First Engine No Plans.

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Well here is another redesign! On the last page I made screw in bronze tappet guides. I didn't have enough room to use them and these where easier to make. I used old cast iron valve guides. cut to size and reamed to 0.2510.

 

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Three more of the tappet guides

 

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now I need to make a bracket to hold them in.

 

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Now it is time to cut the block and give the guides a place to live.

 

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......

 

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Here are the last two along with two pics of my little helper (when the machines are off). He is a little too short to hang out eye level with flying metal.

 

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Started on the camshaft blank.

 

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Ready to cut the lobes, I found another way to use my lathes steady rest.

 

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Cutting the lobes was fairly easy. About 15min each of actual machining.

Thanks Gbritnell for this thread -----> http://www.homemodelenginemachinist.com/index.php?topic=5714.0
It made this process almost simple.

I made a few videos of actually cutting the lobes but they are long and slow. Do any of you know a free program I could use to speed parts or all of it up 4 or 5X to post on youtube?

Jasen

 

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Cam lobes just need some cleaning up and they will be ready to go.

 

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Now I could just pin and setscrew this pulley into place but then it would look as cool. And it will be easier to set cam timing if it is adjustable. So I am going to modify the original pulley.

 

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Finished pulley.

 

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Now the pulley needs a hub to bolt to.

 

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Here are a few more.

 

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Last few for now.

 

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Got the pushrods and tappets done.

 

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The crankshaft is close to finished also.

 

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Here are two more.

 

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Wow, this thing is really coming along.... Looks real good so far

Robin

 

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Thanks Robin, seems like forever but getting close now. I just finished the final piston and connecting rod so I have a few new pics to post soon.