---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Fri 05/06/16: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:19 AM - Re: Southco Fasteners (spcialeffects) 2. 07:40 PM - Re: Rotax Engine Troubleshooting (jonathanmilbank) 3. 11:13 PM - Re: Re: Rotax Engine Troubleshooting (Pete Lawless) ________________________________ Message 1 _____________________________________ Time: 11:19:54 AM PST US Subject: Europa-List: Re: Southco Fasteners From: "spcialeffects" Thanks very much gentlemen for all your input and suggestions Read this topic online here: http://forums.matronics.com/viewtopic.php?p=455932#455932 ________________________________ Message 2 _____________________________________ Time: 07:40:43 PM PST US Subject: Europa-List: Re: Rotax Engine Troubleshooting From: "jonathanmilbank" It's long after midnight and I can't sleep, so an ideal opportunity to do some uninterrupted email composing. What better than joining in with Bud's initiative? Here are a few thoughts: When I first installed my current and renovated engine, it proved impossible to get it to run smoothly throughout the rev range, even though the ignition was working well and the carbs were supposedly balanced with a proper balancer. Eventually both were opened and a very rare problem was revealed. One of the sliding "pistons" had above the diaphragm a spring which had lost much of its elasticity. Replacing the springs inside both vacuum chambers completely solved that problem. In my experience, if you believe that the carbs aren't balanced, then check that both throttle arms which have the cables linking them to the throttle lever are all the way back at their closed positions with the idle screws screwed fully out of the way so as not to be touching the arms. If they are moving exactly together when you start advancing the throttle, then the balance will be nearly correct and only slight adjustment might be needed. This assumes that there aren't other problems like air leaks. A couple of people including a good friend have sent their little black box ignition control units (solid state) to an address in the Netherlands to be rebuilt seemingly with improved electronic components. It cost my friend about 350 from the UK for both units including delivery etc. He is delighted with the result, claiming that his engine feels much smoother. So no need to throw away your old faulty CDI's. I would dearly like to see an improvement to the starter sprag clutch to make it last much longer. I think that an average life for this item in the 912S engine of around 500 hours and a replacement cost of over 500 not including labour is a disgrace! There was a slight weep of oil from two of the cylinder head rocker covers, so I took out the O-rings and boiled them in water for 15 minutes. After replacing them the leak was only a little less, so I ordered a new set of O-rings. These were no better so I wonder what to do next. A large difference in the "mag" drops was solved by raising the needles in the carburettors one notch to make the mixture ritcher. Now there is almost no difference to be seen, which ties in well with my experience on another large radial-engined aircraft having a cockpit mixture control. Someone else was using waterless coolant and didn't like it, so I've always used 50/50 glycol/water with the higher pressure radiator cap and found no undue problems with cooling. Having said that, it's a good idea to ensure that the oil cooler gets the full intended airflow through it and that air can't escape through poor ducting which would allow it to bypass the cooler. In my experience excellent propeller balancing can be achieved by balancing the whole propeller hub/blades/spinner assembly together off the aircraft using a static balancer. Off to bed now. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=455941#455941 ________________________________ Message 3 _____________________________________ Time: 11:13:16 PM PST US Subject: Re: Europa-List: Re: Rotax Engine Troubleshooting From: Pete Lawless Hi Jonathan You don't happen to know what the "address in the Netherlands" is do you? Thanks Pete G-RMAC Classic #109 On 07/05/16 03:39, jonathanmilbank wrote: > > > A couple of people including a good friend have sent their little black box ignition control units (solid state) to an address in the Netherlands to be rebuilt seemingly with improved electronic components. It cost my friend about 350 from the UK for both units including delivery etc. He is delighted with the result, claiming that his engine feels much smoother. So no need to throw away your old faulty CDI's. > ------------------------------------------------------------------------------------- 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.