---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Wed 10/19/11: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:50 AM - Re: Re: Toe vs Finger Brakes (Max Cointe) 2. 02:05 AM - Re: Heavy In-flight Vibration Riddle /The Solution /The Winner( (Remi Guerner) 3. 02:32 AM - Re: Re: Toe vs Finger Brakes (G-IANI) 4. 04:24 AM - Re: Re: Heavy In-flight Vibration Riddle /The Solution /The Winner( (Brian Davies) 5. 01:55 PM - Re: Aluminium Fuel Tube (Tony Renshaw) 6. 04:53 PM - Re: Aluminium Fuel Tube (GRAHAM SINGLETON) ________________________________ Message 1 _____________________________________ Time: 12:50:38 AM PST US From: "Max Cointe" Subject: RE: Europa-List: Re: Toe vs Finger Brakes Hi Jurgen, We probably have the same configuration: our cylinders are the toe's one moved up and arranged to be used by fingers (by the previous owner and builder). They are the Matco ones described in the chapter CBM 33T of the manual. The discrepancy between both are probably due to a lack of liquid in one circuit. You must use MilH5606 liquid (the best way to get it is from a JAR 145 maintenance workshop) to refuel but before you should verify first that it is what you have into (the color red/pink is significant I think). We've done that, not an easy task but we have now quite efficient breaking equilibrated on both wheels. To do it : remove the stopper of the cylinder visible on fig 1 of the CBM 33T of the manuals and replace it by a transparent pipe attached to a bleed nipple and push the liquid from a syringe via the bleed nipple on the brake caliper (visible on page 16 of the CBM 29T of the manuals). You're done when you see the liquid run on the pipe without bubbles. We also consider replacing the cylinders but there is a cost (in the Europa catalog the conversion kit is 1000+) and probably a bit a time to spend. So far we will stay with the actual configuration. Max Cointe F-PMLH TriGear Kit #560 912ULS Airmaster 400 hours -----Message d'origine----- De: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] De la part de europapa Envoy: mardi 18 octobre 2011 21:39 : europa-list@matronics.com Objet: Europa-List: Re: Toe vs Finger Brakes So, I am not so pleased with my finger brakes. But I am not sure that I have the right braking cylinders. My classic is a trigear conversion. I have seen in the builders manual there are two types of cylinders used. Both have got an external brake fluid reservoir. My cylinders haven't got one. The right cylinder begins braking much earlier but I'm getting used to it. Even the brakes are very weak. Maybe I should bleed them but have got no idea what kind of brake fluid the builders used. I jealously looked at the breaking cylinders of an race kart, they seemed to have the same size. Any suggestions? Regards Juergen Read this topic online here: http://forums.matronics.com/viewtopic.php?p=355453#355453 ________________________________ Message 2 _____________________________________ Time: 02:05:17 AM PST US Subject: Europa-List: Re: Heavy In-flight Vibration Riddle /The Solution /The Winner( From: "Remi Guerner" Hi Raimo, As an engineer who has been working two decades for a spark plug company, I want to add a few thoughts about your engine problem: A misfiring spark plug, cannot cause detonation. A single misfiring spark plug on one cylinder cannot cause the high level of vibration you have experienced. There are only two cases where a spark plug can cause detonation: the first one is if you are using a spark plug with a too hot heat rating. In this case, the nose core and the center electrode of the spark plug becomes red hot and ignite the fuel mixture even without a spark. The second case is when the spark plug is not torqued enough, becomes loose so that the heat transfer from the shell to the cylinder head is limited, causing the spark plug to become very hot. Both cases will cause preignition and possible detonation. I assume you were using the right spark plug type and that your blue spark plug was found to be tighten correctly. So in my opinion, the very hot blue spark plug you got was not the cause but the consequence of another phenomenon, probably preignition and/or detonation, caused by something else. The two main causes of detonation are: a too lean mixture and a too low octane fuel. This is were I would direct my investigation. Preignition and detonation may seriously damage all combustion chamber parts such as piston, rings, and valves. After such a problem I would ground the aircraft until the root cause is found, and I would carefully check the above parts for damage. Before removing the cylinder, I would perform a compression check and a boroscope inspection of the combustion chamber. Hope that helps. Remi Guerner F-PGKL Read this topic online