Author Topic: Rebuild time for my Upshur single  (Read 6918 times)

Offline Art K

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Rebuild time for my Upshur single
« on: March 02, 2020, 01:55:48 AM »
Hi all,
I have been working out in the shop a bit lately. Towards the end of last summer I decided it was time to pull my Hamilton Upshur based vertical single apart and figure out why it was running so bad. This is what I found.


You can see in the first photo the spots on the rod where it was hitting the cylinder & cam. On the cylinder you can see the contact point, there's a matching one on the top side you cant see in the photo. On the crank the rod throw is .003 under on the high points so a new crank is also in order. In the bottom photo you can see the .040" oblong. No fix but a new one there as well. I have made a start on some of this and will post my progress as I am able. I have a link to the other forum that I posted soon after joining there.
https://www.homemodelenginemachinist.com/threads/my-first-engine.18599/
I have made a lot of changes over the years, all have made it better or solve self inflicted problems.
Art
« Last Edit: March 08, 2020, 03:55:50 AM by Art K »
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Offline kuhncw

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Re: Rebuild time for my Upshur single
« Reply #1 on: March 02, 2020, 09:15:06 PM »
Hi Art,

Which grade of aluminum did you use for your original connecting rod?

Chuck

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #2 on: March 02, 2020, 09:48:39 PM »
Chuck I think it was probably 6061 t5. But I also bored it over size & filed the cap down to compensate.
Art
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Offline Brian Rupnow

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Re: Rebuild time for my Upshur single
« Reply #3 on: March 03, 2020, 01:12:05 AM »
Art was up to Canada last summer, and stopped by for a visit. He had brought a couple of his engines with him, and ran them for me. Very nice little engines. I think the engine featured here was one of them.--Brian

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #4 on: March 03, 2020, 03:31:47 AM »
Brian,
Yes this was one of the engines I brought along last summer. Soon after getting home I started to dismantle it. I turned a blank on on the lathe to make a new cylinder head. I left the diameter and the top oversize, then left the .040" on top to give the valve guides a little extra. The bottom looks like this. The top despite being stranded in the chuck in the rotary table for 5 months I never got a photo of.

When I got my Tormach it came with a Dell PC. When I switched to Path Pilot I couldn't use that PC any more. I had a used computer built at 1/7 the price of the Tormach unit. Well in August or September the power supply blew taking the mother board with it. My computer guy had one to replace it but couldn't set it up properly (or understand why I'd want it set up that way). On top of that he was out due to surgery, had a hard time getting caught up with it. In the end I drove 3 hours dropped it off for my nephew to look at and took it home with me 3hours later, two weeks before Christmas.
I used the 4 holes on the bottom surface with screws cut off to locate it and bolted it down through the valve guide holes.

This is what it looked like after the roughing pass.
Art
« Last Edit: March 08, 2020, 04:00:17 AM by Art K »
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Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #5 on: March 04, 2020, 02:10:52 AM »
The next thing I did was to switch to the "high speed spindle" and machine the cooling fins. This is the end result.


This job took 5 and a half hours...just kidding but I did do a dry run so I did sit and watch the machine for that long. I used a .047" end mill and cut to a depth of .362" 20,000rpm@35 IPM and .0015" per pass. Theoretically Sprutcam thought it should have taken 30 minutes less, but didn't take into account the time it took to slow down going around radius & corners.
I will slowly post what I have done and get you all caught up. I am still pondering how much I want to do, for example I think the rod hitting the cam specifically damaged the exhaust valve but do I want to replace that now or later. I think time will tell as I intend to have it running for the NAMES show.
Art
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Offline awake

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Re: Rebuild time for my Upshur single
« Reply #6 on: March 04, 2020, 09:16:22 PM »
Beautiful!

Sent from my Lenovo TB-8504F using Tapatalk

Andy

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #7 on: March 05, 2020, 01:27:48 AM »
Andy,
Thanks for following along, it's good to know that people are keeping track of what I'm working on. I have made a few other parts like tappets & guides as well as manifolds that I can press into the head and bolt the carb & muffler onto.

