ShedBoys' First Engine
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ShedBoy
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- May 13, 2011
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Been plodding along and kicking some goals
Igniton breaker cam
Exhaust pipe and inlet stub which needs shortening
The start of a carby, took some inspiration from Chuck's carb he is building at the moment
Made a intake venturi to make it pretty, this engine needs some bling. 6mm hole through the middle
The spray bar forms the venturi in the carb (Thanx for the idea Mr Fellows) The problem was soldering it together and not getting any solder in the cross hole which was drilled before hand. More to come.
Brock
Igniton breaker cam
Exhaust pipe and inlet stub which needs shortening
The start of a carby, took some inspiration from Chuck's carb he is building at the moment
Made a intake venturi to make it pretty, this engine needs some bling. 6mm hole through the middle
The spray bar forms the venturi in the carb (Thanx for the idea Mr Fellows) The problem was soldering it together and not getting any solder in the cross hole which was drilled before hand. More to come.
Brock
ShedBoy
Senior Member
- Joined
- May 13, 2011
- Messages
- 792
- Reaction score
- 34
Cue the Liquid Paper/ White out, flux and silver solder add heat until combined
Stop, pickle time
The general gist of it
Three different size holes to three different depths. This is the last hole 1mm for 3mm. The problem is you can't tell if you snap it off as it is so small (well it is for a ham fisted oaf like me, thankfully it came out the same length it started at.
This is the set of drills I got for this job, $2.95 from Jaycar Electronics. The are PCB drills and look good when magnified.
Needle end is done
Other end was drilled for fuel supply. I have found a needle to try. Today I am going to finish the carb, only 4 simple parts to go and mount the points. May even pull it all apart and do some final assembly It is getting exciting. Thanx for checking in.
Brock
Stop, pickle time
The general gist of it
Three different size holes to three different depths. This is the last hole 1mm for 3mm. The problem is you can't tell if you snap it off as it is so small (well it is for a ham fisted oaf like me, thankfully it came out the same length it started at.
This is the set of drills I got for this job, $2.95 from Jaycar Electronics. The are PCB drills and look good when magnified.
Needle end is done
Other end was drilled for fuel supply. I have found a needle to try. Today I am going to finish the carb, only 4 simple parts to go and mount the points. May even pull it all apart and do some final assembly
It is getting exciting. Thanx for checking in.Brock
ShedBoy
Senior Member
- Joined
- May 13, 2011
- Messages
- 792
- Reaction score
- 34
Got more done today
Finally used my knurling tool
Little drills scare me
Needle finished
Needle in carb
Last machining on carb body
Just need some gland packing
Pic of the air screw
Lever to lock in position and soldered onto stub.
Group shot. After this pic I mounted the points and painted the main frame and cylinder, not much to go now.
1. Lap in valves
2. Space out O ring with some ali can or foil as it misses by 0.2mm but good sign it has compression.
3. Make some sort of base, chunk of wood.
4. Make 3 gaskets
5. Drop parts it ultrasonic cleaner for a bit
6. Bolt it together.
7. Wire it up, add fuel and give it a spin
Hopefully this time tomorrow we have had some pops, fingers crossed.
What would I use for gland packing on the needle?
Brock
Finally used my knurling tool
Little drills scare me
Needle finished
Needle in carb
Last machining on carb body
Just need some gland packing
Pic of the air screw
Lever to lock in position and soldered onto stub.
Group shot. After this pic I mounted the points and painted the main frame and cylinder, not much to go now.
1. Lap in valves
2. Space out O ring with some ali can or foil as it misses by 0.2mm but good sign it has compression.
3. Make some sort of base, chunk of wood.
4. Make 3 gaskets
5. Drop parts it ultrasonic cleaner for a bit
6. Bolt it together.
7. Wire it up, add fuel and give it a spin
Hopefully this time tomorrow we have had some pops, fingers crossed.
What would I use for gland packing on the needle?
Brock
ShedBoy
Senior Member
- Joined
- May 13, 2011
- Messages
- 792
- Reaction score
- 34
IT RUNS, unbelievable. I took some video of it but my can't get sound on computer. There is sound on the camera though. I am stoked. The carb needs some sorting but that was to be expected. It runs hot real quick but it runs need a model engine to start it but the revs are quite low. Dam camera. Might have another go later. Video with no sound herehttp://s1080.photobucket.com/albums/j325/brockster13/Engine 1/?action=view¤t=SAM_0202.mp4
8) It is done
Need to make a new needle but have to go to work tomorrow :'( just when it is getting exciting.
Brock
Isn't it a good feeling hearing that 'pop' for the first time?
And I wouldn't mind putting a bet on that you got just as much enjoyment from making it out of old bits and pieces rather than it costing you hundreds of bucks for a casting kit.
Keep that grin on your face for a while yet, and get it running continuously.
Very well done indeed. :bow: :bow: :bow:
John
And I wouldn't mind putting a bet on that you got just as much enjoyment from making it out of old bits and pieces rather than it costing you hundreds of bucks for a casting kit.
Keep that grin on your face for a while yet, and get it running continuously.
Very well done indeed. :bow: :bow: :bow:
John
fcheslop
Well-Known Member
Congratulations Brock and thanks for the journey
best wishes Frazer
best wishes Frazer
