First Engine No Plans.

[JimN]

That being your first engine, all I can say is WOW. I must be in the wrong place, where is the forum for us not so good beginners.

Very nice. Congrats

 

[ksouers]

HYTECH.

I believe I got the problem worked out. Sorry for the delay.

I don't know what happened, but please don't do it again ;D


Kevin

 

[HYTECH]

HYTECH.

I believe I got the problem worked out. Sorry for the delay.
I don't know what happened, but please don't do it again ;D
Kevin

Thanks! I wish I knew what I did. ??? I was uploading more pics and then everything just froze then no more page 2. Anyway I will try again later today.

 

[HYTECH]

One thing I need to practice with is turning a shaft to size. most of the time I over shoot and go undersized. I did this on the crank mains. and the bearings fit loose so I ordered some bearings from Granger that were undersized and made to be pressfit onto a 0.500" shaft and they fit nicely.

I also need to work on finish passes but I think that is mostly my tooling. (cheap carbide 38 piece kit for $20.00) I just ordered HSS blanks from Enco and am going to try to cut my own. I think this will work better. And Man I need a DRO.

Here are examples of my rough and undersized finish passes. Any pointers?

 

[Maryak]

Hytech,

A couple of things come to mind

Blunt tool tip not on centre height

Tip radius smaller than the rate of feed

Lack of rigidity - tool overhang to high, job overhang from support centres.

Hope this helps.

Best Regards
Bob

 

[HYTECH]

It's been a long time and I've just got back to this project.
i've changed the cylinder design it was too long and I decided to have 4 studs or long cap screws pass through the cylinder and head. With the last pic you will see it is hard to take pictures with a 21 month old little boy helping, all I could do to keep it out of his hands but we had fun. I almost have the head finished also and will post pics soon

 

[ShedBoy]

Nice work :bow: That little hand makes that cylinder look bigger than it is. Good to get them interested young. Keep up the good work and the pics.

Brock

 

[HYTECH]

And here is the cylinder head.

 

[HYTECH]

A few more

 

[HYTECH]

Two more on this one.

 

[HYTECH]

Cutting cooling fins on the head is a long time consuming project when using a parting tool in a boring head.

 

[HYTECH]

The cooling fins are done. Not perfect but with a little touching up I can make it look pretty good.

 

[HYTECH]

Here is a bronze valve guide.

 

[HYTECH]

Stainless steel valve.

 

[radfordc]

Amazing!! I can't even draw an engine without redoing all the parts many times to get them to fit...and you're doing this from your head!! :bow:

 

[HYTECH]

Made a valve seat cutter. I still have a little work to make it cut but that will be done at a later date.

 

[HYTECH]

Amazing!! I can't even draw an engine without redoing all the parts many times to get them to fit...and you're doing this from your head!! :bow:

Oh I redo atleast half of it. Cylinder, piston, This is the second block/crankcase, many valves, camshaft, ECT.. Lots of mistakes and redesigns. I should have put it on paper first.

I am getting quite a collection of cool machined paper weights. When this is done I'll post picks of the parts that didn't make it.

 

[HYTECH]

Three more cutter pics.

 

[HYTECH]

This is how it looks right now.

 

[HYTECH]

Started making the cam tappet/follower guide out of bronze.