These are the lifters and guides. I am planning to redo the lifters because I put divots in them when I chucked them on the second side to face them to length.

This is the family photo so to speak. With the new & old head side by side. I am missing a photo so I will have to add one later. The aluminum bits are the press fit manifolds that I've done the oval treatment to and drilled & tapped 2-56. this now gives me a platform to bolt on anything on that I can make an attachment for. previously to remove the carb, manifold ect. I had to twist it out with a pliers.

This is what it looked like at the 2019 NAMES show. I've had the intake straight out 90 degrees down as designed and as shown in the photo. I only set it up this way cause I didn't like it spitting gas under the carb. More later, please if you have any questions, ask.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline AlexS

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Re: Rebuild time for my Upshur single
« Reply #8 on: March 07, 2020, 07:37:48 PM »
Great job of your start on rebuild this engine! May I ask how your build en designed the PCV on your crankcase? I have to build that for me engine soon. Are you redesign the conrod or cylinder so they don't hit each other? This engine is a full plan build or own design? I am wondering what reason is if it is a plan build.

Greets Alex Succes! :wine1:

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #9 on: March 08, 2020, 03:38:40 AM »
Alex,
If I understand what you are asking about the PCV, you are asking about the crankcase ventilation? If so that would be the round brass cap with holes in it. This is just behind the cylinder in the previous photo. It is where Hamilton Upshur designed it in a dry corner. Its just stainless tubing with one end pressed into the case & the other into the hollow brass breather which has green scrubby pad wrapped around the inside. I wasn't planning to change any of the internals. There was only a problem when the rod wore and then shifted a portion of the rod with a larger diameter upwards. There is clearance for the point where the rod is designed to pass, but not the larger diameter. I had thought about redesigning the rod but because of the restricted clearance inside opted to go as designed.
« Last Edit: March 08, 2020, 04:45:17 AM by Art K »
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Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #10 on: March 08, 2020, 04:43:00 AM »
Ok I had said I was missing some photo's earlier, so here they are. After doing the cooling fins I flipped the rotary table so the holes around the diameter could be done. Here are the manifolds pressed in as well.


Pressing the manifolds worked really well. I mounted the fixture in an angle plate lined up the holes with the 1/4 shank of an end mill then the manifolds with a 3/16 drill and pushed them in right on the drill press. The hardest part was trying to line up the 2-56 holes straight.
Then I moved on to the crank. I had a piece of 1144 so I cut and faced it to length. Mounted it in the v-block indicated it center drilled the two centers. Then flipped it and repeat. I was then able to use a lathe dog and turn the crank throw.

I used a standard cutoff tool to rough it out.

Then spent what seemed like forever on my wimpy grinder making a tool that could cut the rest of the groove. It started out as 1/4 X 3/4 I was concerned but it worked great, I needn't have worried. Today I spent spent turning the gear side of the shaft with it's three diameters .329 for  the gear .315 for the bearing and .3125 for the shaft.

Well I think this is enough for now.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline Don1966

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Re: Rebuild time for my Upshur single
« Reply #11 on: March 08, 2020, 08:12:07 PM »
That looks great Art!!....


 :cheers:
Don

Offline AlexS

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Re: Rebuild time for my Upshur single
« Reply #12 on: March 08, 2020, 08:14:03 PM »
Thanks for reply Art!

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #13 on: March 09, 2020, 12:28:33 AM »
Don,
Thanks it's great that people are following along.
Alex,
I hope that my info was helpful. I originally didn't want it there, thought it would clutter the cover. I now have a nice oil filler plug in my first choice. Think about rotation of the engine, where splash lubes will push the oil. Right where I put it. :wallbang:
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline Brian Rupnow

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Re: Rebuild time for my Upshur single
« Reply #14 on: March 09, 2020, 12:44:51 AM »
Okay---I have to ask---What is holding the hex nut in place between the cheeks of the crankshaft? I don't see any glue (I use a hot melt glue gun). Sure hope you didn't just wedge it in there.---Brian

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #15 on: March 09, 2020, 02:13:17 AM »
Brian,
No I don't have a Whitworth nut embedded in my forehead and yes it is sort of a snug sliding fit, it also has the pressure of the center keeping it in place. I did the same on the previous crank. I did wonder if someone would point it out. Guess that means you get the prize. :DrinkPint: I spent a lot of time this weekend trying to figure out how to not cut air for the .3125 in between the two throws. It's over my head, maybe if I had sprutcam lathe? & could save the simulation from there. :headscratch:

I never thought I'd say I wish I had more vertical space on my mill. Thought I was going to have to borrow a 3/8 collet from work but realized I could just fit it in on the centering indicator.

