Bar stud that's damaged help?!!

[MattyF]

May have over tightened the bar nut on the Ms 150, the nuts not coming off any time soon and when un tightening its un screwing the bar stud oyt.

If this is totally removed and a new stud and but fitted should this be ok ? Would the new one need thread lock as well or have I just knackered the lot as I seem to recall I've possibly done this before and needed the hole for the stud re tapping.

[Darrin Turnbull]

Which one do you mean , the clutch cover screw or the bar tightening screw

 

[MattyF]

Clutch cover screw mate.

[spudulike]

May have over tightened the bar nut on the Ms 150, the nuts not coming off any time soon and when un tightening its un screwing the bar stud oyt.

If this is totally removed and a new stud and but fitted should this be ok ? Would the new one need thread lock as well or have I just knackered the lot as I seem to recall I've possibly done this before and needed the hole for the stud re tapping.

 

I believe the bar stud just screws in to the plastic case, if the thread is still OK, you should be able to fit a new one and would stick it in with a little Loctite 270 as this dries to be bullet proof.

 

You could take the bar stud out, free the nut and then ensure the outer thread is OK and then refit with thread lock if happy with the outer thread.

 

Don't you just wish you were still just down the road:001_rolleyes:

[MattyF]

I was hoping you would not say it's in plastic as I can't get the thing off, but never mind... The locktite is a great tip thanks , think I'll order a new stud as it's still usable until I change the chain it seems ...Steve the only time I wish that is when my saws break !! I've wanted to move back here since we moved when I was a kid!!

[spudulike]

I was hoping you would not say it's in plastic as I can't get the thing off, but never mind... The locktite is a great tip thanks , think I'll order a new stud as it's still usable until I change the chain it seems ...Steve the only time I wish that is when my saws break !! I've wanted to move back here since we moved when I was a kid!!

 

Just undo the nut and let the tightness of the nut undo the stud, put some grease on the external thread of the new one, put the nut on it, put some thread lock on the internal thread, put it in and crank it up tight.

 

Let the thread lock go off over night and then put a socket on the nut and really wallop the socket wrench to jolt it off. Don't do this slowly as you may just undo the stud again but the 270 I recommend is a permanent fix and once dry, very little will shift it but not sure about plastic fitment.

 

If the plastic thread is buggered, you may need to fit an oversize stud or get creative. It must be in plastic and not go through to the engine casting as I have had engines out of MS150s and not had to remove the stud before.

 

Glad you are feeling at home, think Fred has taken up your place now with his saw collection:001_rolleyes: