Author Topic: Jan Ridders 2 stroke completed and running!  (Read 4941 times)

Offline Admiral_dk

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Re: Jan Ridders 2 stroke completed and running!
« Reply #15 on: February 24, 2018, 08:18:16 PM »
Congratulations on a very fine runner  :praise2:

Offline Doc

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Re: Jan Ridders 2 stroke completed and running!
« Reply #16 on: February 25, 2018, 12:58:23 AM »
Good job nice running engine. Is it running on a vapor carb I'm not that familiar with that engine.  It runs and looks good!! NICE JOB!
 :praise2:

Offline Roger B

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Re: Jan Ridders 2 stroke completed and running!
« Reply #17 on: February 25, 2018, 08:29:36 AM »
Looks and sounds like you've got it sorted, excellent  :praise2:  :praise2: Thank you for posting your tips  :ThumbsUp:
Best regards

Roger

Offline dparry01@gmail.com

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Re: Jan Ridders 2 stroke completed and running!
« Reply #18 on: September 03, 2020, 12:23:46 PM »
Looks and sounds great! Nice job.

Do you know exactly what type of steel you used for your flywheel? The plans just call for steel, but I'd like to use something I can get a decent finish on. Yours looks pretty good.

Offline cheepo45

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Re: Jan Ridders 2 stroke completed and running!
« Reply #19 on: September 03, 2020, 02:44:32 PM »
 The flywheel was made from "mystery steel"
It machined like 4130, although I think 1018 (mild steel) would work.
I used a small radius (.008) tool for the finish cuts, then polished it with 320 and 600 grit sandpaper.
Thanks for your interest.
 Scott
« Last Edit: September 03, 2020, 02:52:00 PM by cheepo45 »

Offline ShopShoe

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Re: Jan Ridders 2 stroke completed and running!
« Reply #20 on: September 04, 2020, 01:14:26 PM »
Thank You for posting the video. That is running nicely and sounds great.

Congratulations on a successful project.

ShopShoe

Offline dparry01@gmail.com

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Re: Jan Ridders 2 stroke completed and running!
« Reply #21 on: December 18, 2020, 11:46:49 AM »
Hi Scott,

I met you and saw this engine at Cabin Fever. You made a really nice looking and running engine.

Im also working on this design. Im curious about how you mounted the magnet for the sensor since I have the same ignition system. Did you just make the ignition cam part from the plans using all the same dimensions and then press fit the magnet on the high point of the cam OD?


Offline cheepo45

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Re: Jan Ridders 2 stroke completed and running!
« Reply #22 on: December 18, 2020, 02:28:27 PM »
I have been through several designs for the ignition cam. I made the first one from brass as indicated in the plans, but decided not to use it because I was going with the hall sensor.
 The second one was made from plastic (Delrin, I think), and was on the engine for quite a while. You can see where the magnet is mounted. I glued it in with super glue.  I also removed the screws attaching it to the flywheel and added a setscrew so the timing could be adjusted without moving the flywheel around.
 The final design is a governor mechanism that I designed to keep the rpm's from getting too high ( detailed in another post).
 You can also see the Delrin stand that I made for the Hall sensor.
I'm glad to see others building this engine. I haven't seen another at any of the shows I attend.
This one was a bit difficult to get to run properly, but I eventually fixed it.
The biggest issue was compression - make sure your piston is an extremely close fit to the cylinder.
 Happy building and Happy Holidays!
 Scott
« Last Edit: December 18, 2020, 02:32:32 PM by cheepo45 »