Picco 80 FIRE
Looking to get a ballpark value on a Picco 80 FIRE aero engine with a header and tuned pipe. Not much info out there other than they were good engines and were from the 80's. This one is in good shape with strong compression. I do know they were shimmed for FAI fuel and you need to add shims for nitro. Anyone know the thickness recommended for the shim when using 10 to 20% nitro? Prop size and pitch? Jason
Posted on: 8/26/2011 3:18 PM by Author "jbirnsch" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10688526

RE: Are OS screws made of butter?
I have used this on stripped OS muffler screws: http://www.harborfreight.com/12-piece-screw-remover-and-quick-change-bit-set-95530.html You still have to be careful as this can easily take the rest of the center of the screw out leaving you with a cone shape stripped out screw. OS screws are made of cheese - butter would be an exaggeration[:D] I buy stainless metric screws at the local Tru-Value but they do not have the M3.5 screws that are used for the carb or the FSR mufflers. Jason
Posted on: 3/8/2011 10:04 PM by Author "jbirnsch" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10388205

RE: TD 049 Carb Body
I used a red one on a TD 051. The fit is tight and needed a wood block and a small hammer to get it on all the way. Not sure if it will ever come off. I used a thin film of high temp red RTV to seal around the back of the cnc carb body and the front retaining nut and then wiped down the excess RTV. Any air leaks can lead to an eratic needle setting. Jason
Posted on: 2/7/2011 11:19 AM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10318913

RE: .049 medallion throttle exhaust
I believe that the SPI cylinder is your problem. Instead of pulling in fresh air you are pulling in exhaust gas. SPI and exhaust restriction type throttling do not work. Put a sure start cylinder on it and it should run better. With the Galbreath head it may also be over compressed. Try more head shims and see if the RPM picks up. Jason
Posted on: 2/4/2011 6:33 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10313164

RE: Thread size on OS 10 needle valve assembly
dieselbloke, A 6-48 gun tap is is pretty common in civilised countries where they are allowed to have guns :) Jason
Posted on: 2/4/2011 4:15 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10312808

RE: Thread size on OS 10 needle valve assembly
I ran into this problem with a OS MAX 19 steel fin that was missing the NVA. I bought a OS10 NVA and could not find the thread size. I found that a 6-48 gun tap was a close fit. It is a little tight and had to work the NVA in to the carb body that was repaired but it worked. I believe it may be a M4 x. 5 or possibly M4 x .35 thread pitch but I could not locate one locally. I found the 6-48 gun tap at the hardware store for $2.50. Hope this helps. Jason
Posted on: 2/3/2011 8:10 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10310925

RE: Cox Olympic 15 Rear Rotary
I got it on that big auction site for $760. With it being a prototype and the fact that the auction ended just before midnight CST it should have gone for more. I really didnt think I has a chance at this as I placed the bid 4 seconds before it ended. A real find as I have never seen one before. Here is the description from the auction: I am selling off a very extensive model airplane collection for a friend. These are items from a life time of collecting engines. This offering is a very rare, only one of twenty made, OLYMPIC ball bearing rear drum valve glow speed engine. This engine was custom made by Bill Atwood, and given away at the 1960 Dallas Nats. This engine is owned by "Doc" Richard Nichol, who was a young man flying speed at the 1960 Nats. He must have made a good impression upon Bill Atwood, because he gave this engine to Doc to use and fly. Doc said he used it briefly, but newer and faster engines soon surpassed it. He added it to his extensive model engine collection, and it has been there collecting dust ever since. I will leave it to the new owner to clean. A very hard engine to find, and a must have for the Cox engine collector. Please email me with any questions. Item shipped USPS Priority mail. Jason
Posted on: 1/30/2011 10:19 AM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10300080

Cox Olympic 15 Rear Rotary
Here are pictures of my newest addition to my Cox collection. It is a prototype Olympic 15 Rear Rotary that was the predacessor to the Tee Dee engine series. One of about 50 made. More information here: http://www.mh-aerotools.de/airfoils/cox_olympic_15_rotary.htm More pictures here: http://www.rcgroups.com/forums/showthread.php?t=1377852 Jason
Posted on: 1/29/2011 5:45 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10298738

RE: Cox Reed Valve FAQ
Attached a scan of the 1990 Cox parts and price list. Jason
Posted on: 1/26/2011 7:02 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10291516

RE: Golden Bee's Wild Ride!
Do you happen to know the wing area and the weight of the Chineese ARF. Value Hobby has something with the same wingspan but the weight is 2 lb. Too heavy for an 049. Jason
Posted on: 12/15/2010 6:18 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10199739

RE: Cox TD RC 050 pricing
I was watching that auction also. Seems prices on stuff like this before Xmas are inflated on feebay. If I had these to sell I would start the auction on Dec 10 and let the bidding begin[:D] Jason
Posted on: 12/14/2010 5:05 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10197440

RE: Golden Bee's Wild Ride!
Anybody know what ARF that is and what the wingspan is? Looks like a lecky converted to glow. Jason
Posted on: 12/14/2010 3:27 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10197233

RE: VA 049 MK1
Larry, Did these also come with different size venturi? I found a little bag that has a smaller ID venturi and 4 copper shims. The shims look to be for the piston timing. Jason
Posted on: 12/11/2010 9:08 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10191482

VA 049 MK1
Any one know what the value of a VA 049 MK1 is worth? I got this in an engine lot a while back. Top of piston has a 5 scribed on it. I believe this is the piston size in relation the the cylinder as they were matched at the factory. The serial number is 495. It is missing the prop spinner. The mounting lugs do not have tool marks but I believe it may have been run in a clamp type test stand or washers were used. The bottom screw has tool marks probably to change the piston timing - neat feature. Super light engine. Looks to have a Globee plug and adapter. Jason
Posted on: 12/8/2010 8:50 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10185537

