RE: C S ignitions
Possibly this one? http://www.cncengines.com/
Posted on: 11/26/2011 4:29 AM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10829484

RE: recently bought a used spe 26
An extra 500 RPM can be had from a larger 11mm carb over the stock 9.5. Mine had a bad case casting that needed replacing. Original ignitions were "melody" I believe. BCMA sold them with the RCEXL.
Posted on: 11/11/2010 10:19 AM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10128655

RE: RC Exl Ignition Users
I always machine my magnet hub 1 mm (40 thou) bigger in diameter than the Sensor securing hub and this gives me a nice close fit. The ST G2300 below has the securing ring 1 mm under the standard prop hub diameter.
Posted on: 7/19/2010 3:45 AM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9873565

RE: 15cc Gas RCGF engine information thread
I have adapted a "nitro" muffler to this engine. Not run it yet. Has a much bigger "chamber" but much smaller outlet. I may make up a dual pipe outlet like the one in the pic (made for a G2300).
Posted on: 6/27/2010 9:05 PM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9830553

RE: G90 exhaust mounting hole distance
47mm spacing.3mm bolts. Port width = 25mm X 8mm height.
Posted on: 6/17/2010 3:14 AM by Author "Aussie Maddog" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9808469

RE: ASP 52FS From Glow to Gas with RCExcel Ignition
This is a sensor mount I did for a Super Tigre 2300. It is secured by two M3 grub screws and can be rotated to set your timing. If you have a 4mm diameter magnet, a 5/32 drill bit makes for a nice fit. I always drill a pilot hole all the way through the hub, but drill the 5/32 to the correct depth. I use CA to glue. You can dimple both sides of the hub, next to the magnet for more security if you like.
Posted on: 6/16/2010 3:55 PM by Author "Aussie Maddog" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=9807292

RE: MLD 28 won't keep running
Remove :Carb needles (high and low), Pump cover and membranes, Diaphragm cover and metering needle. Blow out passages with carb cleaner and look down the carb throat to see the spray coming through holes. Wouldn't be the first time swarf from manufacture got caught up inside. I take it ignition timing is correct? (28 BTDC) and it's a RCEXL system. XYZ's are notoriously poor. Good luck.....
Posted on: 4/28/2010 5:22 AM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9694634

RE: making my own glow engine,what materials for liner/piston
What about buying the piston/ring and making the sleeve. Pistons are relatively inexpensive and come with the piston pin and retainers ready for your rod. For a novice, this maybe the way to go and you would have a better chance of a reliable running engine. Make your own pistons later with the experience you have gained.
Posted on: 4/19/2010 5:40 AM by Author "Aussie Maddog" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9671793

RE: Spark advance question
correct. Generally full advance is at around 4000 RPM.
Posted on: 3/25/2010 11:38 PM by Author "Aussie Maddog" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=9612669

RE: Spark advance question
Yes 30 BTDC is the most. Start at 6-8 BTDC.
Posted on: 3/25/2010 11:31 PM by Author "Aussie Maddog" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=9612644

RE: Gas to glow conversions
Walbro carb WT-499 is made for alcohol fuels. This may be your best option.
Posted on: 3/25/2010 7:56 PM by Author "Aussie Maddog" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=9612001

RE: Where to get 9
Not exactly 9 inches but a reasonable price I thought ....... http://www.amr-rc.com/index.php?path=content&SUBSC=parts_wheels&SC=parts_wheels&page=parts_wheels
Posted on: 2/22/2010 10:17 AM by Author "Aussie Maddog" in the forum "Giant Scale Aircraft - General"
http://www.rcuniverse.com/forum/fb.asp?m=9525632

RE: hall sensor and magnet gap on SPE 40cc
The wrong side of the magnet could be facing the hall sensor. Hold the sensor upside-down and flick the magnet past it to see if you can get a spark.
Posted on: 2/3/2010 7:11 AM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9472465

RE: Walbro 694 vs 255C
The 12.7 is probably too big for a 26 (You may find transition issues) if not on a highly tuned engine like a Zenoah or other high end type. And the 9.5 too small. Restricting RPM by 500 to 1000. The 11.1 venturi walbro is probably the best allround size for a chinese 26. My SPE came with a 9.5 but I believe others had a 11.1 venturi's.
Posted on: 12/23/2009 11:47 PM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9355774

RE: SPE 26cc ignition timing 42 degrees?
A walbro with a 11mm venturi will help if you have the stock 9.5mm carb. I was getting 8300 on a SPC 16X8. It's chinese, the quality varies.
Posted on: 11/30/2009 4:42 AM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9291321

RE: What caused this?
Hello, This is exactly the spot where my SPE 26 crank broke. If I remember correctly, BCMA stated in their instructions that this could happen if an engine was mounted too solidly and my engine was in a strong and solid test mount. I replaced the crank and fitted a home made soft mount and have not had a problem since. The marks on the crank web could be machining marks. They are made quite roughly. Regards, Rhett
Posted on: 6/17/2009 12:34 AM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8858300

RE: hobby city EI unit
The Rcexl is also available at hobbycity(Sensor sold separately), but I don't know which plug it's for. Hi-model sell a Rcexl unit (with sensor) as a spare part for the DL-50, CM-6 plug. CH ignitions sell the Rcexl unit in the USA and I imagine will offer service/advice/warranty. With the Chinese companies, you take your chances. My XYZ ignition fits a CMR6A plug (10mm) and BPMR6F plug (14mm) and as previously mentioned, you can purchase the Turnigy 50cc CM-6 unit. Giving myself a plug here[:)], I have a setup kit for the Rcexl ignition in the Gas engine classifieds
Posted on: 5/1/2009 3:28 AM by Author "Aussie Maddog" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=8730992