here: http://forums.matronics.com/viewtopic.php?p=355494#355494 ________________________________ Message 3 _____________________________________ Time: 02:32:24 AM PST US From: "G-IANI" Subject: RE: Europa-List: Re: Toe vs Finger Brakes Jurgen As far as I can tell the advise from Max is correct. You almost certainly have a finger brake conversion which consists of moving the original foot cylinders. So filling is as Max describes. This was an early "fix" to get finger brakes and not supported by Europa. If filled and bleed correctly they work but early versions had short levers (not enough leverage) so breaking was limited. The simple solution (longer levers) works better but puts the handles very high (and they look unsightly). The Europa design improved the position and leverage but unfortunately the first master cylinder (Jama) proved to be very poor quality. The final redesign using Matco cylinders is much better. A large part of the cost of the Europa kit is for the moulding etc used to mount the master cylinder. The Matco cylinders are reasonably priced at about $90 each from Matco (but make sure you get the correct cylinders). If you are prepared to make you own mount and levers then you can convert at a reasonable cost. The documentation of Mod 65 shows the Jama setup and has not been updated. The main manual CBM 33T (3) does give details of the Matco setup (but it does contain some detailed error which have yet to be corrected). I suggest you get your existing setup working properly before you decide on an upgrade. If you decide to upgrade I will be happy to supply details of what others have done and the corrections for the Matco setup. Ian Rickard G-IANI XS Trigear, 300hours Europa Club Mods Specialist e-mail g-iani@ntlworld.com ________________________________ Message 4 _____________________________________ Time: 04:24:22 AM PST US From: "Brian Davies" Subject: RE: Europa-List: Re: Heavy In-flight Vibration Riddle /The Solution /The Winner( Following on from Remi's post, it might be worth following the recent blog on the Rotax Owners website. A Rotax 912 owner suffered a partial fuel blockage to one carb that only showed itself under high power conditions- and then only intermittently. In your case, if you have a partial fuel flow problem to one carb, reducing fuel flow by changing power settings could make the symptoms disappear. Worth checking? Regards Brian Davies -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Remi Guerner Sent: 19 October 2011 10:02 Subject: Europa-List: Re: Heavy In-flight Vibration Riddle /The Solution /The Winner( --> Hi Raimo, As an engineer who has been working two decades for a spark plug company, I want to add a few thoughts about your engine problem: A misfiring spark plug, cannot cause detonation. A single misfiring spark plug on one cylinder cannot cause the high level of vibration you have experienced. There are only two cases where a spark plug can cause detonation: the first one is if you are using a spark plug with a too hot heat rating. In this case, the nose core and the center electrode of the spark plug becomes red hot and ignite the fuel mixture even without a spark. The second case is when the spark plug is not torqued enough, becomes loose so that the heat transfer from the shell to the cylinder head is limited, causing the spark plug to become very hot. Both cases will cause preignition and possible detonation. I assume you were using the right spark plug type and that your blue spark plug was found to be tighten correctly. So in my opinion, the very hot blue spark plug you got was not the cause but the consequence of another phenomenon, probably preignition and/or detonation, caused by something else. The two main causes of detonation are: a too lean mixture and a too low octane fuel. This is were I would direct my investigation. Preignition and detonation may seriously damage all combustion chamber parts such as piston, rings, and valves. After such a problem I would ground the aircraft until the root cause is found, and I would carefully check the above parts for damage. Before removing the cylinder, I would perform a compression check and a boroscope inspection of the combustion chamber. Hope that helps. Remi Guerner F-PGKL Read this topic online here: http://forums.matronics.com/viewtopic.php?p=355494#355494 ________________________________ Message 5 _____________________________________ Time: 01:55:06 PM PST US Subject: Re: Europa-List: Aluminium Fuel Tube From: Tony Renshaw Hey Graham, I'm well underway with my cobra attachment but need to sort out t he venting before I bond it in. I have a sight gauge and the normal vent to p lumb into the cobra. I have the black grommets fittings, the ones you instal l in a hole in the