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Dr_C

Supermono and good vibrations

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Hello folks!

It was quite a while since an update, but still I can see some visitors coming from this site, to my Youtube channel: https://www.youtube.com/user/Massegossen

Some of you might know of my project, which involves complete frame build and a billet cylinder head with an EFI from Megasquirt. Somewhere in the middle there is still a little something with Husaberg stamps on. ;)

The relatively high power (88 RWHP out of 680cc) consumed main bearings after max 5-6 hours causing havoc in the crankcase. So, I put in double row spherical roller bearings to cope with the tumbling effect of the crank shaft (appr. 0,5 deg). You can see the preps in this video: 

 

Then I had some problems with leaking of coolant, wich was difficult to find. I had to trouble shoot that in a very profound manner:

 

Then there were some other issues with collar bones  and such, but the tricky challenge was vibrations that came when I had to remove the counter balancer. The rear shock broke 4 times and all kinds of cables and brackets broke from the vibrations.  I tested 3 different balance ratios, but none were any good. So now I'm adding a counter balance shaft again, in another position. All CAD files are now sent for machining, but here is a short video presentation of the new counter balancer design:

 

 

I hope you enjoy my videos and I wish you all a Happy Easter!

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Hey Mats, I’m always excited to watch how you challenge your odyssey with the engine, your Channel isn’t forgotten ;) . I guess a counter balancer is a must at a certain degree; for example those Yamaha 660 engines in all their configs also run better with a balancer suited to the different weight ratios regarding their crank mass than throwing it out.

When hearing this backgroundmusic I‘m always thinking of some tinkering minions/oompa loompas....

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Things are starting to materialize! I got the gears, cb shaft and had machining done to the crank case yesterday.683575ac57d081fd76df298f22c11679.jpg17a6e145389c8e0a3637af627aeb848e.jpg

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Uhhh, eye candy!

Do you use available gears or are they custom build?

Funny to see the opening milled in the case. Usually that’s something what can be seen with a conrod sticking out or so :D

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Everything is custom built.

The cases for the cb are coming along.

Uhhh, eye candy!

Do you use available gears or are they custom build?

Funny to see the opening milled in the case. Usually that’s something what can be seen with a conrod sticking out or so [emoji3]
b98e3183313df8b973ede3e198bb4ffe.jpg7813be92c7d577807d8dd14c1e249687.jpg

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Billet porn, nice.

Are you able to use different CB weights if your first shot isn‘t satisfactory?
Heavier is difficult to fit. There is only space enough for an 11mm thick cb between the cheeks. The simulations show to go with more "imbalance" on the cb and less on the crank. The front engine mount will be in rubber, so it will absorb the smallest amplitudes. [emoji108]

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Haha! You spotted it! A new gear is being manufactured as we speak. Some splinters came off in the machining process.

:9::9::9:
 
Unbenannt.png.4a637fd64b314cfe08cc72fa0beb09f6.png
 
:angel:


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Ah, okay. If it’s necessary some tungsten could be inserted intow the CB, or is that no option?

Still excited to see how much the vibs go down with your upgrade.

Btw, what does your engine weight?

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vor 13 Minuten schrieb dr.-hasenbein:

:9::9::9:

 

Unbenannt.png.4a637fd64b314cfe08cc72fa0beb09f6.png

 

:angel:

 

Here´s an actual picture of dr.-bastelbein looking at photos inside the Powerwheelie forum:

RIAN_archive_439194_%22Zapadnaya%22_fron

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It is necessary to mount 90WCu10 inserts to obtain the calculated imbalance.

I do not know the weight after this latest upgrade. I'll have to get back to you on that matter.

According to the simulations, the amplitude will be reduced by appr. a factor of 6.

Ah, okay. If it’s necessary some tungsten could be inserted intow the CB, or is that no option?

Still excited to see how much the vibs go down with your upgrade.

Btw, what does your engine weight?


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It is a bakelit (?) reinforced with a fabric weave. It's a common mtrl for toothed gears. The combination with a steel gear can be run dry, without having to soak the new gear compartment in oil.

Quality Assurance Department  :new_silly:
 
Material of this Gear Sprocket is what ? 


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Hmmm, plastic! If it’s good enough for AK47/74 magazines and hand grips, it will work in an engine, too :P But still interesting to see that such material combinations work out.

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Doesn't quite look like they used to...3ef0e4b715819457b2252129fb653067.jpg

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Wow !!! Nice to watch. And now it answers some questions to me (Why oem balancer dosnt work...) 

 

keep going forward B|

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Saturday morning and a crazy swedish engine mod video - awesome!


I‘m quite curious to see how well the billet piece and the cast cases are welded together; what kind of aluminium did you use for it?

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Saturday morning and a crazy swedish engine mod video - awesome!


I‘m quite curious to see how well the billet piece and the cast cases are welded together; what kind of aluminium did you use for it?


I think it was 6082. Only struggle with welding is cleanliness.

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I thought that it might be something like that, still good to know that a Husaberg case is nice to weld.

 

A friend fixed Bens small mishap on the large clutch cover of his TM and he said it was quite nasty to fix.

 

 

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