Here is the mill doing its thing. I did dry run it first, I was worried that it was chattering to much while it ran the top but it was the same on the bottom. I was glad that I had decided to do two .010 finishing passes.

Here is the end result, wish I had a smaller cutter to do the inner radius but you gotta use what you got. Next is turning the flywheel side of the crank. That'll give me more to report later.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline Brian Rupnow

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Re: Rebuild time for my Upshur single
« Reply #16 on: March 09, 2020, 12:22:31 PM »
It is really amazing how flexible these small crankshafts are. I generally never have anything the right size for a "precision slide in fit" on the crankshafts I make. I generally have to machine something to get the right size, and then I attach it with hot melt glue.

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #17 on: March 09, 2020, 12:44:30 PM »
Brian,
I did need to clean it up with some 600 grit wet / dry for the right fit. Dont want it all wobbly when it's done.
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline Brian Rupnow

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Re: Rebuild time for my Upshur single
« Reply #18 on: March 09, 2020, 05:58:33 PM »
It's looking really good. ---Brian

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #19 on: March 11, 2020, 02:35:46 AM »
Brian,
Thanks, I didn't get much done yesterday but I did rough down that side to around .625 the first dimension I need is .5. I think it has cooled off by now.
Art
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Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #20 on: March 17, 2020, 03:08:41 AM »
Ok since the cancellation of the names show I've stopped bending over backwards to finish the Upshur before the show. And yes the other shoe did drop ACA canceled the conference my wife intended to go to, so no more trip to San Diego the week before names. But I haven't sat still, I did finish the lathe portion of the crankshaft.

Just threw a convenient book in for a nice background.

This is the other bit I've been tinkering with. It has been giving me fits. I used steel inserts in the cylinder to mount the head to the cylinder, but I think they are off center. I have to mount it in this alignment so the holes all cooperate.
Here's a question for the folks out there who have a knack for carburetors. I have the plans for Gerry Howell's carb, But Its to big, the intake is.25" and I need it around .170". Experience has shown me that even .198" is to big. Can I use the dimensions for all the jets, bore ect and just change them the needed % down, or can I leave everything the same and just drill the bore smaller? Any thoughts?
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline Admiral_dk

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Re: Rebuild time for my Upshur single
« Reply #21 on: March 17, 2020, 11:24:34 AM »
Your new part looks great  :ThumbsUp:

If your carb has an ajustable needle - I would leave the "jets" the same size as it should need the same amount of fuel .... but as the sucktion increases, it will try to get more through the same "jets" .... (not nessesary possible).

Best wishes

Per

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #22 on: March 26, 2020, 01:57:29 AM »
Hi everyone,
I'm back, I spent a lot of time last weekend working on a new muffler for the Upshur. I would have neglected to take photos of the individual parts but for one thing. My propane torch didn't throw enough heat so I could properly silver solder it.

So now I will have to pull out the big guns, I have an oxy-acetylene torch that I will now have to dig out of its corner of the garage behind my motorcycle. this is what the parts looked in their pristine condition.

This will be the end result. I will still need to clean up the ends, as I left them oversized.

I have heard people talk of a pickling solution to clean up after silver soldering. What is that? some sort of acid? Any help would be appreciated.
Art
« Last Edit: March 26, 2020, 02:03:45 AM by Art K »
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Offline awake

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Re: Rebuild time for my Upshur single
« Reply #23 on: March 26, 2020, 01:08:07 PM »
I am the furthest thing from an expert, since my soldering skills are near-zero. But I've seen people talk about using citric acid. If you can get to the store in these days of pandemic, you might find the citric acid powder in the same section as vinegar and such. Or if there is a section devoted to canning, it should be there.

