Jump to content


Dnepr 650 - fast project

dnepr dnepr 650 k750 mt9

  • Please log in to reply
150 replies to this topic

#1 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 05 May 2017 - 06:13 AM

I have begun to rebuild a Dnepr 650 (I think MT11) and convert to a Dnepr MT9 with that incredible 6V russian bike design.

Posted Image

Posted Image

And it will became something like that:

Posted Image

Posted Image

#2 jim.mt10

jim.mt10

    Active Member

  • Members
  • PipPip
  • 45 posts
  • Joined:23-October 11
  • Gender:Male
  • Location:Switzerland

Posted 05 May 2017 - 12:30 PM

Hi, Luca
Please keep the posts coming. Your work is great and the information is extremely useful.
Thanks for taking the time to share your knowledge and experience.
  Ride safe
   Jim

#3 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 05 May 2017 - 02:43 PM

View Postjim.mt10, on 05 May 2017 - 12:30 PM, said:

Hi, Luca
Please keep the posts coming. Your work is great and the information is extremely useful.
Thanks for taking the time to share your knowledge and experience.
  Ride safe
   Jim

Thank you for your apreciations Jim!

The posts will come (engine, gearbox and rear drive are ready) but this is not a rebuild, like I said is a fast project and that is because this bike has only 4700 km. All the parts will be disassembled verified and reassembled, it will not be so much info and tips but I will begin soon to rebuild a Dnepr engine and that will be a good topic to collect some infos: http://www.russianir...howtopic=15701.

#4 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 06 May 2017 - 08:20 AM

In just a couple hours:

Posted Image

Posted Image

Posted Image

Posted Image

Posted Image

#5 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 06 May 2017 - 08:25 AM

While I was disassembling the bike I have observed that every bolt was original and never opened. I took a look at speedometer and there it was: 4700km!!!!

Posted Image

First time I did not give any importance to the speedometer because it was opened and painted by the previous owner but the bike is perfect, good engine, good transmission, good suspension. I have found out that the bike had some electrical problems with the ignition (dead coil and capacitor) and that was the reason for these real kilometers.

#6 racepres

racepres

    Russian Bike Nut

  • Members
  • PipPipPip
  • 1,342 posts
  • Joined:08-November 11
  • Gender:Male
  • Location:Middle of the Mitten

Posted 06 May 2017 - 01:32 PM

I am Happy [or maybe embarrassed] to report that my MT-11 still has a touch less than 3000 KM on it
Posted Image

Gonna stay just like it is!!!
The Ural has about 8K, ...I don't get around like I used to!!!!

#7 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 06 May 2017 - 01:34 PM

View Postracepres, on 06 May 2017 - 01:32 PM, said:

I am Happy [or maybe embarrassed] to report that my MT-11 still has a touch less than 3000 KM on it
Posted Image

Gonna stay just like it is!!!
The Ural has about 8K, ...I don't get around like I used to!!!!

I think you are happy!

#8 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 07 May 2017 - 02:57 AM

When i have opened this engine I have found the parts in a very good shape but with some minor problems from the factory. The camshaft gear has touched the front aluminium housing and some aluminum filings has arrived in the oil and also got stucked on the shell bearings:

Posted Image

Fortunately the crankshaft is ok, there are no problems. So I just have to change the shell bearings and it will be exactly like new.

Another problem was some loosen bolts to the camshaft housing but they were in their place and the rear seal was mounted in a maner to loose alot of oil, it has an inclination. That is why the engine is so dirty on the lower part.

#9 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 07 May 2017 - 02:59 AM

That is the engine housing:

Posted Image

Posted Image

Posted Image

#10 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 07 May 2017 - 03:02 AM

After the cleaning:

Posted Image

Posted Image


Posted Image

Posted Image

Posted Image

#11 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 07 May 2017 - 03:07 AM

The crankshaft, opened and cleaned very well outside and inside:

Posted Image

New standard shell bearings:

Posted Image

And the crank is ready to be assembled, what you see in red is a kind of factory paint:

Posted Image

This crank was not very dirty inside but this one from another engine is: https://www.youtube....h?v=l3NLcFvp_pM

So, always clean this engines if you don't know the maintenance history of the engine, even if it has low mileage.

#12 racepres

racepres

    Russian Bike Nut

  • Members
  • PipPipPip
  • 1,342 posts
  • Joined:08-November 11
  • Gender:Male
  • Location:Middle of the Mitten

Posted 07 May 2017 - 08:47 AM

View Postluca.stere, on 07 May 2017 - 03:07 AM, said:

So, always clean this engines if you don't know the maintenance history of the engine, even if it has low mileage.

Probably a Good Idea...But

View Postluca.stere, on 06 May 2017 - 01:34 PM, said:

I think you are happy!
You are correct!!!

Long as the thing works as well as it does...I don't think I have the ability to make it "Better"
Keep showing what you are up to..One Day we are all gonna have to go where you are at!!!
These kinds of Posts are a Particularly Valuable Resource...
Thanks for the Time and Pictures...Important Details...
Your Sharing this is Appreciated....

#13 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 07 May 2017 - 10:21 AM

So, I have buyed new bearings for the crankshaft, the old ones were very good but the problem is there was two NJ209 bearings (probably by mistake?!) and the crank was playing to front and back 1-2mm. Usualy they put 6209 bearing with balls and NJ209 bearing with roller for the back. So the 6209 bearing is keeping the crank fixed in the housing and does not alow to play to front and back.

Posted Image

The NJ209 roller bearing for the rear:

Posted Image


The 6209 C3 bearing for the front of the crank:

Posted Image

#14 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 07 May 2017 - 10:26 AM

The oil pump:

Posted Image

Posted Image

Assembling the front crankshaft housing:

Posted Image

And the crank gear after assembling the front housing:

Posted Image

#15 luca.stere

luca.stere

    Russian Bike Nut

  • Members
  • PipPipPip
  • 626 posts
  • Joined:27-February 14
  • Gender:Male
  • Location:Romania

Posted 07 May 2017 - 10:38 AM

The camshaft and the bearings are like new and that is good because I don't have to extract the gear for cahnging bearings:

Posted Image

Posted Image

And the camshaft and oil pump gear are mounted, for the camshaft bolts housing I have used Loctite to secure them.

Posted Image





Also tagged with one or more of these keywords: dnepr, dnepr 650, k750, mt9

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users