cobra wall and then push a barb through with an elbow fit ting. Pity it doesnt come with a T piece, which would stop me having to inst all two, have you any specific suggestions as others have said you have a mo d, I havent heard of it unless it is the new standard up and over one, hope a lls well with you two, Reg Tony Renshaw Sent from my iPad On 21/09/2011, at 8:52 PM, GRAHAM SINGLETON wrote: > Tony > Tim's aluminium elbow is highly recommended, it stops a lot of the fuel sm ell in the cockpit, but make sure all the molding flash is carefully cut off the Cobra so that the rubber tube jopints sit snuggly and seal to the Cobra , and the tank stub > Graham > > > From: Tim Ward > To: tonyrenshaw268@optusnet.com.au; europa-list@matronics.com > Sent: Wednesday, 21 September, 2011 10:56:45 > Subject: Europa-List: Aluminium Fuel Tube > > Tony, > See attachment in fixing the aluminium pipe supplied by me. > It is purposely too long to allow for different fittings. > Position the =9Ccobra=9D first with your splash moulding. > Don=99t forget to reinforce the skin behind the cobra moulding with 3 layers of Bid to prevent deforming skin in hot temperatures (Aussie) > Cut it, the pipe, gradually back , a little at a time until you have the c orrect fit. > The rubber piping at each end allows for mistakes. > Once it is joined up then do the lay ups to the wall for the cobra. > Puts some blue foam at the back of the cobra to allow for the shape and ex pansion. > > > Cheers, > > Tim > > > Tim Ward, > 12 Waiwetu Street, > Fendalton, > Christchurch 8052 > New Zealand > > Ph; 03 3515166 > Mob; 0210640221 > > email; ward.t@xtra.co.nz > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= > ________________________________ Message 6 _____________________________________ Time: 04:53:25 PM PST US From: GRAHAM SINGLETON Subject: Re: Europa-List: Aluminium Fuel Tube I use AN fittings, not sure about rubber gromets. Wikk they degrade in Moga s?=0AWe're fine thanks, off to Turkey for a week 31st. Hope the Palestinian s aren't =0Anear where we're going!=0AGraham=0AGRaham=0A=0A=0A=0A__________ ______________________=0AFrom: Tony Renshaw =0ATo : "europa-list@matronics.com" =0ASent: Wednesday , 19 October, 2011 21:51:40=0ASubject: Re: Europa-List: Aluminium Fuel Tube =0A=0A=0AHey Graham, I'm well underway with my cobra attachment but need to sort out the =0Aventing before I bond it in. I have a sight gauge and the normal vent to plumb =0Ainto the cobra. I have the black grommets fittings, the ones you install in a =0Ahole in the cobra wall and then push a barb t hrough with an elbow fitting. Pity =0Ait doesnt come with a T piece, which would stop me having to install two, have =0Ayou any specific suggestions a s others have said you have a mod, I havent heard =0Aof it unless it is the new standard up and over one, hope alls well with you =0Atwo, =0AReg=0ATon y Renshaw =0A=0ASent from my iPad=0A=0AOn 21/09/2011, at 8:52 PM, GRAHAM SI NGLETON =0Awrote:=0A=0A=0ATony=0A>Tim's al uminium elbow is highly recommended, it stops a lot of the fuel smell in =0A>the cockpit, but make sure all the molding flash is carefully cut off t he Cobra =0A>so that the rubber tube jopints sit snuggly and seal to the Co bra, and the tank =0A>stub=0A>Graham=0A>=0A>=0A>=0A>=0A>=0A>=0A____________ ____________________=0AFrom: Tim Ward =0A>To: tonyrensha w268@optusnet.com.au; europa-list@matronics.com=0A>Sent: Wednesday, 21 Sept ember, 2011 10:56:45=0A>Subject: Europa-List: Aluminium Fuel Tube=0A>=0A> =0A>Tony,=0A>See attachment in fixing the aluminium pipe supplied by me.=0A >It is purposely too long to allow for different fittings.=0A>Position the =9Ccobra=9D first with your splash moulding.=0A>Don=99t f orget to reinforce the skin behind the cobra moulding with 3 layers of =0A >Bid to prevent deforming skin in hot temperatures (Aussie)=0A>Cut it, the pipe, gradually back , a little at a time until you have the =0A>correct f it.=0A>The rubber piping at each end allows for mistakes.=0A>Once it is joi ned up then do the lay ups to the wall for the cobra.=0A>Puts some blue foa m at the back of the cobra to allow for the shape and =0A>expansion.=0A> =0A> =0A>Cheers,=0A> =0A>Tim=0A> =0A> =0A>Tim Ward,=0A>12 Waiwetu Street, =0A>Fendalton,=0A>Christchurch 8052=0A>New Zealand=0A>=0A>Ph; 03 3515166 =0A>Mob; 0210640221=0A>=0A>email; ward.t@xtra.co.nz=0A>=0A> ==== ====== =0A>href="http://www.matronics.com/Navigator?Europa-L ist">http://www.matronics.com/Navigator?Europa-List=0A> ====== ==== =0A>ums.matronics.com">http://forums.matronics.com =0A>== ======== =0A>http://www.matronics.com/contribution">http:// www.matronics.com/contribution =0A>============= ====================== =0A>=0A ============== =0A ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.