Author Topic: Stihl Piston/Cylinder Kits  (Read 3690 times)

0 Members and 20 Guests are viewing this topic.

Offline Cut4fun

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 4666
  • Karma: 216
  • OHIO REDNECK

  • Total Badges: 44
    Badges: (View All)
    Tenth year Anniversary Nineth year Anniversary Eighth year Anniversary Level 7 Seventh year Anniversary Apple User
Re: Stihl Piston/Cylinder Kits
« Reply #30 on: January 04, 2013, 01:53:28 pm »
That cylinder on your 660mag has one of those D shaped combustion chambers I was told were the better ones to look for.  I have no clue why but builders like them when porting.

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO

  • Total Badges: 39
    Badges: (View All)
    Seventh year Anniversary Sixth year Anniversary Fifth year Anniversary Fourth year Anniversary 5000 Posts Third year Anniversary
Re: Stihl Piston/Cylinder Kits
« Reply #31 on: January 04, 2013, 03:44:23 pm »
Yes, this  026 PRO will really turn up the rpm and has a 3/8" X .050" X 16" Stihl bar X 7 tooth rim sprocket. It is ported and has a Walbro WT-194 carb with the intellicarb device disconnected. It also came with a adjustable oiler that only works when the chain is moving whereas some regular (None Pro) 026's didn't have an adjustable oiler and their oil pump ran the whole time the engine was running.

It is a great limbing chainsaw and companion to my 660 MAG. I have the 026 backed up with a four port 025.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline davbell22602

  • Piped Saw
  • *****
  • Posts: 391
  • Karma: 3
  • Location: Winchester, Va

  • Total Badges: 24
    Badges: (View All)
    Sixth year Anniversary Fifth year Anniversary Level 5 Fourth year Anniversary Third year Anniversary Second year Anniversary
Re: Stihl Piston/Cylinder Kits
« Reply #32 on: February 06, 2013, 09:26:43 am »
How much play can the piston needle bearing have?

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO

  • Total Badges: 39
    Badges: (View All)
    Seventh year Anniversary Sixth year Anniversary Fifth year Anniversary Fourth year Anniversary 5000 Posts Third year Anniversary
Re: Stihl Piston/Cylinder Kits
« Reply #33 on: February 06, 2013, 09:31:22 am »
If you feel any UP-DOWN play, it is not acceptable.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline davbell22602

  • Piped Saw
  • *****
  • Posts: 391
  • Karma: 3
  • Location: Winchester, Va

  • Total Badges: 24
    Badges: (View All)
    Sixth year Anniversary Fifth year Anniversary Level 5 Fourth year Anniversary Third year Anniversary Second year Anniversary
Re: Stihl Piston/Cylinder Kits
« Reply #34 on: February 06, 2013, 09:39:24 am »
I have no up and down play but have front to back play when wiggling the pin. Its little though.

Offline brokenbudget

  • Nitro Hotsaw
  • *******
  • Posts: 900
  • Karma: 67
  • Location: brockville ontario canada

  • Total Badges: 32
    Badges: (View All)
    Seventh year Anniversary Level 6 Sixth year Anniversary Fifth year Anniversary Fourth year Anniversary Linux User
Re: Stihl Piston/Cylinder Kits
« Reply #35 on: February 06, 2013, 11:50:02 am »
there should be ZERO (radial) play on either the big end or little end of the crank. if there is, you need to fix that before it decides to turn the crank case into a gravel pit.
when I grow up, i wanna be an adult.

Offline davbell22602

  • Piped Saw
  • *****
  • Posts: 391
  • Karma: 3
  • Location: Winchester, Va

  • Total Badges: 24
    Badges: (View All)
    Sixth year Anniversary Fifth year Anniversary Level 5 Fourth year Anniversary Third year Anniversary Second year Anniversary
Re: Stihl Piston/Cylinder Kits
« Reply #36 on: February 06, 2013, 12:25:42 pm »
So front and back play isnt acceptable either?

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO

  • Total Badges: 39
    Badges: (View All)
    Seventh year Anniversary Sixth year Anniversary Fifth year Anniversary Fourth year Anniversary 5000 Posts Third year Anniversary
Re: Stihl Piston/Cylinder Kits
« Reply #37 on: February 06, 2013, 12:29:49 pm »
that is correct.
The only play might be side to side.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline davbell22602

  • Piped Saw
  • *****
  • Posts: 391
  • Karma: 3
  • Location: Winchester, Va

  • Total Badges: 24
    Badges: (View All)
    Sixth year Anniversary Fifth year Anniversary Level 5 Fourth year Anniversary Third year Anniversary Second year Anniversary
Re: Stihl Piston/Cylinder Kits
« Reply #38 on: February 06, 2013, 01:02:48 pm »
Well the play have is front to back of the saw when the piston pin is in the bearing on the rod. But its very little like not even a 1/16th at most.

Offline brokenbudget

  • Nitro Hotsaw
  • *******
  • Posts: 900
  • Karma: 67
  • Location: brockville ontario canada

  • Total Badges: 32
    Badges: (View All)
    Seventh year Anniversary Level 6 Sixth year Anniversary Fifth year Anniversary Fourth year Anniversary Linux User
Re: Stihl Piston/Cylinder Kits
« Reply #39 on: February 06, 2013, 02:18:44 pm »
Well the play have is front to back of the saw when the piston pin is in the bearing on the rod. But its very little like not even a 1/16th at most.

there should be ZERO (radial) play on either the big end or little end of the crank. if there is, you need to fix that before it decides to turn the crank case into a gravel pit.
when I grow up, i wanna be an adult.

 

Related Topics

  Subject / Started by Replies Last post
2 Replies
629 Views
Last post August 04, 2011, 08:04:28 pm
by Old Iron Logging
28 Replies
2530 Views
Last post February 16, 2012, 06:58:36 am
by brokenbudget
0 Replies
473 Views
Last post May 24, 2012, 08:20:22 pm
by MP5N
19 Replies
1408 Views
Last post September 09, 2013, 09:51:10 pm
by doreadeal
1 Replies
383 Views
Last post March 11, 2014, 04:13:31 pm
by Cut4fun .
0 Replies
444 Views
Last post March 04, 2015, 08:35:50 am
by jmester
6 Replies
562 Views
Last post December 01, 2015, 07:05:32 pm
by Fish
5 Replies
436 Views
Last post May 09, 2017, 09:44:40 am
by Nathaniel Vansickle
2 Replies
468 Views
Last post August 21, 2018, 01:22:59 pm
by trevor-t
4 Replies
467 Views
Last post February 29, 2020, 07:34:27 am
by Cut4fun .