Rotax Engine Installation Sorry Hugh, that last post had nothing to do with you, or Noel for that matter. I hit the send button before finishing editing. ________________________________ Message 5 _____________________________________ Time: 04:59:49 PM PST US From: Paul McAllister Subject: RotaxEngines-List: Oil foaming at altitude Hi all, I was wondering if there are any 914 drivers out there that some times operate in the 12,000~18,000 feet range. I am using Penzoil Motor Cycle oil and I suspect that it foams a bit. I was told the Valvoline Dura blend works better at these altitudes. Any first hand experience would be appreciated. Thanks, Paul --------------------------------- Boardwalk for $500? In 2007? Ha! ________________________________ Message 6 _____________________________________ Time: 07:03:20 PM PST US Subject: RE: RotaxEngines-List: Re: Nothing new then .......? At least the Jabiru can't boil ove From: Hi Bob Here is some info on Evans as it pertains to my decision to use it on 914 Monowheel Europa: http://contrails.free.fr/engine_burn_baby_burn_en.php Evans will run a little hotter than 50/50, but don't think it will be 40F (I have the general rise for Rotax powered Europas at hangar if you need). According to John Hurst (was Europa USA in Lakeland) think it was 3 to 3500RPM and full course into wind yielded best cooling on ground for Monowheel Europa. Option for extended ground operations, shoot some water from car windshield wiper pump onto radiator, could always inject into motor to help on climb out if not used on ground! I would use distilled water. Kim Prout said someone by him on West coast did this with good success. Supposedly this is good coating for 914 exhausts: http://www.performancecoatings.com/ I am going to coat my 914 exhaust (to keep some heat out of cowl), if you disassembled turbo you could do that too, but I am not, just going to wrap with blanket from Aircraft Spruce. The same company sells a heat dissipating coating I am going to have them do my 914 water radiator. I forget but think you changed intake on your cowl, you could tuft it and see what RPM and pitch with different wind angles yields best results. I will mention it, but am pretty certain you have radiators well sealed so any air is going through them instead of around. I have no practical experience, but try pulling enricher and see if it allows you to run cooler?? Ron P. ________________________________ Message 7 _____________________________________ Time: 09:45:08 PM PST US Subject: RotaxEngines-List: Re: Oil foaming at altitude From: "Roger Lee" Hi Paul, Down on this list somewhere is a post about 20 different oils. Yes some do foam a lot more than others. This is why Rotax made the oil level in the oil tank higher a few years back. If you are using 91 Octane fuel the majority of the time I would recommend Amsoil full synthetic, either 10-40 or 20-50 motorcycle oil. It is the least foaming of all the oils, even Mobile 1. If you are flying at 10K or higher then I hope you use 100LL as it is more stable and less volatile at high altitude. Then you need a semi synthetic to suspend the lead in 100LL. Golden Spectro 4 is another good choice for the anti-foaming.Here is the link to read about oils and what their properties are. You may have an oil you like, but this just helps in understanding what additives do and what oils seem to do better. http://www.amsoil.com/lit/g2156.pdf -------- Roger Lee Tucson, Az. 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