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M63 ressurection

Ural

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#31 Mike Goldthorpe

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Posted 08 May 2014 - 12:11 AM

Hoping the link works - here's an M63 article I found in a 1976 magazine (guy bought his bike in 1971)
http://b-cozz.com/ol...idecar-article/

#32 luca.stere

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Posted 16 May 2014 - 02:53 PM

View PostMike Goldthorpe, on 08 May 2014 - 12:11 AM, said:

Hoping the link works - here's an M63 article I found in a 1976 magazine (guy bought his bike in 1971)
http://b-cozz.com/ol...idecar-article/

I can't acces this forum!


The work on the head cylinders, valves and guide valves are worn out and I have to replaced them:

Attached File  scoatere-ghiduri-supapa-vechi.jpg   120.94K   17 downloads

Attached File  ghid-supapa-spart.jpg   109.6K   20 downloads

Attached File  rsz_lacas-ghid-supapa.jpg   183.28K   20 downloads

A preliminary cleaning:

Attached File  chiulasa.jpg   162.14K   19 downloads

Attached File  chiulasa-2.jpg   143.17K   20 downloads

I have buyed new valves... not russian, not ukrainean, not chinese stuff. The exhaust valves are from a Mitsubishi engine and the intake valves are from a Fiat engine. The valves must be modified by a turner:

Attached File  supape-noi-ural-m63.jpg   109.73K   24 downloads

Attached File  supape-noi-ural-m63-3.jpg   154.52K   21 downloads

#33 luca.stere

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Posted 16 May 2014 - 03:10 PM

So, I have modified the valves, I have changed the guides valves with new ones and I have milled the valves seats:

Attached File  supape-auto--modificate-ural-m63.jpg   145.5K   15 downloads

Attached File  supape-auto--modificate-ural-m63-2.jpg   119.1K   19 downloads

Attached File  supape-auto--modificate-ural-m63-3.jpg   163.78K   21 downloads

Attached File  chiulase-cu-supape-auto-modificate.jpg   161.12K   21 downloads

Attached File  chiulasa-cu-supape-auto-modificate.jpg   158.81K   19 downloads

Attached File  rsz_chiulasa-cu-supape-auto-modificate-2.jpg   100.42K   17 downloads

Attached File  scaune-supape-frezate-ural-m63.jpg   88.27K   16 downloads

Attached File  supape1.jpg   54.54K   13 downloads

#34 luca.stere

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Posted 16 May 2014 - 03:18 PM

After this operations I have sanded the head cylinders and the covers:

Attached File  capace-culbutori-ural-m63.jpg   113.38K   11 downloads

Attached File  capace-sablate-ural-m63.jpg   84.17K   17 downloads

Attached File  chiulase-sablate-ural-m63.jpg   105.34K   19 downloads

Attached File  chiulase-capace-sablate-ural-m63.jpg   85.59K   17 downloads

#35 Mike Goldthorpe

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Posted 20 May 2014 - 05:59 PM

View Postluca.stere, on 16 May 2014 - 02:53 PM, said:

View PostMike Goldthorpe, on 08 May 2014 - 12:11 AM, said:

Hoping the link works - here's an M63 article I found in a 1976 magazine (guy bought his bike in 1971)
http://b-cozz.com/ol...idecar-article/

I can't acces this forum!


Hmmm....might need to join Bcozz.  Worth the trouble - has lots of information.  As MotoJ :-)  Join here http://b-cozz.com/ - hopefully the joining niggles are getting sorted!

#36 luca.stere

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Posted 21 May 2014 - 12:13 AM

View PostMike Goldthorpe, on 20 May 2014 - 05:59 PM, said:

Hmmm....might need to join Bcozz.  

No, it is not that the problem, the link doesn't work.

I have finished the engine, I will show the pictures later.

#37 luca.stere

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Posted 23 May 2014 - 01:11 PM

The stud for one head cylinder cover, it was made by a turner from a 10mm bolt:

Attached File  prezon-capac-culbutori-ural-m63.jpg   141.92K   18 downloads

Before, the cover had this solution, a stud fixed with two nuts:

Attached File  prezon-romanesc.jpg   66.15K   19 downloads

So I have made a bigger thread in the head cylinders for the new stud:

Attached File  filet-prezon-capac-ural-m63.jpg   113.11K   17 downloads

Attached File  filet-chiulasa-prezon-capac.jpg   123.6K   18 downloads

And I have assembled the valves:

Attached File  chiulasa-piese-montare-ural-m63.jpg   121.98K   19 downloads

Attached File  montaj-supape-ural-m63.jpg   110.78K   20 downloads

Attached File  chiulase-complete-ural-m63.jpg   121.31K   17 downloads

#38 luca.stere

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Posted 23 May 2014 - 01:23 PM

The rockers are in a very good shape, I just cleaned them very well. The chanel lubrication was almost clogged and I have clean it with a drill:

Attached File  rampe-tije-culbutori-ural-m63.jpg   121.46K   15 downloads

Attached File  curatare-rampa-culbutori-ural-m63.jpg   78.48K   20 downloads

Attached File  rampa-curatata-ural-m63.jpg   55.27K   18 downloads

Attached File  rampa-curatata-ural-m63-2.jpg   65.72K   15 downloads

Attached File  rampa-curatata-ural-m63-3.jpg   64.19K   14 downloads

The nuts were deformed and I have changed them with new ones:

Attached File  piulite-reglaj-culbutori-ural-m63.jpg   96.49K   12 downloads

#39 luca.stere

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Posted 23 May 2014 - 01:30 PM

Cylinder heads assembly:

Attached File  montare-chiulase-ural-m63.jpg   109.92K   13 downloads

Attached File  montare-chiulase-ural-m63-2.jpg   84.01K   16 downloads

Attached File  montare-chiulase-ural-m63-3.jpg   83.15K   13 downloads

Attached File  montare-chiulase-ural-m63-4.jpg   88.97K   9 downloads

Attached File  garnituri-capac-culbutori-ural-m63.jpg   76.17K   10 downloads

Attached File  montare-chiulase-ural-m63-6.jpg   81.15K   13 downloads


And the engine is ready:

Attached File  motor-complet-ural-m63.jpg   91.41K   19 downloads

Attached File  motor-complet-ural-m63-2.jpg   95.53K   25 downloads

Attached File  motor-complet-ural-m63-4.jpg   87.43K   24 downloads

Attached File  motor-complet-ural-m63-5.jpg   85.37K   20 downloads

Attached File  motor-complet-ural-m63-6.jpg   89.39K   15 downloads

#40 luca.stere

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Posted 23 May 2014 - 01:52 PM

I have buyed new 6V coil and a new ignition sistem:

Attached File  rsz_bobina-inductie-6v-ural-m63.jpg   80.18K   8 downloads

Attached File  rsz_aprindere-ural-m63.jpg   72.76K   10 downloads

Attached File  rsz_aprindere-ural-m63-2.jpg   79.63K   11 downloads

#41 luca.stere

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Posted 31 May 2014 - 02:05 PM

I have "opened" the gearbox in order to verify the parts inside. I was happy to see the parts inside in a perfect shape, I will chnge only the seals and the bearings but only because i have disassembled the gearbox. The only problems I have discovered is at the gear housing, a smart boy has made a hole for cooling the clutch but he did not think that the engine will work with unfiltered air, and the gears from the speedometer are worn out:

Attached File  cutie-ural-1.jpg   120.96K   25 downloads

Attached File  cutie-ural-2.jpg   143.48K   29 downloads

Attached File  cutie-ural-3.jpg   125.74K   27 downloads

Attached File  carcasa-cutie-rulment-ural.jpg   132.42K   20 downloads

Attached File  capac-cutie-fata-ural-m63.jpg   121.76K   22 downloads

Attached File  pinioane-cutie-ural-m63.jpg   128.43K   21 downloads

Attached File  pinioane-cutie-ural-m63-2.jpg   125.91K   20 downloads

Attached File  tren-fix-cutie-ural.jpg   95.39K   17 downloads

#42 luca.stere

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Posted 31 May 2014 - 02:13 PM

The other images:

Attached File  angrenaj-pornire-ural-m63.jpg   108.21K   16 downloads

Attached File  schimbator-ural-m63.jpg   108.99K   19 downloads

Attached File  harta-cutie-ural-m63.jpg   112.17K   19 downloads

Attached File  harta-cutie-ural-m63-2.jpg   129.6K   21 downloads

The speedometer gears are worn out because when the bike is not used this parts begin to rust and get blocked if the rubber protection from the cable is broken. When you move the bike you break the teeth of the gears.

Attached File  flansa-cardan-uzata.jpg   94.81K   20 downloads

#43 whiterabbit

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Posted 01 June 2014 - 06:30 PM

You have good luck! I've seen too many pictures of transmissions full of mud and rust. You were very lucky.
Very handy to have a machinist friend to make bits and pieces.
You do fine work, I'm very impressed! :cheers:
"It’s the unconquerable soul of man, not the nature of the weapon he uses, that insures victory."
Gen. George Patton

'94 Dnepr MT-16 no longer in bits n pieces!!!

#44 luca.stere

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Posted 02 June 2014 - 03:24 PM

View Postwhiterabbit, on 01 June 2014 - 06:30 PM, said:

You have good luck! I've seen too many pictures of transmissions full of mud and rust. You were very lucky.
Very handy to have a machinist friend to make bits and pieces.
You do fine work, I'm very impressed! :cheers:

Yes, I was lucky with this gearbox, but not so lucky with the rear transmision.I will put some pictures with the problems found at the rear transmision.

#45 luca.stere

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Posted 07 June 2014 - 01:25 AM

I have opened the rear drive full of high hopes (not the Pink Floyd), I hoped the things are ok inside but it wasn't. The rear drive gears are worn and broken,the rear drive hub is worn, the bearings are worn, cardan joint fork is worn where at the sealing area.

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