Front disc bolts

[Green Boy]

Hi all,

Despite using plenty of heat some of these bolts rounded off in situe as they were being tightened.

Has any one had any experience of drilling them out and if so did you manage to helicoil the thread again?

Any tip other than 'do it carefully' would be much appreciated.

 

[Mrblackrifle]

Have you tried using an easy out using an easy out would remove the bolt without the need for retapping the hole or helicoiling

 

[JayC]

Hi all,

Despite using plenty of heat some of these bolts rounded off in situe as they were being tightened.

Has any one had any experience of drilling them out and if so did you manage to helicoil the thread again?

Any tip other than 'do it carefully' would be much appreciated.

You were using heat to put the bolts in?

 

[ianboydsnr]

Heat them up, bang in a torq fitting that's slightly bigger, unscrew!

 

[Steptoe]

Do not use an easyout. A tool of the devil.

A device so beloved by internet mechanics who've read about them but never actually used one, or had to remove a broken easyout stud.

 

[Mrblackrifle]

I have used easyouts on many occasions to remove bolts on aircraft parts at work Ive never had a problem using them.

 

[tosh23]

How weird is that...
I just had the same problem getting my rear disc off, Despite being super careful and using some freeway oil I still managed to round off three of the bolts holding the fubar disc on...
I was going to take it to an engineer and pay good money for them to do the job right...
A good friend said bring the wheel around and I will get the bolts off for ya...

Very sceptically I drove around to his house and I kid you not, he made it look very very easy....
He heated the bolt up with a torch (flame) for about 15 seconds then hammered on a torx socket that was bigger that the rounded hole.
Then he put on the ratchet ( six inches long) and just turned them off..

I will have to get new alan bolts but they were off...Im not saying the job is easy, Im just saying he made it look easy....good luck

 

[Steptoe]

I have used easyouts on many occasions to remove bolts on aircraft parts at work Ive never had a problem using them.

That's strange, my neighbour is an aircraft technician, 40 years of service, and won't use an easyout on his bikes.
Have you tried to remove the stud of a broken one ?



And with this instance the part the bolt it stuck into is a raised pedestal. An easyout can make the bolt stud spread and the pedestal fracture.

 

[Mrblackrifle]

Different strokes for different folks I suppose Ive never broken an easyout
before but I do bow down to your superior knoledge
YES NEVER USE AN EASY OUT
I guess I always did have the oppertunity if they did brake to send the offending part to the machine shop
Aircraft engineers are a funny old bunch

 

[Flipfly]

My experience with disc bolts is they need to heated up loads. As for getting them out, torx bits are a winner

 

[The Grey One]

Do not use an easyout. A tool of the devil.

A device so beloved by internet mechanics who've read about them but never actually used one, or had to remove a broken easyout stud.

My feeling exactly but don't forget bar room experts!

John

 

[Green Boy]

Thanks for the thoughts all. Will go for the slightly larger torx option + heat and see how that goes.

To clarify any confusion, i was using a hot air gun to get them outbtu as they've been in situ for a long time, they were not keen to shift!

 

[boatman]

Just get a good fitting torx/allen and a GOOD quality impact driver,
And go at it like you MEAN buisiness n, t jobs a good un

 

[MarkShelley]

A couple of weeks back I went to fit a Steptoe rear disc and could feel that the bolts were rather tight so I went for my impoact driver. A couple of good whacks and it was obvious that this method wasn`t going to work. Rather than cause a big problemI dropped off the wheel to my friendly mechanic. He told me to never use an impact driver on disc bolts. His method is a good fitting bit (in my case a hex on the 1100) and a very long lever. Apply pressure very slowly increasing the intensity and eventually they will `ping`

 

[richierex]

Different strokes for different folks I suppose Ive never broken an easyout
before but I do bow down to your superior knoledge
YES NEVER USE AN EASY OUT
I guess I always did have the oppertunity if they did brake to send the offending part to the machine shop
Aircraft engineers are a funny old bunch

Are you sure you are an aircraft engineer, whatever that is, `cos you cannot spell "break".

opportunity looks wrong too. Oh and knowledge.

I also agree easyouts are useless as they spread the fixing they are trying to release, go figure. never got one to work. I go with the heat and torx bit method every time.

 

[Mrblackrifle]

Im tired of this now if you want to talk more in depth about my spelling or question my job role
please feel free to pm me !

 

[Mrblackrifle]

Just seen your not a SUBSCRIBER to the site so I guess you cant pm me

 

[richierex]

Just seen your not a SUBSCRIBER to the site so I guess you cant pm me

Its true. I`m not, but I know my way around machinery and easyouts / easy outs, are NOT GOOD

 

[warmshed]

Snapon do some short easy outs that really just do what the torq bit you suggest do, except they bite well. They don't break like the long far eastern ones and as such should not be dismissed so readily. http://www.ebay.co.uk/itm/New-Snap-...434?pt=LH_DefaultDomain_0&hash=item3cd0e82c82

It may be what Mrblackrifle had used. Right tool for the right job?

 

[patzx12]

Dont use easyouts thats only for removing broken studs, you only have a rounded off problem.
I did an M20 BSA rear hub for a buddy the heads were well rounded, i TIG welded an old socket to the bolt heads.