|
|
|
| Engines Discuss engines |
Topic Review (Newest First)
|
| 04-09-2013 03:31 AM | ||
| controlliner |
Re: Air Bleed carb This engine should idle and transition as designed. ensure the air bleed screw is covering the hole 1/2 way. Set the idle stop screw until the throttle barrel has a 3/32 gap (yes 3/32 gap) when closed. Start the engine with a good plug and let it warm up. Then close the throttle and start screwing out the idle stop in small increments. Open the throttle up to check throttle transition periodically. Stop opening the idle stop when you get good transition. This engine is not fitted as fine as an OS of the same generation, it will take some fuel to get the piston and liner seated well enough for a good idle. You may find when you get a good idle, the throttle barrel may have a 1/16th gap or more. Whatever gets you a good idle, go with it. If the barrel is opened more, check for air leaks causing a lean condition. |
|
| 04-07-2013 08:53 AM | ||
| Dwayne1 |
Re: Air Bleed carb Thank you so much for all the advice. Someone from my club knows a bunch about this and is going to give me a hand dialing it in. Thanks again |
|
| 04-07-2013 12:08 AM | ||
| Arceenut |
Re: Air Bleed carb Air bleed carbs are more critical of fuel level/tank height. Sometimes lowering the tank 1/2" can make all the difference. |
|
| 04-06-2013 09:56 PM | ||
| wellss |
Re: Air Bleed carb remove the air bleed screw completely, opens up a bigger hole, will run better Reduce nitro content, higher nitro = richer mixture |
|
| 04-06-2013 08:47 AM | ||
| kip51035 |
Re: Air Bleed carb Another thing try disconnecting the muffler tap pressure line and very important thing, if this is a plain bearing lapped lapped piston single bypass engine you must add enough de-gummed castor oil (Sig) to bring the oil quantity to 25%. If the exhaust residue is grey, that is the metal from the inside of your engine wearing away. |
|
| 04-06-2013 08:10 AM | ||
| Flypaper |
Re: Air Bleed carb Hi Dwayne. With the barrel closed, you file a notch in the upper front of it. I'll dig around and see if I can find one of my old motors already done. Later, literally 
|
|
| 04-05-2013 07:47 PM | ||
| Dwayne1 |
Re: Air Bleed carb Quote:
|
|
| 04-05-2013 07:17 PM | ||
| Good Grief |
Re: Air Bleed carb Which way (orientation) is the engine sitting in the plane? |
|
| 04-05-2013 07:04 PM | ||
| Dwayne1 |
Re: Air Bleed carb Quote:
Now if I do file the barrel I assume only file on the air bleed hole side of the barrel. Correct? |
|
| 04-05-2013 06:10 PM | ||
| kip51035 |
Re: Air Bleed carb 1. Make shure the air bleed hole is not blocked. Back the screw out, close the throttle and run a large pin through it. 2. Make sure that the bottom of the rotating barrel has not been filed to make the idle mixture richer. 3. Then if that is ok then use a nickelson or small chain saw file to put a very small groove in the top of the rotating barrel. Be careful and do a little bit at a time. 4. Start with the screw covering 2/3 rds of the hole. Make it go richer by screwing the air bleed screw in then adjust the idle mixture. 5. But first get a hotter glow plug. |
|
| This thread has more than 10 replies. Click here to review the whole thread. | ||
Your Privacy Choices