sands1926
Posts: 6
Joined: 12/10/2003
From: Marietta , OH, USA
Status: offline
|
Hey J-3 I will give you the 4c ryobi wt after I get it tuned up. It's running MUCH better after an hour of tinkering. There are some great recomendations for tuning the ryobi on this site. I E-Mailed DougT for information on what he had done to the Ryobi engine. He said to locktite all of the cylinder to crankcase bolts. I can see that this could be a problem because of the vibration. He also suggested using a lighter muffler. As far as modifications, I drilled out the main jet to .0160, as per Doug's findings. You can definately see the difference with the larger hole. Before the exhaust flames were a blue colour, now they are Orange- Yellow, but no smoke. I am planning on making a straight pipe for the exhaust, and will post the pictures when its done. Also, my engine was leaking like a 6-71 Detroit Diesel around the oil pan, and have ordered a new gasket from outdoor distributors. I understand that the engine that I am tinkering with is the generation II engine. Ryobi is producing a Generation III engine and from what I understand it is a better engine. I think the trimmer series is 1079r? I would try to get this one.
|
Printable Version
All Forums >> RC Airplanes >> Giant Scale Aircraft - General >> Tree Hopper 
Tree Hopper - 
. I am going to make another engine mount so the engine is farther away from the aluminum mounting plate (so the oil can be checked and changed) otherwise you have to take the engine off of the plane to check the oil. Also, on the next engine mount I am going to make provisions to attach the nose gear. I have also considered machining an oil pan out of a block of 6061, then you could put an oil drain plug in the bottom and an oil fill on the side. It would also be cool if the oil fill plug on the side had a sight glass. 
