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| Gas Engines and Power Discuss all aspects of giant scale power systems |
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02-09-2009, 12:43 PM
| #662 (permalink) | ||||||||||||||||||
| Bad-ass Super Contributer!   Join Date: Jun 2008 Location: Tacoma, WA Age: 48
Posts: 489
 |  Re: CRRC Pro GF26I
I replaced both halves of the crankcase and both crankshaft bearings and used bearing lock. I also did a mod to the propshaft to make it run more true, less vibration is much easier on the crankshaft, bearings and crankcase.
__________________ Jody Valley View RC | ||||||||||||||||||
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02-16-2009, 11:03 AM
| #664 (permalink) |
| Will fly for food   Join Date: Jan 2009 Location: Bellevue WA
Posts: 69
| Re: CRRC Pro GF26I
Well the 3rd CRRC pitts style muffler failed in less than one flight. What muffler are you guys using on your CRRC 26 engines?
Last edited by davidjensen; 02-17-2009 at 02:40 PM. |
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02-16-2009, 12:45 PM
| #665 (permalink) |
| I saw the poo waterfall  Join Date: Jan 2008 Location: Antioch, Tennessee, USA Age: 18
Posts: 8,418
| Re: CRRC Pro GF26I
I'm using the pitts muffler. If your stock one keeps breaking, you should try cutting the pipe shorter to reduce stress.
__________________ -Anderson S. The epitome of a microwave society. |
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02-16-2009, 07:26 PM
| #666 (permalink) |
| Bad-ass Super Contributer!  Join Date: Aug 2006 Location: Egg Harbor City, NJ Age: 40
Posts: 1,105
 | Re: CRRC Pro GF26I
I never even mounted the stock muffler. I used the pitts from day one and never had an issue.
__________________ . . . . . "What We do in Life...Echoes in Eternity"... |
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02-18-2009, 03:25 PM
| #667 (permalink) |
| Flyin' Around  Join Date: Jun 2008
Posts: 4
| Re: CRRC Pro GF26I
I have read all 56 pages and now I have a few questions. First I want to know if everyone thinks this is a sound engine. I read all the initial problem, but it seems they have worked most of the bugs out. Second, I have a Funtana X 100 that I want to put one in. My question is concerning the balance of the plane. It is a little heavier than a Saito. Is this gonna be a problem? This is my entry into gas airplane engines and I want to do it right the first time!
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03-08-2009, 12:30 AM
| #668 (permalink) |
| Will fly for food Join Date: Jan 2009 Location: Bellevue WA
Posts: 69
| Re: CRRC Pro GF26I
I think this should do the job. I JB welded the canister back onto the header and added the hose clamp to keep it together. The canister is glued to the engine box with RTV. I want to fly tomorrow.
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03-08-2009, 01:00 AM
| #669 (permalink) |
| I saw the poo waterfall Join Date: Jan 2008 Location: Antioch, Tennessee, USA Age: 18
Posts: 8,418
| Re: CRRC Pro GF26I
I'm not so sure about the JB Weld. It might hold, It might fail, but your clamp should take care of that.  My pitts muffler is still going strong. No signs of cracking.pmikey...I've seen this engine 3D a Funtana, so you should be fine.
__________________ -Anderson S. The epitome of a microwave society. |
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03-08-2009, 10:00 AM
| #670 (permalink) |
| Bad-ass Super Contributer! Join Date: Aug 2006 Location: Egg Harbor City, NJ Age: 40
Posts: 1,105
| Re: CRRC Pro GF26I
I never had an issue with my pitts muffler either. I had over a hundred flights on mine. Are you sure that the muffler can isn't vibrating on the engine box and acting like a hammer ? Just beating on the muffler the entire time the engine is running? Looks kind of close. 
__________________ . . . . . "What We do in Life...Echoes in Eternity"... |
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03-08-2009, 01:52 PM
| #671 (permalink) | ||||||||||||||||||
| I saw the poo waterfall Join Date: Jan 2008 Location: Antioch, Tennessee, USA Age: 18
Posts: 8,418
| Re: CRRC Pro GF26I
__________________ -Anderson S. The epitome of a microwave society. | ||||||||||||||||||
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03-08-2009, 03:36 PM
| #672 (permalink) |
| Will fly for food Join Date: Jan 2009 Location: Bellevue WA
Posts: 69
| Re: CRRC Pro GF26I
There was about 1/8+" clearence between the engine box and the muffler. I have tried to physically move the engine to see if I can make the muffler contact the wood and I cannot.
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