MS 880 Broken Crank Answers

[glock37]

I cant get too screws


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[glock37]

With clutch on


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[WheresWally]

You cant get to the screws to split the case with the clutch on. You'll have to drop a wooden wedge in the front of the case and rest the lobe on it then give it heaps, the 88's love locking the clutches on super tight, i reckon i have broken half a dozen spiders over the years although a little heat never goes astray. Best of luck finding a crank for it anyway, they are as rare as shark s h i t in the desert, if you have someone over there that can press the pins i have one here with a failed big end you can have, also, if you do end up dicking the case (which i highly doubt) i have numerous cases here...

 

[old-cat]

Take it apart

 

[WheresWally]

Take it apart

Makes no difference, there is a huge washer behind them.

 

[old-cat]

Makes no difference, there is a huge washer behind them.

Tear it up

 

[glock37]

Thanks wally its a customers saw dealer was going to order crank and other parts if the cust wants to fix it i may buy it if the price is right im doing it for them they dont have time im thinkin grind 2 flats on crank and put in vise then use a 6 point wrench and see if i can get it off


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[WheresWally]

Tear it up

Haha i love the way you think, may as well die grind that oil pump out of there too... Although they do work their way tight, they will always come off, the op just needs to put his big boy pants on...

 

[WheresWally]

Thanks wally its a customers saw dealer was going to order crank and other parts if the cust wants to fix it i may buy it if the price is right im doing it for them they dont have time im thinkin grind 2 flats on crank and put in vise then use a 6 point wrench and see if i can get it off


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Just out of interest (and don't take this the wrong way) you are trying to undo it right (clockwise) aren't you...

 

[old-cat]

I have NO respect for engines. When they break or otherwise don't cooperate they get abused!!!!!!!!!!!!

 

[glock37]

Yep righty loosey lefty tighty


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[WheresWally]

I have NO respect for engines. When they break or otherwise don't cooperate they get abused!!!!!!!!!!!!

I am much the same these days, even if i cause the problem, very low tolerance for troublesome two strokes...

 

[WheresWally]

Yep righty loosey lefty tighty


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haha that's the one, I hate asking, but sometimes it does pay to check...

 

[old-cat]

It seems like you could weld that crank at the break then impact it apart

 

[glock37]

Yeah its fun to figure out to fix them but there aint many solutions on this one

Would heat on the clutch spider help


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[old-cat]

Heat should help, YES. Take all the weight out of the clutch also

 

[glock37]

Ok


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[Big_Wood]

I've never had a clutch I couldn't get off. This saw having an inboard clutch won't have a nut to crank on like some of the bigger outboard clutch saws. If you have a large socket you don't care about take a grinder to it and make a clutch removal tool. That way you can stand on the saw and take the clutch off with that tool and a breaker bar. Comes off like nothing. Then slot a board so rod can fit through then put a pin in the small end to stop from coming through and crank on the clutch clockwise while crank is on the down stroke. This is probably a solution that would take the longest but once you got it you'd almost **** how easy it came off.

 

[mdavlee]

Stihls have a nut on the clutch. You just have to have a deep well socket or wrench to fit over the crank stub.

 

[Big_Wood]

Well there ya go. Should be real easy to get off unless that crank half is spinning in the case.