Author Topic: Homelite 540 piston options  (Read 1303 times)

0 Members and 0 Guests are viewing this topic.

Offline mweba

  • Piped Saw
  • *****
  • Posts: 390
  • Karma: 53
Homelite 540 piston options
« on: June 12, 2012, 03:13:46 pm »
Have a 540 I would like to get back o the road but the piston is worn way past tolerance.  A 385xp piston would be a perfect fit IE pin height but the wrist pin itself is to small.  Pin in the Homie is .5".  Any ideas on a 54mm slug to fit to this saw?

Share on Facebook Share on Twitter


Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 21945
  • Karma: 532
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Homelite 540 piston options
« Reply #1 on: June 12, 2012, 03:21:38 pm »
What is the wrist pin size of homie in mm?

Just throwing some out there. husky 288   jonsered 920 930   stihl 056  echo 900  big bore dolmar 7900  big bore stihl 460  stihl 660
REDNECK Saw Repair Getter Done

Offline mweba

  • Piped Saw
  • *****
  • Posts: 390
  • Karma: 53
Re: Homelite 540 piston options
« Reply #2 on: June 12, 2012, 03:26:47 pm »
12.5  >:(

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 21945
  • Karma: 532
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Homelite 540 piston options
« Reply #3 on: June 12, 2012, 03:29:20 pm »
scratch my list 12.5mm  :o   Use bushing?
REDNECK Saw Repair Getter Done

Offline mweba

  • Piped Saw
  • *****
  • Posts: 390
  • Karma: 53
Re: Homelite 540 piston options
« Reply #4 on: June 12, 2012, 03:32:14 pm »
Was hoping to avoid it but that may be the only option.  Plenty of machinist friends for the job but you know.....

Offline mweba

  • Piped Saw
  • *****
  • Posts: 390
  • Karma: 53
Re: Homelite 540 piston options
« Reply #5 on: September 15, 2012, 09:34:29 am »
Will be doing some testing on a press in bearing race in the near future.  The plan is to run a 385xp piston and pin bearing.  The piston dimensions are identical with the exception of the skirt being 1.5mm shorter.  The intake could afford more duration anyway.

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 21945
  • Karma: 532
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Homelite 540 piston options
« Reply #6 on: September 15, 2012, 11:29:35 am »
Will be doing some testing on a press in bearing race in the near future.  The plan is to run a 385xp piston and pin bearing.  The piston dimensions are identical with the exception of the skirt being 1.5mm shorter.  The intake could afford more duration anyway.

Bet it works fine. 

 The intake skirt on my 475 piston conversion was shorter too and I think that extra intake duration is what is making that saw run so good IMO.
REDNECK Saw Repair Getter Done

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO
Re: Homelite 540 piston options
« Reply #7 on: September 15, 2012, 12:52:57 pm »
Seams I remember the 52mm piston you stuck in that 475 didn't have windows either where the original did?
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 Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 21945
  • Karma: 532
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Homelite 540 piston options
« Reply #8 on: September 15, 2012, 02:02:54 pm »
Seams I remember the 52mm piston you stuck in that 475 didn't have windows either where the original did?

Yep but it was made for a closed port quad transfer cylinder BB372 

The 425 used solid OEM piston in a closed port cylinder too.
REDNECK Saw Repair Getter Done

 

Related Topics

  Subject / Started by Replies Last post
5 Replies
551 Views
Last post August 18, 2011, 10:01:40 am
by Cut4fun .
103 Replies
3606 Views
Last post February 24, 2014, 05:49:35 am
by 350XP
6 Replies
438 Views
Last post March 17, 2012, 11:06:21 pm
by Al Smith
11 Replies
882 Views
Last post May 18, 2012, 10:03:11 pm
by Al Smith
6 Replies
220 Views
Last post January 11, 2014, 04:10:04 pm
by procarbine2k1
117 Replies
2117 Views
Last post February 25, 2014, 01:59:38 pm
by JohnG28
064 carb options?

Started by gunnusmc03 « 1 2 » Stihl

11 Replies
762 Views
Last post February 15, 2014, 11:19:42 am
by jacob j.
6 Replies
199 Views
Last post February 24, 2014, 10:30:11 am
by srcarr52
10 Replies
577 Views
Last post September 22, 2015, 09:59:55 pm
by ch74
15 Replies
1164 Views
Last post March 10, 2016, 02:51:43 pm
by Cut4fun .