My Dnepr MT-11 Story

Are ya having a problem with your rig? We'll try to help. Share your tech tips and experiences here. Dr. Billy Glaser, author of the "Unofficial 750 Ural Service Manual" site myural.com, is moderating this section.
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Here is the place for you to ask questions about or share your experiences about servicing or repairing your Ural or Dnepr. Please post topics concering modifications or accesories in the "Modifications and Acessories" section. Please post oil related questions in the "Oil Threads" section.
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Orangecicle
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Re: My Dnepr MT-11 Story

Post by Orangecicle » Tue Mar 10, 2020 7:36 pm

Any clues where I might find a second idiot light mount for my K750 headlight bucket?

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brianural
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Re: My Dnepr MT-11 Story

Post by brianural » Thu Mar 12, 2020 10:10 am

On my MB-750 the left is the gen light and the right (your empty hole) is the fuse holder. You can get the fuse holder from East Highway, but its a bit expensive 22.40euro (in my opinion) Part number 72184010..The left side is a lens 11 euro (3711104) also available at east highway, if you are just trying to fill the hole and not keep original. https://easthighway.com/eng/tooted.c/electricity-k750
2011 HD RGU
2003 Honda VTX1800 - sold
2005 Honda VTX1300 - sold
Bunch of other metric bikes for last 45 years
"1966 titled" Dnepr MT-11 (reality is a 80-90's)
1956 IMZ M72 bought in pieces, working on build
1967 KMZ MB-750

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Orangecicle
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Re: My Dnepr MT-11 Story

Post by Orangecicle » Thu Mar 12, 2020 5:52 pm

brianural wrote:
Thu Mar 12, 2020 10:10 am
On my MB-750 the left is the gen light and the right (your empty hole) is the fuse holder. You can get the fuse holder from East Highway, but its a bit expensive 22.40euro (in my opinion) Part number 72184010..The left side is a lens 11 euro (3711104) also available at east highway, if you are just trying to fill the hole and not keep original. https://easthighway.com/eng/tooted.c/electricity-k750
Cool resource. Thanks!

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Orangecicle
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Re: My Dnepr MT-11 Story

Post by Orangecicle » Sat Mar 28, 2020 1:34 pm

What's everybody else doing? I'm finally getting enough time to finish a few parts. The little toolbox door is the most complex part I've ever made. It has an inner layer that matches the curve of the gas tank, an outer layer that is flat, and a carbon fiber piano hinge down one side to give it a mount point for the tank. Whew!

The other part is just a taillight spacer . . . that no one will ever actually notice. The spacer matches the outer curve of the fender on the inside and the inner curve of the Porsche taillight on the outside. Double-sided parts are so much fun. :sarcasm: :glare:

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jaybird
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Re: My Dnepr MT-11 Story

Post by jaybird » Sat Mar 28, 2020 3:43 pm

Nice looking work!

Happy trails,
Jaybird
2005 Gear-Up, Mr. Nat_ural 108,000+ Kilometers and counting
2013 Retro, Black beauty, AKA Lucky "13"
1995 Olive Tourist
1975 Enfield Diesel Bullet
2008 Enfield Bullet 500
1974 BMW R 75/6
Etc.

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Orangecicle
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Re: My Dnepr MT-11 Story

Post by Orangecicle » Sat Mar 28, 2020 10:52 pm

More pics of the little door and its hinge. This was the tricky bit. I had very little room to work with to mate up with the tank mounts, so I made little carbon fiber "straws" and then shaped them to fit around the existing mounts. I made the straws by wrapping carbon around the metal leg of my wife's "Garage Sale" sign. Because the little leg was the perfect size for the carbon straws, the sign had to donate a leg to finish out the piano hinge. The tank and hinge bits will all be gloss black in the end, so it should all blend pretty well.

