MS260- Can it be saved

[jameshs22]

The chainbrake on my 260 is not working anymore and doesn't bind tight on the clutch when engaged. When I stripped it down I noticed that some of the metal casing that a part of the mechanism sits in was sheared off. (Sorry a little difficult to explain). I've attached some pics. Would this be the cause of the faulty chain brake? I've changed the band and clutch and still slips. 

[spudulike]

That's bad, the only safe thing to do is to replace half the crankcase which is a relatively big job. The only positive is that you can probably pick up a cheap secondhand part.

[jameshs22]

Thought that might be the case 😔. I bought it second hand nearly 8 years ago so I suppose I've got my money's worth. Probably time for a new 550xp 😏

[Mark_Skyland]

As spud says that is a bit of a mess. The 260 is a good saw and since you're looking at £700+ plus to replace it it probably is worthy of a repair imo.

 

Just out of interest, has anyone had any luck in welding chainsaw crankcase's?

 

 

[GarethM]

Aren't they magnesium, even if it's an alloy it might turn into one giant Roman candle.

 

If anyone is brave enough, can you video it just incase!.

[gand]

I might have a second hand one at work. Let me have a look on Monday, and I'll message you. I've got my 260 in bits, but that's an ongoing project 

[Macpherson]

Hi, I'm finding it pretty difficult to see any detail in your pics could you not blow the shit off the area and repost a better view.

 

There are several possibilities when it comes to a repair of an alloy casting whether Magnesium or not, you just need to find someone able to do it, cheers.

 

Welding a Magnesium  casting....

 

https://www.youtube.com/watch?v=ElT5qmUyagU

[jameshs22]

https://www.ebay.co.uk/itm/334700794152?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=xQIxBqowSs2&sssrc=2349624&ssuid=s3H9FM4-QVW&var=&widget_ver=artemis&media=COPY

 

 

Could be worth a punt? Ive never really stripped a saw down completely and re built it. Suppose there's a first for everything though.... 

 

 

 

 

 

[ChrisNewport]

if you buy that and do it yourself with help from here you'll be looking at a total cost of about £100, Thats the crankcase, plus a set of gaskets/seals and whilst its all apart i would put in new rings and fuel and impulse pipes.

[jameshs22]

I'll get the parts ordered and report back when I've got myself in a right mess and no idea how to put it back together 😂