Author Topic: Jonsered 2083  (Read 8676 times)

0 Members and 0 Guests are viewing this topic.

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 22064
  • Karma: 546
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Jonsered 2083
« Reply #140 on: June 23, 2018, 07:29:38 pm »
Calling it a day.  Some pics to go with the post 2 ago.



REDNECK Saw Repair Getter Done

Online 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 4471
  • Karma: 274
  • Location: Carpenter, Wyoming
Re: Jonsered 2083
« Reply #141 on: June 23, 2018, 09:40:19 pm »
Should make for another nice saw when your done.
PP 505, 475, 445.

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 22064
  • Karma: 546
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Jonsered 2083
« Reply #142 on: June 24, 2018, 01:49:30 pm »
 Had it running after carb rebuild. Was getting ready to stick it in some wood with 28". Backfired and all she wrote. Being the complaint was broken ring by past owner. I went to pulling muffler. Yep broken ring. Last time I figured the guy had ran the crap ring that came with the afm lrb piston. This time it was a new caber ring. So to figure out if it is the cylinder ext port or the lrb piston.

REDNECK Saw Repair Getter Done

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 22064
  • Karma: 546
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Jonsered 2083
« Reply #143 on: June 24, 2018, 03:40:12 pm »
Tore back down for look see. Comparing my 52mm 50mm cylinders to this 54mm. I think someone opened some and didnt get enough bevel. I had checked them before putting back together but guess it wasnt enough after comparing the cylinders. So time for some beveling.
Had another thought while down. Hmmmm Jred didnt make a version of the PP445 P710 which is my favorite of the series. Have 2 with bad cranks and 1 runner of those.   :P
REDNECK Saw Repair Getter Done

Offline Cut4fun

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 4106
  • Karma: 166
  • OHIO REDNECK
Re: Jonsered 2083
« Reply #144 on: June 25, 2018, 12:02:33 pm »
Ext & int isnt pretty but think I was able to save what had been done by someone in past which was hanging the ring on ext side breaking them.   Running and taking throttle good so far.

Hope to tune and put in some wood when I get back later today.



REDNECK Saw Repair

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 22064
  • Karma: 546
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Jonsered 2083
« Reply #145 on: June 25, 2018, 07:12:45 pm »
Well dog turd.  Same thing, broke another ring running for less then a min. Never even made a cut.  Looking how ring is in port. They just went too wide.   So 77cc or 71cc she will be.
REDNECK Saw Repair Getter Done

Online 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 4471
  • Karma: 274
  • Location: Carpenter, Wyoming
Re: Jonsered 2083
« Reply #146 on: June 25, 2018, 11:50:32 pm »
You can try and bevel the port even more.    That is one reason I like using a ball hone.   It takes any sharp edges off of the ports.

PP 505, 475, 445.

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 22064
  • Karma: 546
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Jonsered 2083
« Reply #147 on: June 26, 2018, 09:06:20 am »
Dont think it is the bevel now after doing that yesterday.  Thinking someone went to wide and that has something to do with it. Then again I could be wrong.
Was going to try and get time to measure and or compare to a stock port on piston today. 

The way the ring sticks out the ext port after breaking seems weird and I am WAGing for ideas to why. I thought it was beveling was not enough by whoever did it. Fixed that part I thought, so WAGing to other things as to why. Ring breaks right in the middle and right in the center of the ext port area.

Ball hone was used on 1st clean up and then again after adding beveling 2nd time.

Funny listening to it while it is running for the tell tell sound of when the ring cracks.  Pretty wild sound from a saw.
REDNECK Saw Repair Getter Done
Like Like x 1 View List

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 22064
  • Karma: 546
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Jonsered 2083
« Reply #148 on: June 26, 2018, 02:11:42 pm »
Compared the port shape and width to a stock 475 cylinder.  IMO rules at my to wide WAG. Has to be bevel catching it. Worked over the little more as I guess lower could be suspect and hit the top some more.  But IMO there is more now then the stock cylinder has.

Think I may have just used my last 2 54 1.5 rings so need to order some more. 
REDNECK Saw Repair Getter Done

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 22064
  • Karma: 546
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Jonsered 2083
« Reply #149 on: June 26, 2018, 04:11:00 pm »
Hindsight now. But should have read the 1st ring the saw came in broke with. Then the 1st one I broke.   I just looked at the 1st and 2nd caber I broke and could see where it was hitting right beside where it crracked both times. First one of mine was hitting top and bottom on ring. 2nd one was just the bottom.  So tried to fix the crap someone did to it.
I found a used good 54 to put in it from a past build of mine.  Right now running and cutting.

Anyone have a new 54 1.5 to measure the radial wall thickness of? I checked the new broke caber 2.24mm and used one I put in 2.16mm.  Just was checking to see how much wear was on the used one.

In a bit to see if that green coil is going to be rev limited like the 475 505 was or unlimited like the ones in 445.  Right now around 11K
REDNECK Saw Repair Getter Done

 

Related Topics

  Subject / Started by Replies Last post
5 Replies
335 Views
Last post August 24, 2014, 10:40:36 am
by Cut4fun
35 Replies
1391 Views
Last post January 12, 2016, 11:32:53 am
by Tractorsaw1
38 Replies
911 Views
Last post June 21, 2016, 01:32:54 pm
by Cut4fun .
4 Replies
298 Views
Last post October 19, 2018, 03:18:46 pm
by Cut4fun .
1 Replies
490 Views
Last post January 14, 2017, 02:17:56 pm
by Cut4fun .
1 Replies
193 Views
Last post May 24, 2018, 09:28:10 pm
by Cut4fun .
6 Replies
197 Views
Last post July 22, 2017, 12:54:36 pm
by 3000 FPS
19 Replies
501 Views
Last post August 01, 2020, 09:19:51 am
by Cut4fun .
15 Replies
341 Views
Last post November 16, 2018, 02:56:14 pm
by Cut4fun .
3 Replies
122 Views
Last post October 23, 2018, 11:16:06 am
by Cut4fun .