Unfortunately, I don't know how strong of a solution people use ... hopefully someone who actually knows soldering will chime in!
Andy

Offline Brian Rupnow

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Re: Rebuild time for my Upshur single
« Reply #24 on: March 26, 2020, 03:03:35 PM »
Buy citric acid powder at the grocery store. Start with half a quart of warm water in a jar.--Keep adding powder and stirring until the water is fully saturated and no more citric acid will dissolve.  Leave soldered parts in it for no longer than half an hour. Make sure they are totally submerged. Then remove parts and scrub them under the water tap with a small brass bristled brush and dish soap. Rinse off with clear water when finished. Note that this treatment is for after silver soldering, not before.

Online Kim

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Re: Rebuild time for my Upshur single
« Reply #25 on: March 26, 2020, 04:37:59 PM »
I use Sparex for a pickling solution.  It's supposed to be somewhat less toxic than the traditional sulfuric acid pickle solution.  But I'd still be careful with it.  It's still acidic.

Kim

Offline Ian S C

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Re: Rebuild time for my Upshur single
« Reply #26 on: March 26, 2020, 11:57:20 PM »
I use citric acid, it does the job, maybe a bit slow for some people,but its safe and harmless .    Ian S C

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #27 on: March 27, 2020, 02:11:03 AM »
Thanks everyone who replied, I will try and get some citric acid. This is a job for this weekend I think. I do have the brass wire brush to clean it with, so I will give it a try.
Art
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Offline Ian S C

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Re: Rebuild time for my Upshur single
« Reply #28 on: March 27, 2020, 09:49:34 AM »
Art, get it (the powder) from the supermarket, or the Home Brew shop, at one time I got quite a big bag of it at the garden  shop, it's quite cheap, if you cankeep it warm it will act quicker,

     Ian S C

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #29 on: March 30, 2020, 01:37:37 AM »
Brian & Ian,
Thanks for your suggestion of citric acid and how to use it. It worked, to good effect this weekend. It did take a bit of practice to get it down but, I did get the muffler done. So much for all the photos I was going to post, Post Image had this message up when I went to their website. "Server is under maintenance, sorry for inconvenience. ETA ~1 day" Soooo I guess I won't post photos til tomorrow. Some things I can say without photos. This was a learning experience. I couldn't get enough heat from the propane torch to melt the silver solder. So I moved things around in the garage to move the oxy-acetylene torch. First lesson was prep everything in advance so you aren't waving the torch around trying to put flux on the rod and melting the baffles of what I'm trying to weld. I didn't realize what I was doing till I heard the tink of the fallen part. To get the two baffle sections with 26 holes I went through 12 inches of the .190id X .210od tubing. That's for about 5 inches worth. I also ended up being glad I made 3 mounting flanges because I used them all. Ended going from # 1 to a #0 tip I'd have saved myself some grief if I had checked for that one in the first place. I would like to have another go at some of the joints but would rather leave it as is than blow it, so it's done. More later.
Art
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Offline Brian Rupnow

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Re: Rebuild time for my Upshur single
« Reply #30 on: March 30, 2020, 01:49:57 AM »
Good Show Art.--Isn't it great to keep on learning stuff. I fought that same fight when I built my first model engine in 2008. I simply couldn't get enough heat out of a propane bottle to work with silver solder. I immediately went to my oxy acetylene rig, and it has worked like a charm.---Brian

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #31 on: March 30, 2020, 02:28:15 AM »
Brian,
I must say there is something good about inheriting stuff from your parents.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #32 on: April 01, 2020, 03:40:02 AM »
Ok now that Post Image is back up and running I've got some photos.

I tried to solder the two short ends of the baffle pipes into the end caps to begin with.
Then I used some stock smaller than the center section of tubing to bend the solder around so I had a round piece to set inside the end of the tubing. Heating up the end cap till the solder melted. This worked very well. Then I did the same for the opposite end with an additional piece around the tube that goes through the end cap. Then heated that end. Here is the muffler to that point.