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Orangecicle
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Re: My Dnepr MT-11 Story

Post by Orangecicle » Sun Mar 29, 2020 6:21 pm

{Cross posting from another thread I started specific to this question.}

I started tearing into my MT-11's gearbox today to try and solve a leak. It has been slinging oil onto the sidecar, which suggests to me that it was the output shaft seal. I bought one of those, which did not come with the extra O-ring that I know understand could be the culprit. Before I change out the shaft seal, I thought I should ask about other leaks. It looks like the clutch actuator is leaking, so I assume this O-ring is shot. I've seen Ural owners put in Ace Hardware SAE O-rings that are slightly larger than standard, but I thought I should ask for the best advice here. Based on the amount of oil, I'm also not sure if the small bit below the clutch actuator is leaking. {Not entirely sure what that bit does and if it is prone to leaking.}

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I think the output shaft seal is shot based on the line of oil that's been coming down from that area, but I'm concerned about the missing O-ring. Is there a particular size of O-ring I should search for in the US before taking next steps?

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Lastly, it looks like there is a small leak on the other side of the gearbox. I believe based on the schematic that this is the starting shaft bushing. The leak seems minor, but I thought since I'm here that I'd get best suggestions of what to do. There is no oil on the clutch; just a minor drip out the bottom through the weep hole at the front of the gearbox.

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As always, thanks. Stay safe out there during the pandemic.

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Orangecicle
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Re: My Dnepr MT-11 Story

Post by Orangecicle » Fri Apr 03, 2020 1:20 pm

Just in case this is useful to anyone: My clutch rod pusher was leaking on the back of my gearbox. The stock O-ring had either compressed or was just too small -- it was the same size as the barrel of the pusher, so it wasn't sealing anything. I found a potential solution on another thread, and it looks like it will work. I can buy this at the local Ace Hardware:

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It's a snug fit because the SAE 1/8" O-ring is slightly larger than stock, but I think it is going to work.

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Orangecicle
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Re: My Dnepr MT-11 Story

Post by Orangecicle » Sat Apr 04, 2020 10:53 am

I finally got the gearbox on the bench. Everything came apart pretty easily. The main drive fork looks good. No groove cut in the shaft, so I just had a bad seal. I went back with a seal that has a double lip, so maybe it will fair better than the original: https://moto-boxer.com/product_info.php ... ts_id=2006

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Note the wear on the speedo drive . . . do you call this a worm gear??? Anyway, either the machining was really, really poor, or the gear wasn't meshing properly at some point in its life. I tried to clean it up a little with a file before reinstalling.

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Going back together after a little de-greasing.

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Many, many thanks to dneprlover for his guidance.

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Macabry
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Re: My Dnepr MT-11 Story

Post by Macabry » Sat Apr 04, 2020 3:47 pm

Good to see you progressing well with the project :lurker:
"There are only three sports: mountain climbing, bull fighting, and motor racing. All the rest are merely games"

History:
Honda C70, Honda C90, Mobylette (various), Suzuki GP125, Suzuki DR100, Suzuki DR400, Suzuki GN400, Dnepr K750 rig, BSA M20 (1940),

Current:
IMZ M61 - exact year unknown (Reg'd as 1961)
Suzuki DR400 (Basket case)

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Orangecicle
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Re: My Dnepr MT-11 Story

Post by Orangecicle » Sat Apr 04, 2020 10:31 pm

Macabry wrote:
Sat Apr 04, 2020 3:47 pm
Good to see you progressing well with the project :lurker:
The one upside of a global pandemic I guess. I hope everyone is staying safe out there.

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Orangecicle
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Re: My Dnepr MT-11 Story

Post by Orangecicle » Sat Apr 04, 2020 11:02 pm

One other project mostly completed today. My pup refused to climb into the sidecar because he was scared of falling through the sidecar frame. I had a piece of thick stainless, so I made him a better step. I just need to find some good stick-on tread material.

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Orangecicle
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Re: My Dnepr MT-11 Story

Post by Orangecicle » Sun Apr 05, 2020 11:59 am

Finally turning to bodywork. I love the smell of body filler first thing in the morning.

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Re: My Dnepr MT-11 Story

Post by Orangecicle » Mon Apr 06, 2020 10:32 pm

Soooo much sanding to do.

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Re: My Dnepr MT-11 Story

Post by Orangecicle » Wed Apr 08, 2020 10:19 pm

Etching primer is finally going on. This is my first time using Cromax in cans. Fingers crossed! :)

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