Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Stihl => Topic started by: jmester on September 17, 2015, 08:29:05 pm

Title: Ms 660 clutch side bearing
Post by: jmester on September 17, 2015, 08:29:05 pm
Got checking the bottom end. And found some play on the pto side. Thought it was just dust going through it as the filter was wasted. But that was not it. When splitting the case the pto side case just fell off after the screws and pins were out. Come to find out the crank was spinning in the inner race of the bearing. And that is where the play was coming from. What do you think would have caused that? A mis made bearing?
Title: Re: Ms 660 clutch side bearing
Post by: mdavlee . on September 17, 2015, 09:10:25 pm
Seems a lot of them had that problem. Don't really know what causes it. I had 1of 3 a whole back that did that.
Title: Re: Ms 660 clutch side bearing
Post by: jmester on September 18, 2015, 06:06:53 am
Where they saws with the new style bar studs?
Title: Re: Ms 660 clutch side bearing
Post by: mdavlee . on September 18, 2015, 06:37:49 am
Usually the older metal flywheel saws had more of it.
Title: Re: Ms 660 clutch side bearing
Post by: jmester on September 18, 2015, 04:05:36 pm
Seems odd. Just glad it was caught before it messed up the crank.
Title: Re: Ms 660 clutch side bearing
Post by: mdavlee . on September 18, 2015, 09:24:44 pm
Yeah they can kill the cranks from it.