Author Topic: Liney RV-1 - A New Double Wide  (Read 20961 times)

Offline sshire

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Re: Liney RV-1 - A New Double Wide
« Reply #45 on: November 01, 2013, 01:38:07 AM »
Liney RV-1 - A New Double Wide

Part 7

Everything Else


I know you all missed having this captivating build log yesterday, so I did a major push today. All parts are made. Tomorrow: assembly, intake and exhaust port drilling and…

First the cranks. Brass round bar turned to size then drilled and reamed .251 for a sliding fit of the flywheel shaft. It will be held in position with 6-40 setscrews.



Parted off both cranks then it’s off to the mill.



I switched to a v-jaw on the vise and then indicated center.



The second hole for the crank pin was spot drilled, drilled and reamed .249 for a press fit.





Next, the cranks were smoothed out with the face mill.



I placed the cranks upright in the vise and used a 1-2-3 block to align the two holes, close-enough, to vertical. At one point, I was going to make a fixture with flat sides and dowel pins which would slip into the holes. I’d then chuck up the DTI to adjust for a vertical orientation. Never happened. Close-enough here won’t impact the operation of the engine.



After finding the centerline, I used a .50” ball end mill to remove what shouldn’t be there.





Quality time with Oliver to smooth out tool marks and to round over the sharp corners.



Two more parts for the “finished” box.



Next, two aluminum spacers, 1.25” diameter. These slip on the rotary valve between the valve block and the cylinders.



After drilling and reaming to .501”, both spacers are parted off.



Since the bearing towers are .5” wide and the bearings are .25” wide, I needed a filler to take up the space. I turned these to .001” over the I.D. of the ring. The center hole is .015” oversize so there isn’t any chance of interference with the shaft. When I looked at this picture, I realized that I need to do more fettling to blend the ring with the base.



Here’s the filler ready to press in.



And pressed.



The housing, flipped over with the bearing ready to go under the press. Anxious to see how these acetal bearings work out. They are supposed to be “No-lube” under 2500 RPM.



Two more for the “finished” box.



The cranks after sanding and polishing. The hole being done here will be for the 6-40 setscrew to affix the crank to the shaft.



Family portrait of all parts.



The shafts, after press fitting. Tomorrow, I’ll assemble everything and drill the intake and exhaust ports in situ.

Then, get some air in it and see if it’s a runner.










Best,
Stan

Offline Don1966

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Re: Liney RV-1 - A New Double Wide
« Reply #46 on: November 01, 2013, 01:48:02 AM »
Liney RV-1 - A New Double Wide

Part 7

Everything Else


I know you all missed having this captivating build log yesterday, so I did a major push today. All parts are made.


Yea Stan, please don't do that to often man, your giving us the DT'S.  :lolb:
Looking good bud. I see your making good use of the die filer, I know I love using mine. Waiting for the next fix.

 :cheers: Don

Offline Kim

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Re: Liney RV-1 - A New Double Wide
« Reply #47 on: November 01, 2013, 03:46:09 AM »
Boy, you did make a lot of progress today! And it's looking great! :ThumbsUp: :ThumbsUp:
Can't wait to see it run tomorrow :)
Kim
« Last Edit: November 01, 2013, 01:52:21 PM by krt2 »

Offline sshire

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Re: Liney RV-1 - A New Double Wide
« Reply #48 on: November 01, 2013, 04:53:47 AM »
Don
The die filer is one if the best buys ever. I use it a great deal and it does a much better job than I can by hand. I'm amazed by some of the guys here and their skill with a file.

Kim
You can't wait to see it run? I'll be in the shop early.
Best,
Stan

Offline b.lindsey

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Re: Liney RV-1 - A New Double Wide
« Reply #49 on: November 01, 2013, 11:46:16 AM »
Great update Stan....really looking forward to seeing it run!!  Are you going to do any detail painting on it or just leave it all polished?

Bill

Offline sshire

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Re: Liney RV-1 - A New Double Wide
« Reply #50 on: November 01, 2013, 11:53:20 AM »
Thanks, Bill.
I'm thinking black base, red flywheel middle with the outside polished. All else, shiny.
Best,
Stan

Offline b.lindsey

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Re: Liney RV-1 - A New Double Wide
« Reply #51 on: November 01, 2013, 12:03:11 PM »
Sounds good to me....guess we will give you till tomorrow to get that done though  :lolb: :lolb: :lolb:

Bill

Offline sshire

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Re: Liney RV-1 - A New Double Wide
« Reply #52 on: November 02, 2013, 03:17:25 AM »
Final build log tomorrow but....
IT'S A RUNNER!  :pinkelephant:
Now I have to take it apart, polish, paint, fettle.
<a href="https://www.youtube.com/watch?v=b4tYOLHrPJs" target="_blank">http://www.youtube.com/watch?v=b4tYOLHrPJs</a>
« Last Edit: November 02, 2013, 02:03:00 PM by sshire »
Best,
Stan

Offline stevehuckss396

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Re: Liney RV-1 - A New Double Wide
« Reply #53 on: November 02, 2013, 11:38:15 AM »
How did you do on air pressure? Was it lower than you thought it would be?
Do not be like the cat who wanted a fish but was afraid to get his paws wet.

Offline b.lindsey

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Re: Liney RV-1 - A New Double Wide
« Reply #54 on: November 02, 2013, 11:47:06 AM »
Fantastic!!  Congrats Stan on another fine model!! Will look forward to seeing the final pictures and review.

Bill

Offline sshire

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Re: Liney RV-1 - A New Double Wide
« Reply #55 on: November 02, 2013, 02:01:09 PM »
Thanks, Bill. I had some major binding at first assembly. After screwing around with it for hours, I've now got it running very smoothly. After painting and polishing, I'll run it for an hour or so to see if I can get it down from the 15 psi it needed in the first few minutes I ran it.
Best,
Stan

Offline sshire

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Re: Liney RV-1 - A New Double Wide
« Reply #56 on: November 02, 2013, 02:02:05 PM »
Steve
As I posted to Bill, I needed 15 psi to run it. Hoping for a major reduction after running in.
Best,
Stan

Offline b.lindsey

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Re: Liney RV-1 - A New Double Wide
« Reply #57 on: November 02, 2013, 02:29:16 PM »
That doesn't sound bad at all for a first run !  After running in I would expect maybe 8-10 psi but could be even better than that. I'm actually not even sure what it takes to run the 1X version, I'll have to check that.

Bill

Offline sshire

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Re: Liney RV-1 - A New Double Wide
« Reply #58 on: November 02, 2013, 04:58:56 PM »
Bill
At least we know that a straight 2x conversion works. For your class project, are you going 1x?

Hey! I could be your guest lecturer. I've had 33 years practice and my AFT Local 2026 membership is still good.
« Last Edit: November 02, 2013, 05:03:33 PM by sshire »
Best,
Stan

Offline Don1966

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Re: Liney RV-1 - A New Double Wide
« Reply #59 on: November 02, 2013, 05:05:31 PM »
Hey it actually runs..... :lolb: Nice job Stan I like............ :ThumbsUp:



 :cheers:  Don

 

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