RE: hobby city EI unit
I have run both XYZ (the blue one above) and the Rcexl (generally a metalic/silver case). The XYZ is 6volt and Rcexl 4.8 nominal volts. Many manufacturers use the Rcexl ignition and I think it's the better quality of the two.(And more expensive). The hall sensors are not interchangable as the Rcexl has a futaba plug and the XYZ it's own connection. The XYZ is now available to fit CM-6 plugs from the Turnigy 50cc engine. The Rcexl is manufactured with a wide range of caps to suit different plugs.(Twins also) You can put the magnet where you want BUT for example, if you were installing it on an engine with a front mounted carby and the magnet was on top then the sensor would interfere with the carb. It's not about where the magnet is, but where you want the sensor mounted.
Posted on: 4/29/2009 11:24 PM by Author "Aussie Maddog" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=8727710

RE: Max carb bore for a 26cc engine
My SPE 26 came with a WT 419 (Vent. 9.5 & Throat. 14.29). WT 645 and WT 257 (Vent. 12.7 & Throat 15.8) improved RPM to 8300 with APC 16x8. Lost some transition control but was manageable (645 probably the best). I am going to try a WT 600 (Vent 11.1 & Throat 15.8). If max RPM is maintained then this should give me the best transition. To those going for larger throat carbys, be sure to enlarge the spacer hole if needed. You can see my original throat was 14.29 and now I'm using 15.8 throat carbs. I've enlarged the hole to suit. This cut into the pulse line hole and I have filled it in with sealant and run an external line. [image]http://www.rcuniverse.com/gallery/galleryItem.cfm?itemID=175900&dummy=3612.608875441486&opener=/community/profile.cfm%3Fsection%3Dgallery%26memid%3D118404[/image]
Posted on: 4/16/2009 12:25 AM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8685905

RE: SK ENGINES
This may help you Greg.... http://www.himodel.com/engines/Muffler_for_90_Size_Engine_for_Scale_Airplane.html
Posted on: 3/22/2009 1:20 AM by Author "Aussie Maddog" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8602546

RE: OS 55AX
The bronze bushes (bearings) are porous. They absorb and hold oil. During any cleaning of the internal components with a solvent, you need to make sure any oil leached out is replaced. Leaving a solvent to soak parts, it is possible to disolve and leach out all the oil. The part then needs to be soaked in oil (preferably at a warm temperature) to replenish the lost oil. An engine started with a lack of oil in the bearings will cause a lack of lubrication until the bearing soaks up enough oil (from the incoming fuel charge) to become "full". I've always thought the above was correct but I'm happy to be corrected if it's wrong.
Posted on: 10/30/2008 2:21 PM by Author "Aussie Maddog" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8099151

RE: BCMA 26 Laser 200 under powered???
I,m not sure if this is any help. My BCMA 26 also pulls 8000 with a 16x8 APC. It came with a 419 carby (9.5 mm venturi). I think I read reports of other BCMA 26's coming with larger 11.1 mm venturi carbs? I'm going to upgrade to a larger carb. I believe my carby is too small.
Posted on: 10/29/2008 2:12 PM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8096030

RE: about bearings
Hello, Two important factors relating to bearings, are RPM's and temperature. Bearing manufacturers recommend oil lubrication for high RPM and high temps. Oil is more capable at carrying away heat and remaining in contact with the balls for lubrication. Grease can be (at temperature) flung away, past shields and seals. Oil in the incoming air/fuel charge would have to fight it's way through the seal to the balls. I think, fit bearings,seals as per engine manufacturers instructions. I repair various machinery on a daily basis and anything that runs at speed is generally oil lubricated.
Posted on: 10/24/2008 3:50 PM by Author "Aussie Maddog" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8081178

RE: What can cause High Speed Missing?
Hello, You might want to try a prop with less load. 16 x 8 maybe?
Posted on: 10/16/2008 1:26 PM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8054469

RE: Bentley BR2 Rotary drawings?
Try Here... http://www.agelessengines.com ......Not sure of the scale.
Posted on: 9/22/2008 12:20 PM by Author "Aussie Maddog" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=7979244

RE: CDI units for $25 bucks??
Hello, I just purchased 3 of these. Only one seems to work when passing a magnet over the sensor. Will have to check the others a bit more. Duayne, the hall sensor wiring polarity looks to be different from the standard Rcexl hall sensor with the positive and negative swapped around. The early (V1?) Rcexl ignitions were like this also. This maybe your problem? Regards
Posted on: 9/20/2008 4:03 PM by Author "Aussie Maddog" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=7973274

RE: New KMP Cessna 185
Here's some water rudders. Don't know if they're scale. http://www.horizonhobby.com/Products/Default.aspx?ProdID=HAN4584
Posted on: 9/6/2008 3:03 PM by Author "Aussie Maddog" in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=7926479

RE: Reverse Running
Hello, Try putting another nut on the shaft and tightening both nuts together. You may need to put the second nut on backwards if your using another prop nut.
Posted on: 9/6/2008 2:48 PM by Author "Aussie Maddog" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=7926436

RE: rpm's increasing in flight
If your club is a member of a state/national association, they may have guidelines on noise measurement. This would be the best place to start.
Posted on: 7/23/2008 12:25 AM by Author "Aussie Maddog" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=7761927

RE: Smallest trimmer for conversion?
OK Thanks
Posted on: 7/8/2008 6:08 AM by Author "Aussie Maddog" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=7706369