RE: Don't need no stinkin' after run oil!
Or use all castor fuel.
Posted on: 9/9/2010 1:22 AM by Author "jbirnsch" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9989868

RE: Cox Catalogs?
I have a 1988 or 89 Cox catalog. Including the pricing sheet. Every now and then they show up the the large auction site feebay. Jason
Posted on: 6/9/2010 12:34 AM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9791099

RE: 09 throttle?
How about a carb off of a AP .09? http://www.hobbypeople.net/gallery/212150.asp Jason
Posted on: 5/4/2010 1:37 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9709970

RE: 09 throttle?
I picked up the tarno on RCG classifides. The .074 muffler I bought from Cox International. I bought the NIB TD 09 on RCU classifides. Don't ask how much I have invested in this........ I could have bought a couple of NIB OS 10 FP's. Jason
Posted on: 4/30/2010 6:03 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9700923

RE: 09 throttle?
here is my version of a throttle on a cox td 09. It is a Tarno carb with a queen bee muffler. I had to turn the muffler base on my lathe for it to fit the 09 crank case base. I haven't run it yet. Jason
Posted on: 4/27/2010 10:18 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9694091

RE: Cox 010 – 020 – 049 - 051 Test Stand
I just bought one today. I have a few engines I want to test run and this thing will fit the bill nicely. Jason
Posted on: 4/22/2010 6:06 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9681247

RE: 3 Cyl 049 radial
BMatthews, The supercharger has sealed bearings and also has a tap to pressurise the fuel system. I am going to use a carb off of a OS 12CZR that I have for this engine. It should be large enough to supply this engine and has 2 needle valves. I want to turn a new front and back to eliminate the chance for leakage with the 2 piece front end. There is no need to have that much material there for support. I haveot figure out a way t mount this engine. I may use standoffs that screw into the back plate to a test stand. For the vane pump I believe you could not get by with a hack saw to cut the slits. You would need a slitting saw on a mill and a rotary table. Also what to use for the vane material? Graphite? Teflon? Sintered brass? Plus the extra weight of the pump. The supercharger looks to be built pretty light. The only weak spot I see is the belt breaking. Jason
Posted on: 2/26/2010 6:34 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9538386

RE: 3 Cyl 049 radial
I bought some aluminum stock today and am going to make a new front that will save some more weight. I am also going to make a new back cover and it will have a PTO with pully to drive a RB Innovations supercharger. I will use an off the shelf carb and most likely port that in between the cylinders. The output of the supercharger will go directly to the carb intake. The supercharger also has a tap to pressurize the fuel tank. Can't hurt to experiment. Once it starts off the prime the supercharger should be enough to keep it running by forcing air into the carb and pressurizing the crank case. The vane pump looks a little too difficult for my machining experience. What is the vane material made of?? We had a vane vacuum pump on the farm for milking machines. I understand how they work but looks difficult to build. IIRC the precision clearance between the sidewalls of the pump was critical. If the side got scored the pump would be shot. Jason
Posted on: 2/25/2010 9:00 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9535967

RE: 3 Cyl 049 radial
The engine has 3 compression strokes per revolution. I am uploading more pictures of the insides. even if I don't get it to run it is still a cool engine to mount on a static display. Jason
Posted on: 2/23/2010 11:53 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9530762

3 Cyl 049 radial
I bought this on feebay last week. It doesn't run for long and I knew that when I bought it. It is just cool. I know that is lost it's pumping action due to the multi cylinders in the same crank case at different timings. If I add a supercharger to the input do you think it would keep running? RB Innovations makes them for small glow engines. Basically forcing air/fuel mix into the CC should keep it running right? Jason
Posted on: 2/23/2010 7:16 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9529929

Medallion 09 Piston/cylinder
looking for a Cox Medallion pistion/cylinder set. The feebay has been unproductive lately for 09 parts. If anyone has one in there stash pm me. Nothing at select hobbies or Cox International either. Jason
Posted on: 2/17/2010 12:16 AM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9511158

RE: where can i get small engines?
The OS 10FP isn't a bad little motor. I have 4 of them. One is going in my Herr Cloudranger. Another is on the front of my CG Gentle Lady sail plane. You find these for sale now and then on the feebay also. Check the classifides as they show up now and then there also. Jason
Posted on: 2/11/2010 10:46 PM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9497189

RE: Old Hobby Shack Model
I have one of these in the basement but never flew it. Would it fly on the 049 as specified or should I put my OS 10FP on it? Jason
Posted on: 9/13/2009 2:50 AM by Author "jbirnsch" in the forum "Golden Age, Vintage & Antique RC"
http://www.rcuniverse.com/forum/fb.asp?m=9091236

RE: Queen Bee first aid...
True that is is a cylinder but it is made of soft metal and should be able to squeeze down some. Jason
Posted on: 8/28/2009 11:23 AM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9051837

RE: Queen Bee first aid...
Maybe this guy can help: http://www.rcgroups.com/forums/showthread.php?t=1102019 He claims to put the pinch back into engines by creating a set of dies and squeazing the cylinder. Jason
Posted on: 8/28/2009 10:26 AM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=9051713

RE: Strange Cox throttle
CP, With my throttle ring Nissan I could run lean if I was easy on the throttle. Yes these cars spent more time on the bench than on the track. I was racing against a bunch of 1/10 scale electric cars since I was the only gas car there. They were eating my exhaust until my axle seperated from a loose set screw[8|] I might thy this throttle on a sure start and see what happens. Jason
Posted on: 3/19/2009 1:09 AM by Author "jbirnsch" in the forum ""1/2 A" & "1/8 A" airplanes"
http://www.rcuniverse.com/forum/fb.asp?m=8593090