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Author Topic: Small V8  (Read 79879 times)
stevehuckss396
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« on: August 03, 2010, 21:43:08 pm »

I'm going to start this thread with the understanding that everything you see until now was made with Lazy Cam. About 2 weeks ago I switched to CB and every part forward will be made with CB. I am going to recap the parts that are done just to keep everything in one place.from beginning to end.

This engine is a 5/8 bore and stroke V8 with water cooling and splash lube. I picked this size thinking that there are no V8 plans that are small enough to be built on the smaller table top machines that many of us have. The block is only 5 inches (127mm) long.

The heavy hogging was done on a bridgeport and all the pocketing and drilling was done on the little CNC machine.



Oil pan was made first because it must be bolted to the block to complete the block.








Block

















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stevehuckss396
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« Reply #1 on: August 03, 2010, 21:50:41 pm »

The cylinder heads


Top



Bottom








Exhaust bank













Front timing gear cover




Rear cover



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stevehuckss396
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« Reply #2 on: August 03, 2010, 22:04:47 pm »

Intake manifold

















Head gaskets.  This fixture was my first CB project.





Cut out the holes and the pocket with a razor blade



Drill the small holes with a drill bit



Remove the gasket from the fixture and install it.



Trim around the head



Then remove it from the engine



I did the same thing with the intake gaskets and that where i am at as of now.


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stevehuckss396
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« Reply #3 on: August 03, 2010, 22:06:25 pm »

As this project moves along i'll post some updates and all future parts will be using CB!!!!!
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dave benson
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« Reply #4 on: August 03, 2010, 22:39:30 pm »

WOW.... thats fine work Steve, I'm looking forward to more posts.
BTW What material do you plan to use for the cylinder liners?.
Cheers Dave.
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stevehuckss396
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« Reply #5 on: August 03, 2010, 23:34:43 pm »

WOW.... thats fine work Steve, I'm looking forward to more posts.
BTW What material do you plan to use for the cylinder liners?.
Cheers Dave.

I use 12L14. Its a very nice machining leaded steel. Steel liners allow for aluminum pistons and cast iron rings.
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spiked3
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« Reply #6 on: August 04, 2010, 00:08:07 am »

Just for the drool factor;



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stevehuckss396
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« Reply #7 on: August 04, 2010, 00:24:27 am »

Just for the drool factor;

Here is a video I shot of it in 2008 at the Names show. Later that year I sat between Ron and another builder named Dale Detrich. Great guys!!


http://www.youtube.com/watch?v=Sh7fOIWpXn0

Other engines Ron has built

http://www.youtube.com/watch?v=NHgpIThJd_I

http://www.youtube.com/watch?v=TDlOAUWZWWE
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P.Passuello
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« Reply #8 on: August 04, 2010, 06:28:14 am »

All I can say is some people have far too much time on their hands.
And a few of those people know how to use it well.

I am very impressed with your workmanship and skill and look forward to seeing your video.
Keep the pictures coming.

Cheers
Peter
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The ingenuity of idiots is unlimited.
stevehuckss396
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« Reply #9 on: August 06, 2010, 23:10:56 pm »

The valve corvers took forever but all went well. I put a piece of sawed off stock in the mill and drilled the mounting holes and did all the machine work for the bottom side. All was done CNC. All 6 of them.





The block was rotated around holes were drilled to create the counter bore for the screw heads.




The top of the valve cover was brought to size




Then the edges of the counterbore were rounded off with a itty bitty endmill.




Last the corner rounding endmill was used to finish off the top and create the top protrusion.





While I was waiting on the mill I was busy tapping everything that needed to be tapped.

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10bulls
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« Reply #10 on: August 07, 2010, 12:25:02 pm »

This is really inspiring stuff Steve, thank you ever so much for posting this thread.

I have about a thousand questions, but I'll try and ration them a bit.

I know you are using steel for the liners, is the main block aluminium?
...and was you're starting point just some (large) square bar stock?

Are you working to about 1/5 scale?  I was curious about things like spark plugs etc and a bit of googling
threw that out as a common size.

I have a Denford Triac CNC mill on loan that I'm in the process of converting to Mach.  I have mostly done routing stuff, so I am trying to get more experience with mill machining.  I don't think I'll tackle a project quite so ambitious as yours, but it is very encouraging to see what can be achieved.

If there is anything you can think of that would make your life easier in CamBam, please let me know.
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stevehuckss396
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« Reply #11 on: August 07, 2010, 17:53:08 pm »

I know you are using steel for the liners, is the main block aluminium?
...and was you're starting point just some (large) square bar stock?
Are you working to about 1/5 scale?  I was curious about things like spark plugs etc
If there is anything you can think of that would make your life easier in CamBam, please let me know.
Yes, Steel liners, aluminum pistons, and cast iron rings.
Yes, All bar stock. The block was 3 X 3, the heads were 1-1/4 X 3/4, ect.
Yes, about 1/5th scale
Spark plugs will have to be made. 8-40 thread with Corian insulators.
I have to learn how to use CB first. The valve covers were all CB.
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stevehuckss396
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« Reply #12 on: August 13, 2010, 21:27:10 pm »

Hello all!

Managed some garage time today. Worked on the bell housing.

Started by machining the OD of the housing and establishing the back of the flange. Then I machined a small boss on the rear so there would be something to hold onto the part when it gets rotated.



I learned this one from watching the members on the HMEM site. I machined steps every .025 to the proper depth to form a .500 radius.



Then with a file and some sand paper, the steps were blended together to form the curve.

 

The part was then rotated and the flange was brought to size.



The inside was drilled thru and the two bores were made.



The insite corner was knocked down on a 45 degree angle to complete the inside shape.



A small step was them made to give the proper size to fit the boss on the rear plate.



Again the part was rotated and the holding boss was removed and cleaned up a little.




I still need to drill the hole pattern to mount the piece but that should be a quick deal!

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Bubba
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« Reply #13 on: August 13, 2010, 22:02:04 pm »

Awesome job! Waiting for more pictures.
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Bench_Top_Precision
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« Reply #14 on: August 13, 2010, 23:58:59 pm »

Very nice work. Just looking at it, it looks much bigger until I seen the picture of you palming it.
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