| Author |
Message |
    
Mark Taylor
Member
Username: dart
Post Number: 9
Registered: 02-2006
| | Posted on Tuesday, June 20, 2006 - 03:34 pm: | 
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Good progress on the R3M I am re-building from a non-runner. I now have a good spark from the magneto thanks to the trick on the Saving Old Seagulls website - namely running it up with a drill for a few minutes. The engine hasn't started yet - I got spark, I have got good compression, but I think carbarration may be suspect. I have a stuart carb - work of art being solid brass. All cleaned up and float working well and jet clear. But I am not sure what setting the screw in air cap should be at? I know some fuel is getting through from taking out the sparkplug. So I must be nearly there...Any advice on starting from cold, and setting up the carb correctly. I hasten to add that this is my first Stuart engine. |
Peter Ogborne
Senior Member
Username: peterogborne
Post Number: 145
Registered: 09-2002
| | Posted on Tuesday, June 20, 2006 - 07:35 pm: |
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Mark ........start with the air cap screwed out no more that 6mm [ 1/4'' for you imperialists] any more that this will be too rich ,the further out it is the more fuel it takes in. |
Mark Taylor
Member
Username: dart
Post Number: 10
Registered: 02-2006
| | Posted on Wednesday, June 21, 2006 - 07:02 am: |
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Thanks Peter, that's really helpful as I had assumed it was the other way round! |
Peter Ogborne
Senior Member
Username: peterogborne
Post Number: 147
Registered: 09-2002
| | Posted on Wednesday, June 21, 2006 - 07:15 am: |
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Mark ,I am interested in how you get on . It is a great little engine and you should be able to start it easly.
I'll be away for a couple of days ...going bush to collect a windmill |
M Taylor
Visitor
| | Posted on Monday, June 26, 2006 - 08:53 am: |
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I have got one splutter so far - which is a good sign. There is a problem with the Stuart Carb - when the full tap is opened up from the tank, the float rises, but then fuel just runs out continuously from the small hole in the cap of the reservoir. So presumably the needle valve is not working properly? Any ideas? |
Peter Ogborne
Senior Member
Username: peterogborne
Post Number: 149
Registered: 09-2002
| | Posted on Tuesday, June 27, 2006 - 06:32 am: |
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Mark ,a couple of things . The carby float is positioned on the needle by way of a groove in the needle . This positions it at the right position and maintains the correct fuel level in the float chamber. You will see a clip on the top of the float .sqeeze it in and you can move the float on the needle .Take the float off and check it for holes ,put it in some warm water and look for bubbles . Bubbles will indicate a leak so you will need to apply some solder. While you have float off have a look and you will see the groove that the clip locates in .Check the needle. It can be removed by undoing the fuel banjo fitting at the bottom of the float chamber. You may have to lap it in on it,s seat ,use some Brasso or a fine abrasive .When you have it all back together leave the top off the float chamber and turn on the fuel . You can observe the operation and the fuel level by this means.
You should be OK now. |
