Author Topic: Elmer's # 13 2X Larger than original ......  (Read 5812 times)

Offline toolznthings

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Re: Elmer's # 13 2X Larger than original ......
« Reply #45 on: March 02, 2018, 02:11:30 PM »
Two more pictures .......

Offline Dave Otto

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Re: Elmer's # 13 2X Larger than original ......
« Reply #46 on: March 03, 2018, 01:10:05 AM »
Looks great Brian!

Dave

Offline toolznthings

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Re: Elmer's # 13 2X Larger than original ......
« Reply #47 on: March 03, 2018, 01:13:14 AM »
 Hi Dave ! Thanks !!


Offline toolznthings

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Re: Elmer's # 13 2X Larger than original ......
« Reply #48 on: March 03, 2018, 05:43:03 PM »
Machining the upper valve plate, middle valve plate and lower valve plate.

Stacked all three plates together and machined the width and length in a couple of setups.

Individually spot drilled , drilled and reamed each plate .257" diameter to match the columns spacing.

The lower valve plate has two counter bores to match the 2.000" cylinder diameters. Machined with end mill to .062" deep within a layout line and the diameter finished with the boring head.

The other two plates had features milled for the valve guides to clear and air passages milled.

Offline Plani

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Re: Elmer's # 13 2X Larger than original ......
« Reply #49 on: March 05, 2018, 09:54:26 AM »
Great Progress  :ThumbsUp:
And a lot of really nice looking parts!

Plani

Offline toolznthings

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Re: Elmer's # 13 2X Larger than original ......
« Reply #50 on: March 05, 2018, 01:33:03 PM »
Thanks ! Keep a eye on that Yogi guy, too !  8)

Offline toolznthings

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Re: Elmer's # 13 2X Larger than original ......
« Reply #51 on: March 05, 2018, 04:08:36 PM »
Machining the valve guide / seat ........

At the lathe the .188" thru hole for the valve rod is bored from both ends. The opposite end has a counter bore and the 45 degree valve seat. The O.D. is turned to fit the bores in the valve plate.

Next operation at the mill cuts the .062 slot which allows air to pass into the valve plate.

After some deburring the guides are Loctited into the valve plate to finish this part.

Offline toolznthings

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Re: Elmer's # 13 2X Larger than original ......
« Reply #52 on: March 06, 2018, 05:55:26 PM »
Quick set up for exhaust ports and making the intake valves

Using a arbor in the 5C indexer to drill the exhaust holes. I did holes instead of a slot.

The intake valves are made from two parts silver soldered together. The stem is ground .1875" diameter 12L14 stock and the valve end from 5/8"  to leave stock for turning. My simple third hand in operation. ( Hints,Tips & Tricks )

The next operation at the lathe is to clean up the bottom of the valve head. After this operation the valve was inserted further into the collet , faced to size and center drilled.

Re-positioned and supported with a live center the O.D. was turned and the 45 degree valve face was cut.

After finishing the overall length the 10-32 thread were chased on the end.

At assembly the valves will be lapped into the valve seat.

Offline toolznthings

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Re: Elmer's # 13 2X Larger than original ......
« Reply #53 on: March 07, 2018, 02:46:21 PM »
Machining the flywheel ..........

The flywheel is my design and is 6" in diameter. After machining the blank at the lathe I broached a 1/8" key way thru the bore.
Setup at the mill for drilling and tapping for a 10-32 set screw hole over the key way.

I setup the crank shaft and cut the matching key way on both ends of the crank. Did a test fit to the crank.

At the CNC mill I made a setup to machine the spokes in the flywheel.

Offline toolznthings

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Re: Elmer's # 13 2X Larger than original ......
« Reply #54 on: March 07, 2018, 02:47:38 PM »
After doing the necessary bench work and painting the flywheel is complete.

Offline Admiral_dk

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Re: Elmer's # 13 2X Larger than original ......
« Reply #55 on: March 07, 2018, 06:32:25 PM »
That is a very handsome flywheel and the colour isn't half bad either  ;)

You're really moving along on this build  :ThumbsUp:

Offline toolznthings

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Re: Elmer's # 13 2X Larger than original ......
« Reply #56 on: March 09, 2018, 01:53:41 PM »
Pictures showing all the parts with the finish work completed. This included any final deburiing , polishing , removing cutter marks and adding chamfers to the edges on different parts.
Made some custom size brass washers for the fasteners and cut all the dowel pins to final length where needed. The acorn nuts needed some work to make them presentable, too.

Offline b.lindsey

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Re: Elmer's # 13 2X Larger than original ......
« Reply #57 on: March 09, 2018, 02:08:06 PM »
Love that last family shot!!  You should have it running in short order now I would think.

Bill

Offline gbritnell

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Re: Elmer's # 13 2X Larger than original ......
« Reply #58 on: March 09, 2018, 02:24:44 PM »
Hi Brian,
It looks like another fine addition to your collection.
Give me a call when you get a chance.
gbritnell
Talent unshared is talent wasted.

Offline toolznthings

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Re: Elmer's # 13 2X Larger than original ......
« Reply #59 on: March 12, 2018, 03:15:51 PM »
Starting the assembly .......

The hard part is not marking, dinging and scratching all the finish work when putting everything together.
The pictures pretty much describe how the first part of the assembly is done.

The base plate has been painted and ready for the lower part of the engine.

Lots of rags to protect everything when the connecting rods and pistons are installed.  8)