Roger Lee Posted March 14, 2011 Report Share Posted March 14, 2011 Engine starting. Link to comment Share on other sites More sharing options...
CT4ME Posted March 14, 2011 Report Share Posted March 14, 2011 Clear prop....vrrrooommm... Link to comment Share on other sites More sharing options...
Admin2 Posted March 14, 2011 Report Share Posted March 14, 2011 corvette33 Posted 11 March 2011 - 02:57 PM I understand there is a mandatory replacement of hoses and rubber parts on the Rotax at 5 years? As a new owner can you bring me up to speed. Also what is the deal on the "soft start" module? Is it necessary? I understand both Rotax and Bully Hawk make one. Which would you reccomend and why? Thanks Jacques Posted 11 March 2011 - 04:25 PM here is the info http://ctflier.com/i...r-rubber-parts/ Rotax doesn't make a Soft Start.. They came out with the ''Advanced Start'' incorporated in the new engines. If you want to add on..you should [must ] go with the Soft Start from Bully Hawk or the Rotax dealers Roger Lee Posted 11 March 2011 - 04:40 PM Soft Start is a separate Mfg and makes the Soft Start after market add on. This is the less expensive way to go. Rotax incorporates their soft start system within the ignition modules. So to use the Rotax system you would have to buy both Rotax ignition modules which is good, but expensive. To answer your question, they are not mandatory, but absolutely make a difference. The 5 year rubber parts replacement is mandatory for all 2006 CTSW's or any SLSA with a Rotax 912 this year and if you have a 2005 CTSW and it hasn't been done then you are out of airworthy and need to get it done. Runtoeat Posted 12 March 2011 - 05:03 AM Hi Corvette33, I'm not sure if you have a new CT or purchased a used one? Your CT should have a library of all Rotax and Flight Design service bulletins that pertain to your aircraft. If your CT was purchased used, this list could be extensive, especially in regards to Rotax bulletins. You may already have this but it is best to have a library for all Flight Design and Rotax service bulletins pertaining to your specific aircraft. FD and Rotax has summaries and detailed documents of all service bulletins on their websites. As for this hose replacement, there is a great deal of information on this forum and the specific Rotax service bulletin for this is found here. Get out your wallet when it's time for you to do the hose replacement! corvette33 Posted 12 March 2011 - 06:58 AM Thanks for the replies. I recently purchased a 2007 CTSW, but have not yet taken delivery from the dealer. If this will need the hose replacement done next year I guess I might as well have it done before taking delivery. Does anyone know what an approximate price might be to have this completed? Also, I understand that the Bully Hawk soft start is available. Will I need a LOA to have it installed on My CT? From the videos I have seen on this product it would seem to be beneficial. Anyone have any experience with this product? Roger Lee Posted 12 March 2011 - 07:04 AM Hi Corvette, The Soft Start for a Rotax or the Rotax soft start style ignition modules are beneficial. It does make a difference. You would need an LOA from FD. Price may vary some between mechanics on the rubber replacement. Plan on somewhere in the neighborhood of $2500-$3200 depending on the mechanic, rates and if your CT has the thermostats. It's only once every 5 years because you can't pull over to the curb if any line breaks and loosing an oil line would be death for your $19K engine. Roger Lee Posted 12 March 2011 - 07:24 PM Oetiker clamp supply http://chadstoolbox.com/oetiker.aspx FastEddieB Posted Yesterday, 04:46 AM I had violent kick-back issues with my ROTAX-powered Sky Arrow. The Soft Start module definitely helped - a very worthwhile addition IMHO. Some description and photos here: http://ctflier.com/i...ch__1#entry2189 Jim Posted Yesterday, 01:02 PM FastEddieB, on 13 March 2011 - 03:46 AM, said: I had violent kick-back issues with my ROTAX-powered Sky Arrow. The Soft Start module definitely helped - a very worthwhile addition IMHO. Some description and photos here: http://ctflier.com/i...ch__1#entry2189 Any idea why some planes have it and some don't? I probably have 500 starts on my CT and don't remember it ever being a problem. Roger Lee Posted Yesterday, 05:30 PM Hi Jim, So far as I have been able to ascertain it is a function of the cold with the amount of charge in the battery. The lower the battery charge the worse it is and of course throw in a cold morning when things are a little stiffer and then you get the kick back. When I make sure my battery is at a complete and full charge even a cold morning is a good start. The ones with the kick back don't usually have the same problem in warm or hot weather. Jim Posted Yesterday, 06:47 PM I guess that would explain it. I've probably never started it below about 30F and if the plane sits longer than 2 weeks I put the charger on the battery. FastEddieB Posted Yesterday, 06:56 PM Jim, on 13 March 2011 - 04:02 PM, said: Any idea why some planes have it and some don't? I probably have 500 starts on my CT and don't remember it ever being a problem. Not sure. The Bullyhawk site gives an extensive list of things to look for. A fully charged battery certainly helps. My Sky Arrow has a pretty long run from the battery to the starter (battery in the nose, high-mounted engine), and that may cause some voltage drop. It also seems like once you've had it kick back so hard so many times, something starts to loosen up in the starter sprague clutch (I think), and that makes the problem even worse, in a vicious cycl... Jacques Posted Yesterday, 08:32 PM yep..the cold makes the difference...even with the lower compression 80 hp and a full charged battery. pre-warming the engine is the way to go. Jim Posted Yesterday, 10:25 PM I'd put money on the length of the battery cables. On a CT they are about 8". Runtoeat Posted Today, 05:53 AM Some thoughts on things I've found while starting my CTSW. The starter on all of our CT's has a sprage clutch. This allows overun of the engine flywheel gear to the starter gear when the engine starts, unlike automotive systems. This means that one can keep the starter engaged even after the engine "catches" and starts. I hold my ignition key on "start" until I am sure that the engine is fully started and running. This means holding on "start" for just one or more seconds longer after the engine catches. I have found that the throttle cannot be opened, even a small amount, or the engine will not start. As for my choke, I have found the "sweet spots" (two positions) where the engine will start in "partial" cold and where it will sta... Jim Posted Today, 07:33 AM Great advice about the sprage clutch. I suspected it had one based on the sounds it makes, but it's good to know for sure that it's safe to keep spinning the starter for a second or two if it's sluggish kicking over. Link to comment Share on other sites More sharing options...
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