Author Topic: AOG’s version of Elmer’s number 5 geared engine  (Read 3748 times)

Offline AOG

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Re: AOG’s version of Elmer’s number 5 geared engine
« Reply #45 on: November 11, 2019, 04:02:12 PM »
Take a look at the video in this thread you’ll see what I mean.

http://www.modelenginemaker.com/index.php/topic,840.msg9297.html#msg9297

Tony

Offline b.lindsey

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Re: AOG’s version of Elmer’s number 5 geared engine
« Reply #46 on: November 11, 2019, 04:31:03 PM »
Nice to see more progress Tony. Hope to build one of these one day.

Bill

Offline AOG

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Re: AOG’s version of Elmer’s number 5 geared engine
« Reply #47 on: November 26, 2019, 06:55:16 PM »
This weekend I completed the crankshaft and flywheel. Let’s start with the crank. First I faced the stock and drilled the center hole.



Then it was over to the mill where I centered up on the hole and drilled the hole for the crank pin.



The sides of the part were milled to shape and parted off.



The shaft was turned to fit in the crank and loctited together. Then  the crankshaft assembly was faced and turned to true it up.



Next was the flywheel. It was mounted on the three jaw and centered with a bump center. The center boss was cleaned up and the center hole drilled.



The part was flipped and and the other center cleaned up. The flywheel was mounted on a mandrill, turned and faced.



Unfortunately the casting had several blow holes in the rim and he face. Feeling lazy, I decided paint the flywheel. I cleaned up the other side and then fill the holes with JB weld.



Once the JB weld cured I cleaned up the flywheel.



With that done I am getting close to end of this one. I have a few more “bits and bobs” left to do to complete the machining.

Till next time

Tony


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Offline bent

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Re: AOG’s version of Elmer’s number 5 geared engine
« Reply #48 on: November 26, 2019, 11:00:39 PM »
Sorry to hear about the flaws in the flywheel Tony, looks like you did a good repair job.  Where did you get the casting from?

Offline AOG

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Re: AOG’s version of Elmer’s number 5 geared engine
« Reply #49 on: November 27, 2019, 01:08:29 AM »
It’s a PM research casting.

Tony

Offline AOG

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Re: AOG’s version of Elmer’s number 5 geared engine
« Reply #50 on: December 20, 2019, 06:47:53 PM »
Time to close out the machining on this one. I made the two gland nuts by turning them to profile



Then they were threaded, drilled and parted off.



The last parts were a pair of shoulder bolts. The blanks were turned to shape.



Then they were threaded and parted off.



Next they were placed in a collet block and the slot was cut.



That completes the machining for this project. I am now working on lagging the cylinder and painting the model. Let’s close out this update with a final family shot.



Till next time

Tony


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Offline scc

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Re: AOG’s version of Elmer’s number 5 geared engine
« Reply #51 on: December 20, 2019, 09:36:22 PM »
Good work,    always like  to see a family photo.            Terry

Offline bent

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Re: AOG’s version of Elmer’s number 5 geared engine
« Reply #52 on: December 23, 2019, 06:43:08 PM »
 :ThumbsUp: :popcorn: