« previous next »
Pages: [1]   Go Down

Author Topic: what type of machines are needed to balance piston rods and cranks on chainsaw  (Read 1840 times)

0 Members and 1 Guest are viewing this topic.

Offline

  • 3 cube
  • *
  • Posts: 5
  • Karma: 0

    • Total Badges: 6
    Badges: (View All)
    Level 2 Second year Anniversary One year Anniversary Topic Starter Level 1 First Post
what type of machines are needed to balance piston rods and cranks on chainsaw
« on: April 01, 2012, 03:59:25 am »
i would like to know what type of machines and ways there are to balance cranks and piston and rod assemblies
Logged

Share on Bluesky Share on Facebook

Offline

  • 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: what type of machines are needed to balance piston rods and cranks on chainsaw
« Reply #1 on: April 01, 2012, 08:44:30 am »
The general practice is to make the counterweights be the total of the weight of the crankshaft end of the rod and half the weight of the piston, ring(s), circlip(s), wristpin, and small end of the connecting rod.

On a single cylinder engine, balance is always a compromise so dynamic balancing is sometimes used to reduce the vibration.
Logged
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

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 2779
  • Karma: 181

    • Total Badges: 34
    Badges: (View All)
    Tenth year Anniversary Nineth year Anniversary Eighth year Anniversary Level 6 Seventh year Anniversary Sixth year Anniversary
Re: what type of machines are needed to balance piston rods and cranks on chainsaw
« Reply #2 on: April 08, 2012, 09:52:53 am »
On an auto type engine it's a little complicated .The rods are balanced as per weight in general plus dynamically big end to small end .Pistons have weight "bosses " which are milled to get the exact weight for each assembley .In modern production methods it's all done on CNC machinery . I would have no idea how a person using standard manual machine tools would do it .
Logged
Pages: [1]   Go Up
« previous next »
 

Related Topics

  Subject / Started by Replies Last post
0 Replies
944 Views 		Last post March 02, 2014, 12:20:32 pm
by Cut4fun .
23 Replies
3486 Views 		Last post April 17, 2014, 04:37:58 am
by KilliansRedLeo
1 Replies
972 Views 		Last post November 08, 2014, 09:17:54 am
by aclarke
3 Replies
1814 Views 		Last post September 13, 2015, 12:38:21 pm
by Cut4fun .
17 Replies
2618 Views 		Last post October 30, 2015, 08:26:24 am
by 660magnum
4 Replies
1405 Views 		Last post March 10, 2017, 10:15:33 am
by Nathaniel Vansickle
1 Replies
1472 Views 		Last post January 01, 2020, 04:41:46 pm
by Old Iron Logging
1 Replies
1781 Views 		Last post June 26, 2019, 05:35:35 am
by Al Smith
2 Replies
2429 Views 		Last post May 22, 2025, 01:38:54 pm
by Le Maisonniau
0 Replies
30 Views 		Last post August 17, 2026, 09:29:54 am
by Cut4fun .