Then I soldered the mounting flange onto the remaining long end. This allows me to mount this to the head.

After some cleaning up, turning the OD of the end caps to size and radius on the corner here is the end result.
I think My next project is the connecting rod, but I need to figure out where the shop elve's have hidden the piece of 7075 I had set aside for the rod. I also am intending to bronze bush the rod bearing. Otherwise I think I will leave Hamilton's design alone.
More later.
Art
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Offline MJM460

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Re: Rebuild time for my Upshur single
« Reply #33 on: April 01, 2020, 04:10:27 AM »
Hi Art, that looks like a really nice job of that silencer.

It will be interesting to see how effective it is when run time comes.

MJM460

The more I learn, the more I find that I still have to learn!

Offline awake

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Re: Rebuild time for my Upshur single
« Reply #34 on: April 01, 2020, 04:16:02 AM »
Very nice!
Andy

Online Kim

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Re: Rebuild time for my Upshur single
« Reply #35 on: April 01, 2020, 05:38:30 AM »
Beautiful soldering job!  And a very nice part!  :ThumbsUp: :ThumbsUp:
Kim

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #36 on: April 01, 2020, 11:50:23 PM »
Kim, Awake & MJM,
Thanks, now that I'm not at work anymore I can reply. I must admit it was a tedious process but the result was good. I did end up chucking it up in the 4 jaw to clean up the ends, yes I did heat one end to hot.
Art
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Offline philjoe5

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Re: Rebuild time for my Upshur single
« Reply #37 on: April 02, 2020, 12:34:58 AM »
Nice work Art and it was great talking to you.  I have some more of that silver solder if you need it

Phil
If you pick up a starving dog and make him prosperous, he will not bite you. This is the principal difference between a dog and a man.  - Mark Twain

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #38 on: April 02, 2020, 11:02:40 PM »
Phil,
Thanks, it has been quite a project. In originally intended to finish it by names but that's not happening, maybe the Badger Steam & Gas show in August? Sure I can use more solder we can talk again when we're closer to coming out in July.
Art
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Offline Craig DeShong

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Re: Rebuild time for my Upshur single
« Reply #39 on: April 12, 2020, 08:24:50 PM »
Hi Art, just catching up on this project.  Great progress, it all looks great.
 :popcorn: :popcorn:
Craig
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Offline Brian Rupnow

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Re: Rebuild time for my Upshur single
« Reply #40 on: April 12, 2020, 09:01:59 PM »
Art--You have done a beautiful job on that muffler. I made one for my flat-head engine, and was quite surprised about how effective it was.---Brian

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #41 on: April 13, 2020, 03:50:36 AM »
Ok, I haven't sat completely still. I have been redesigning the cam. Trying to keep everything on center-line with the crank and the cylinder and block.

This is the finished cam blank. I did have one minor mishap, after finishing the first side pulled it out of the lathe to realize I had turned the wrong end and had to drill & tap the other end 4-40 as well. I just picked the wrong end of the print to read first. I am still thinking on what I want for a cam profile. I might add a larger nose radius to it and leave everything else the same.
Art
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Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #42 on: May 03, 2020, 02:57:22 AM »
Hi everyone,
After some problems I now have a new cam. I had the program written two weekends ago but, I had some problems with my mill and couldn't run it. I couldn't zero the Z axis on the mill. I had even run the program an inch above the part, dropped it down & had to shut it down before it crashed. At that point if I zeroed it, it changed the number to .3645, if I tried to edit the number it was changed to something like .3625. The program runs between Z0 and .073. At that point I gave up and asked my nephew if he could send me my PathPilot flash drive, which he did. I had intended to re install the PP operating system and updates and try again. A week later it still hadn't arrived. He's going to check on it and find out where it is. This morning wanting to finish the cam I fired up the mill and presto it worked, so the end result is this cam.

