Hi Danny,
Cox International has the crankshafts and the propeller mounting screws (which are 5-40). Very reasonable pricing, fast shipping (from Canada). I have done multiple orders from them and absolutely no problems. There are two others, in particular, on ebay that I also have dealt with and they are good also. I would try Cox International in the Vendors Corner like Clint said (xenalook on ebay), they are the biggest suppliers of Cox parts right now, anywhere, and are remaking more new parts all the time. Plus they are listed here on Stunt Hanger.
![Grin ;D](https://stunthanger.com/smf/Smileys/classic/grin.gif)
I also suggest getting their piston resetting tool and their drive plate installation/removal tool for the propeller drive plates. Makes taking them on and off real easy with no damage.
Vendors Corner:http://stunthanger.com/smf/index.php?board=69.0Online Store:http://coxengines.ca/Crankshaft (best for you application):
http://coxengines.ca/product.php?productid=402&cat=26&page=5Prop screws:http://coxengines.ca/product.php?productid=101&cat=26&page=7Piston Setting Tool:http://coxengines.ca/product.php?productid=280&cat=41&page=2Drive plate removal tool:http://coxengines.ca/product.php?productid=305&cat=41&page=1Drive plate installation toolhttp://coxengines.ca/product.php?productid=305&cat=41&page=1The tools can be used over and over on all Cox .049 reed valve engines, plus they have a piston reset tool for the .020.
With running, the socket in the piston holding the connection rod loosens (flange spreads), and the setting tool tightens it back up. Restores the power, and can keep the con rod from coming through the top of the piston if it gets really worn. Just use a small hammer to tap the slotted rod which fits over the end of the rod and matches the socket in the piston head. There is a hole in the provided block which holds the piston square and allows the flange of the socket to be deformed back in to the original shape and the proper clearance is set. The socket starts to loosen up pretty quickly, but using the tool is a snap.
There is a de-varnishing brush available to remove carbon build up on the sleeve wall. This helps performance a bunch after the engine has been run a good bit. Very similar to a rifle barrel cleaning brush (but I do not know the caliber)
Look around the site and you will find all sorts of goodies. Great selection of Cox props, also!
Big Bear