MS 260 needle bearing

[Duncansimpson]

I've got a 18 month old 260 which gets through needle bearings like no tomorrow. Close inspection shows very worn shaft. Oil pump now gone too. Apart from this runs like a dream. Hate to chuck out good runner but wondering if this was an economic repair

[Pinkfoot]

I run mine on a 16" low profile chain and it wore the sprocket out but right on the outer edge , so the shaft was fine. It doesn't destroy bearings though .

If your saw is beyond repair , I would like to have first offer please.

Spud fixed a couple a while ago , so you may be in luck.

[spudulike]

Do you mean the MS261???? It is notorious for knocking out the sprocket bearing that in time takes out the oil worm drive arm, the oil pump and the sprocket.

 

The ONE thing that worries me with yours is the crank having worn. I have done a few of these and the cranks have fortunately been spared on all of them being much harder.

 

If the crank is gone, then it will be a damn costly repair and not feasible.

 

If the crank is OK then it is repairable - have you measured the stub end of the crank in various places to verify it has gone or is it damn obvious it has worn down in diameter???

 

The other ones I have done MS261s have had a new steel cage needle bearing when I have managed to obtain them and new oiler/sprocket parts!

[Pinkfoot]

Sorry , I meant 261 too. I am 51 now , so that is my excuse.

[spudulike]

Sorry , I meant 261 too. I am 51 now , so that is my excuse.

 

I am only a year behind you, God help us:lol:

[Pinkfoot]

Combined age of 101. You must have the brains , I sure as Hell have not !

[MATTMOSS]

We have had 6 x ms261 rebuilt with new crank shafts as warranty repairs, free of charge.

Hate the things

[spudulike]

Combined age of 101. You must have the brains , I sure as Hell have not !

 

Some have said, others thnk I am bonkers but just don't understand:lol:

[Pinkfoot]

We have had 6 x ms261 rebuilt with new crank shafts as warranty repairs, free of charge.

Hate the things

 

I can see why you hate them.

Which saw would you get in place of them?

[Duncansimpson]

Yes, I meant 261. I really like them and it's the first one the lads pick up too. Sounds like a well known common problem and yes the crank is truly worn and oil pump gone exactly as spud says.