The dimensions are straight out of CamCalc. I had designed a different cam profile for the exhaust cam, but after the intake cam machined properly I didn't want to take a chance Murphy would show up and screw up my cam. So the settings in CamCalc you see in the upper left hand of the photo are the ones used in both. It was a lot of work to add 180 steps to the program but it does work, takes about 24 minutes and with a little editing will work on any cam profile. Adjust Z Y & X and you're ready to go. If anyone is interested let me know I will pass it on for others to use. I know it works on my Tormach and you would need a 4th axis these are my only disclaimers.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline ironman123

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Re: Rebuild time for my Upshur single
« Reply #43 on: June 15, 2020, 12:32:30 AM »
Great work on the rebuild Art.   What is the distance between the cams?  Not sure if it was 0.250, 0.281.  I don't have my plans anymore.   I know I loaned to them to someone that wanted to build one after seeing mine.   To many years gone by.  Don't remember who it was.   I could get it close by measuring ctc between the cam followers on my engine and adding about 0.128 on each side of that.

I am wanting to redo my camshaft also.   When I built mine I remember the lobes were not the same, now I want to correct that.
Ray
Central Texas

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #44 on: June 15, 2020, 01:37:00 AM »
Ray,
I have slowly been working on the rebuild. I lately have been working on a new rod. It has been hard to get motivated to do anything on it recently. Work has been crazy busy and we are slowly treading backwards. I looked on the blank in Alibre and I did a centerline in the middle of the cam to center it on the crank and the block. The cam blanks are .230 wide and .145 from the center to the edge of the each of the cam lobes that comes to .290. I didn't open the magazine to look but I did design the cam based on the print. If you need any info to make a new cam I could help you with the prints as I have the Strictly I.C. magazines yet. If you have a cnc I have the program I used to make my cam lobes. If you don't like that profile you can go to Cam Calc figure out what you want and change my settings to suit your needs. If that would be helpful send me a PM and I'll send it to you, or any other info you need from the print.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline ironman123

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Re: Rebuild time for my Upshur single
« Reply #45 on: June 15, 2020, 02:33:51 AM »
Thanks Art.  I do have a cnc milling machine.    I just ordered the plans for the engine from Upshur Engine Works for $10.55     I figured that was easier than using all my brain power to try and remember who I loaned my other plans to.   I made my other cam using the Gene Switzer Cam Grinding Fixture I built many many moons ago.  I bought the SIC issues 39, 40, 41 to build it.  That is a long story.   I boxed it up and it is stored in my shop loft, I got into steam engines, rc boat building (mainly tugs and coastal fishing trawlers), then into wood turning (bowls mainly)  now I am back into machining and rebuilding some of my engines.
Ray
Central Texas

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #46 on: June 15, 2020, 02:57:58 AM »
Ray,
The cam grinder sounds like a great idea. There was one in SIC but, I've not got to the point I think it's a necessity and made it. Good luck getting it going again.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #47 on: July 04, 2020, 02:45:20 AM »
I realize I haven't done anything here for a bit but, life has gotten in the way. Work has been the busiest in my memory. I have gone from four tens to five. This week we had a Covid 19 scare. I did get tested as well as the bosses. My test come back negative. The person we're most concerned about and was asked not to return for the safety of the rest of the employees will get his results Monday or later, same with the bosses.
I intended to spend time this holiday weekend working on the rod for the Upshur rebuild. So instead I'm ordering a new power supply for the cnc computer and hoping that is all that is wrong. Let you know as I do.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Online Kim

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Re: Rebuild time for my Upshur single
« Reply #48 on: July 04, 2020, 04:20:21 PM »
Glad to hear your test came back negative, Art. Hope the same positive outcome for the others involved. Having Covid-19 doesn't sound like a fun time!
Kim

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #49 on: July 04, 2020, 05:39:56 PM »
Kim,
Thanks, I know it's no fun. I've lost two elderly friends to this point. Don't want to see any more.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

Offline Art K

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Re: Rebuild time for my Upshur single
« Reply #50 on: July 12, 2020, 11:06:11 PM »
The last guy in the shops covid test came back negative, that's great. I installed the new power supply in the computer and got on joy. :-[ I have my nephew looking for the motherboard to set the computer up properly. Hopefully this wont take long. I want to get back moving on this rod and engine rebuild.
Art
"The beautiful thing about learning is that no one can take it away from you" B.B. King

 

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