Author Topic: Jonsered 2083  (Read 8676 times)

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Offline Cut4fun .

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Re: Jonsered 2083
« Reply #150 on: June 26, 2018, 07:48:10 pm »
2nd testing with 28" buried. Took it up to 12K. So must not be a rev limited green coil.  Which is cool. But saw failed while cutting 2nd block.
Sounded crunchy this time around, unlike the broken ring deal.  Will try to tear down tomorrow for a peek. 
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Offline deezlfan

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Re: Jonsered 2083
« Reply #151 on: June 27, 2018, 12:17:20 pm »
This red one seems to be fighting you........maybe you should put some yeller parts on it? 
We just drag them down..... Until they're just like us !!!  BNL
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Offline Cut4fun .

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Re: Jonsered 2083
« Reply #152 on: June 27, 2018, 01:34:53 pm »
This red one seems to be fighting you........maybe you should put some yeller parts on it? 



If the rod etc survived the grenade inside. She will be getting a yellow 475 or 445 topend next.   
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Offline Cut4fun .

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Re: Jonsered 2083
« Reply #153 on: June 27, 2018, 03:06:35 pm »
Strike 3 for this 54mm p+c. Stick a fork in it.
Even got the pieces out of the muffler with baffle still in it.
Just glad it didnt bend the rod.
Was tracing what the shape of the ext was on it on a 066 piston to compare to a stock 475. Yes both off centered I just stuck them in to trace onto them.

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Offline Cut4fun .

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Re: Jonsered 2083
« Reply #154 on: June 27, 2018, 03:07:51 pm »
I know what I think, see if anyone else see's it.
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Re: Jonsered 2083
« Reply #155 on: June 28, 2018, 12:12:12 pm »
Wow that is a big port and no oval at the edges to allow the ring to come back in gradually.     I guess that cylinder is toast. 
PP 505, 475, 445.
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Re: Jonsered 2083
« Reply #156 on: June 28, 2018, 04:18:26 pm »
Thats what I was seeing and they had made it to flat at top too. To undo that I would have had to raise it even more to try and reshape it back. Already it had lost torque in the cut IMO so tried without that.

I had a race 166 that was way more before and it did fine. But this cylinder was just a mess from get go when received.

Chit need to find the bigger pic


Aslo folks trying to run a 54mm top on the 36mm stroke in the 5ci race classes is over the size limit allowed. If you get checked it is a cheater saw.  Have to run the 52mm cylinders or ;)

54mm x 36mm 82.447949622cc   5.031283065765201ci

5ci cc allowed.  81.93532cc



 
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Re: Jonsered 2083
« Reply #157 on: July 12, 2018, 01:49:11 pm »
Was cleaning up the 2077 cylinder and getting ready to put a NOS piston kit in.   

Doing a much closer inspection.   :o :P

Finally getting back into one of my own saws I had bought thats been a problem child since arrived.
Keep breaking rings 2 times, then finally 3rd time fubarred the whole topend. No matter what I tried cleaning up someones past porting.
Think I just found part of the problem looking it over much closer this time around.
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Re: Jonsered 2083
« Reply #158 on: July 12, 2018, 06:43:24 pm »
Crankcase split and crank pulled.  :D

Think this one has a real special nickname coming.


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Re: Jonsered 2083
« Reply #159 on: July 12, 2018, 11:26:48 pm »
Was that a crack in the counter balance.
PP 505, 475, 445.

 

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