Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Husqvarna => Topic started by: srcarr52 on December 26, 2014, 04:40:10 pm

Title: AM wrist pin bearing failure.
Post by: srcarr52 on December 26, 2014, 04:40:10 pm

Has anyone had troubles with AM wrist pin bearings like this?  I found the damage before it trashed the whole cylinder of this ported 394.

(http://i1133.photobucket.com/albums/m599/srcarr52/Bench%20Pics/IMG_3746_zps36859e52.jpg)

(http://i1133.photobucket.com/albums/m599/srcarr52/Bench%20Pics/IMG_3748_zps1ac58ab9.jpg)

Title: Re: AM wrist pin bearing failure.
Post by: aclarke on December 26, 2014, 07:39:17 pm

Lame!  Did the needles fail or the cage?

Title: Re: AM wrist pin bearing failure.
Post by: srcarr52 on December 26, 2014, 08:08:33 pm

Quote from: aclarke on December 26, 2014, 07:39:17 pm

Lame!  Did the needles fail or the cage?

Cage failed and a little bit escaped causing all the cylinder/piston damage.

Title: Re: AM wrist pin bearing failure.
Post by: 660magnum on December 26, 2014, 09:16:57 pm

Quote: Bluegill . . .
"I think after market parts are a crap shoot..."

The problem is the lack of quality control.

Also you buy the same part from the same seller but his sources may vary.

The aftermarket parts are never the same if you order them again.

Title: Re: AM wrist pin bearing failure.
Post by: weimedog on December 26, 2014, 11:15:20 pm

Looks like it hurt... (that poor cylinder) with the cost of those bearings really low, why even entertain AM when OEM is available....