Rounded Torx chipper bolts !!

[mart]

What size is the torx key needed to remove the blades on a 125/150

 

Cheers

[roseyweb]

Those bolts are terrible,

I hate changing them and they can always take a in determinant amount of time and cut and bruised fingers.

I did a speed change on out 190 this morning 10 mins and was breeze.

Thats why our 150 now gathers dust

[Johny Walker]

dont forget to use a good dallop of copper grease ,

[markieg31]

went to change the anvils on my entec and found that somebody had already tried it before me. All but one was rounded out. the two small ones i heated up till they where really warm then smacked a spline bit in to the rounded hex head and they came out so easy. With the larger one we had to weld a nut on the top. Obviously it heated the existing bolt and i think that helped as i put a spanner on the nut and it came out a treat. all new bolts going back in.

[Kenty]

Had this happen to me once. Used a dremel to cut a slot & unscrewed it with a screw driver.

I now replace the bolts at every blade change, save a lot of grief.

[roseyweb]

Had this happen to me once. Used a dremel to cut a slot & unscrewed it with a screw driver.

I now replace the bolts at every blade change, save a lot of grief.

 

Sounds expensive

[Tom D]

Do the TW bolts have nuts on the back or are they threaded into the disc?

[testcricket01]

Do the TW bolts have nuts on the back or are they threaded into the disc?

 

no nut on the back just threaded into the flywheel

[Mitch]

Never had an issue changing mine, had mine 8 yr, torque to 45 ftlb, copper grease first , clean out before a put bit in

Know a lad who had to cut blades in half so he could remove stripped head

 

Prevention better than cure

[aspenarb]

i clean all the crap out of the heads of the bolts on my tw using a dentists tooth scraper thing £1 from a carboot. it works really well.

 

This in my experience on the TW is key, that and a decent quality torx bit. The other thing is to make sure the flywheel is locked up so you can concentrate on keeping the torx bit square and located on the bolt while undoing them. In the event of having to deal with a mashed up head ( normally when the doughnuts have had a go at changing them ) I have found a decent quality cold chisel will have them chopped round and undone in seconds. It also helps to gag the bolt in copper slip prior to fitting.

 

Bob

 

edit. I need to learn to type faster.