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40cc Weed eater Engine

Old 04-02-2020, 06:25 PM
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Nunotec
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Smile 40cc Weed eater Engine

Here it is an converted chinese Engine of 40cc with WYK Carb Type .
Lot´s of Torque
Converted to Capacitive Discharge Ignition RCxel type Ignition with Hub Propeller made in Unimat Lathe
Runs Smooth and good

Youtube Videos of my Engine :



















Hub made in lathe


Detail Hub propeller



Detail about pick up collar

Plugshop after running half an hour

Bulldog Clip

Timming Degree





Old 04-02-2020, 08:17 PM
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flyingagin
 
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That is great. I have similar lath and a 30cc Ryobi plus a 42cc Pulon (spelling???) mostly stripped down. I may have to give that a try.

Zero metal lath experience

Ken
Old 04-02-2020, 10:54 PM
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Nunotec
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First i advice you to learn how a lathe works and practice.
Then research in internet how a hub propeller is made in lathe.
Read and practice a lot before convert any engine of yours.
You you want we could Skype perhaps

Best Regards

Nuno from Portugal
Old 04-03-2020, 06:42 AM
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Be awhile before I am ready to try anything. I have a move cross country coming up in a few months.
Hubs used to be available for conversion. But not any more So if a person can learn to do it themselfs and have the tools, it just make sense.
I will keep keep this in mind once moved.

Thanks for the offer to Skype. I will post when I am ready to try something.

Ken

Old 04-03-2020, 01:19 PM
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Looks and sounds great. I have a Stihl 4mix that is near done, main hangup is how to mount the cdi sensor/ Ive 3d printed various mounts but I dont like them. The area to mount it is awkward.
Old 04-03-2020, 02:26 PM
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Nunotec
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All right Dear Ken

Be confortable to send message when you want to exchange ideas

Here it is a site that i like very much to give a direction or ideas

https://www.instructables.com/id/8-F...-RC-Piper-Cub/
Old 04-03-2020, 02:30 PM
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Nunotec
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Originally Posted by kamlooper View Post
Looks and sounds great. I have a Stihl 4mix that is near done, main hangup is how to mount the cdi sensor/ Ive 3d printed various mounts but I dont like them. The area to mount it is awkward.
Dear Kamlooper

Here it is an explanation about timming these kind of engines and RXCEL type CDI`s

timing%20a%20gasser.pdf

Note :RXCEL cdi has got programmed microprocessor that admites the timing be 28 degrees before TDC top dead centre
Old 04-03-2020, 02:44 PM
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No I have the timing all sorted out. Its mounting the sensor is the problem.
Old 04-03-2020, 02:51 PM
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Nunotec
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Dear Gentleman

Here it goes more examples about timing :

RCexl ignition installation

Old 04-03-2020, 03:02 PM
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Nunotec
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Originally Posted by flyingagin View Post
That is great. I have similar lath and a 30cc Ryobi plus a 42cc Pulon (spelling???) mostly stripped down. I may have to give that a try.

Zero metal lath experience

Ken
I research and it goes an you tube example of making a prop adapter in Lathe:

Old 04-03-2020, 03:04 PM
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Nunotec
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Originally Posted by kamlooper View Post
Looks and sounds great. I have a Stihl 4mix that is near done, main hangup is how to mount the cdi sensor/ Ive 3d printed various mounts but I dont like them. The area to mount it is awkward.
Do you have got pictures about your 3d printed parts?
Old 04-03-2020, 03:10 PM
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Nunotec
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RCEXL Ignition Systems from Apache Aviation :

4.pdf
Old 04-03-2020, 07:06 PM
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Originally Posted by Nunotec View Post
I research and it goes an you tube example of making a prop adapter in Lathe:

https://www.youtube.com/watch?v=qqlexLHi3dE
Thanks for that link. It is now bookmarked

Ken

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