Author Topic: 1st I.C. build "Tiny"  (Read 11559 times)

Online Dave Otto

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Re: 1st I.C. build "Tiny"
« Reply #300 on: September 12, 2017, 01:08:50 AM »
Congrats on the new job Bob!
That's great that you were able to be home for your kids in their early years.

We will be here when you find time to work on engines and share your progress.


Dave

Online b.lindsey

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Re: 1st I.C. build "Tiny"
« Reply #301 on: September 12, 2017, 01:10:40 AM »
Congrats on the new job Bob. Life does get in the way at times but that takes precedence over hobbies. I'll be here whenever you get back to Tiny, and just as interested then as I am now. Best wishes in the new position.

Bill

Online steamer

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Re: 1st I.C. build "Tiny"
« Reply #302 on: September 12, 2017, 01:55:01 AM »
Congrats Bob!

Do what you gotta do....I've worked just about every day for the past 15....I hear ya.

Dave
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Offline 90LX_Notch

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Re: 1st I.C. build "Tiny"
« Reply #303 on: September 12, 2017, 08:32:20 PM »
Thank you gentlemen for the well wishes.  I have to say,  one finds out how old they are when they are working with people half their age.  I come home tired.  We have been limbing trees in preparation for plowing.  We have over 50 miles of roads that we maintain besides the pools, buildings, parks, etc. 

I plan to finish the piston this weekend if family "stuff" (or exhaustion) doesn't prevent shop time.


-Bob
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Online Tennessee Whiskey

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Re: 1st I.C. build "Tiny"
« Reply #304 on: September 12, 2017, 11:31:24 PM »
Bob, well I guess I can say: " welcome back to the workforce" , but, there are days I sure would like to be that stay at home dad  :old:. You'll get back in the swing of things. One word of warning from one who employs youth: there are many things they are clueless about, but, getting someone else to do the majority of work isn't one of them. And they are good at it. Just saying. Anyhoo, make swarf when you can.

Cletus

Offline 90LX_Notch

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Re: 1st I.C. build "Tiny"
« Reply #305 on: September 13, 2017, 10:57:41 PM »
Thanks Eric.  I have to say, these guys do work.


-Bob
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Online Tennessee Whiskey

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Re: 1st I.C. build "Tiny"
« Reply #306 on: September 14, 2017, 12:45:54 AM »
That's great Bob. If their heart is really in it, they will usually work with us "old folks"

Cletus

Offline 90LX_Notch

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Re: 1st I.C. build "Tiny"
« Reply #307 on: Today at 12:20:51 AM »
I was lucky enough to get some shop time.


Piston:

The piston is pretty straight forward.  I made a lap and lapped it while it was still attached to the parent material.  Then it was parted off and the wrist pin bore was drilled and reamed and the pocket for the small end of the connecting rod was milled.  I wanted to ensure that the bore and pocket were perpendicular to each other.  The easiest way that I could come up with was to mount the piston in a small toolmaker's vice with a small vee block. 

A parallel was the bolted to the mill's table and indicated along X axis.  This gave me a datum to bank the toolmaker's vice off of.  The wrist pin bore was drilled and reamed to size first. This was done with the vice on it's side and clamped to the table against the parallel.  For the pocket, the vise was oriented as it normally would be and against the parallel.  This ensured that both the bore and the pocket's geometry were correct in relationship to each other.  The piston was then indicated to get true center and the pocket was milled.  A dowel pin was used to make the wrist pin.


-Bob
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Online b.lindsey

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Re: 1st I.C. build "Tiny"
« Reply #308 on: Today at 12:55:28 AM »
Glad to see some progress Bob. I know shoo time has been hard to come by.

Bill