Author Topic: 028S - worn piston  (Read 351 times)

0 Members and 0 Guests are viewing this topic.

Offline qigley

  • 3 cube
  • *
  • Posts: 9
  • Karma: 0
Re: 028S - worn piston
« Reply #10 on: November 14, 2016, 07:38:33 pm »
This saw in pic isnt a 028 super.  Like jmester said. Looks like 029 or 029 super
Yep, you guys are right, that wasnt my saw in the pic I put up on Pg 1.  I downloaded that pic off the net some time ago, and forgot, and now wrongly assumed  that it was a pic I took of my problem.

My saw is definitely a 28S, and of course looks exactly like it does in the link I was given.I tried to take a pic of the piston, but my camera cant focus properly.  What I see thru the exhaust port is some hard scuffing just below the rings for 1/5 of an inch or so, then the remainder of the skirt is clean and shiny below that and not scuffed at all.

Anyways I was wondering more than the fault itself, whether there were other diagnostic checks I should do, such as crank seals, etc?  Since the 28 is not a clamshell motor, it is  a simple service  to just pull off the cylinder. So Im thinking of just doing that, replace the cyl + piston if needs be, and re use and go from there and see whether its useable as is.  The carb has been rebuilt, so if the cyl/piston rebuild doesnt make it run good, then all I have left to do is get in to the crank area.

False strategy or not?


Related Topics

  Subject / Started by Replies Last post
11 Replies
Last post March 07, 2011, 02:39:37 pm
by Old Iron Logging
20 Replies
Last post November 09, 2013, 04:26:05 pm
by jmester
6 Replies
Last post October 16, 2013, 04:50:13 pm
by Al Smith
0 Replies
Last post October 17, 2013, 07:57:18 pm
by Cut4fun .
29 Replies
Last post November 26, 2013, 08:53:22 am
by KilliansRedLeo
4 Replies
Last post December 04, 2013, 12:42:41 pm
by 3000 FPS
8 Replies
Last post January 23, 2015, 05:25:39 pm
by Cut4fun .
9 Replies
Last post March 04, 2015, 03:15:47 pm
by GCC
Top of piston has....

Started by SDB777 « 1 2 3 » Stihl

21 Replies
Last post September 25, 2015, 02:29:31 pm
by Cut4fun .
4 Replies
Last post December 15, 2015, 10:18:08 am
by dannyupsolate