Advice needed

[darkember]

Removed my headers today & thought I was being clever. The rear ones came of real easy & so did the bottom front one all be it the complete stud came out still attached to the nut. No problems so far. Decided not to use the splitter on the last one, as it had started to move as had the previous front one. What a mistake, & yes it sheared

As from the photos I am able to get a nut fully onto the remaining thread. How would be the best way to extract this offending nuisance? Carl I do believe you have this same issue. Have you been able to sort it as yet.





All ideas much appreciated

[MacV2]

There appears to be several ways to do this.

Weld a nut on, Grind flats to get a spanner on, even dremell a fraction of the head off.

Whatever you choose use plenty of Plus Gas or something let it soak over night.

Somewhere there is a thread about the dremell option have a search.

The welding option is no good if you don't have the kit but the heat produced helps in the loosening effect, so try a bit of heat from a blow torch.
Avoid setting your bike, yourself or your garage on fire if you can.

Lloydie has just done his, he'll prob be a long shortly with words of wisdom.

[darkember]

Thanks Mac will be soaking if for the next week with plus gas & seeing if I can rent a welder to spot weld that nut on. Would be interested to hear the dremel method.

[lloydie]

Step one .

Get ya dermal out with a big black cutting disc on and remove 3mm of ali from the base of the stud .

Step two .

Fit a pink grinding bit in the dermal and grind two flats on opposing sides of the stud till you can just tap fit an 8mm spanner on .

Step three .
Go in the house and have a few so it all can cool down .

Step four .

Heat lots of it . Heat up the ali around the stud with a blow touch then fit the spanner and tap the top of the stud with a small hammer and undo the stud .

Step five don't try to undo a exhaust nut again as it's much less hassle to use a splitter to start with :-)

[lloydie]

Thanks Mac will be soaking if for the next week with plus gas & seeing if I can rent a welder to spot weld that nut on. Would be interested to hear the dremel method.

To be honest plus gas won't do anything apart from making your garage smell nice :-) .

If none of the suggestions works for you it will be a head off and have it drilled out and a machine shop and new head gasket too .
Good luck with it

[darkember]

Thanks Mac will be soaking if for the next week with plus gas & seeing if I can rent a welder to spot weld that nut on. Would be interested to hear the dremel method.

To be honest plus gas won't do anything apart from making your garage smell nice :-) .

I have heard heating & adding candle wax can help.

[Jamoi]

I did lloydie's suggestion the other day, I only had about 3mm thread sticking out but worked perfectly.

I'd also suggest short, sharp movements on the spanner as a long slow movement is less likely to break the seal between bolt and female thread

Sent from my GT-19505 using Telekinesis

[Bleh]

Weld a nut on, Grind flats to get a spanner on, even dremell a fraction of the head off.

Alternatively, use a ball joint hammer and tap the protruding thread which will flare it out and after some time, would be flush with the nut and offer a good bind for removing. In addition, lube it up considerably and give it a couple of decent taps with a hammer in an attempt to loosen/ free it up a bit, best done two/ three times a day for a few days to increase chance of success. This has been successful for me in the past.

Another thing that has worked for me (on two separate occasions) when there hasn't been sufficient thread left to work with is VERY carefully using a dremel to grind the remainder down as much as possible, using a punch, mark as close to the center as you can and start to drill (if you can get in there) with a good quality 2mm then 4mm and so on. Now you choose between two options (or try one then resort to the other if unsuccessful);

1 - Use E-Z outs in an attempt to free the thread (this has worked for me on one occasion but not another), or,

2 - Continue to drill holes in relevant increments until you have removed all of the nuisance material then Heli-Coil it.

All cheap and effective methods which, as I've said, have worked for me in the past but others may have different experiences which have been successful. I'm only suggesting what's worked for me.

Another thing, as I type this I can't recall whether the thread said it was the front or rear which has gone but if it's the front and you get to the point of having to need to drill, removing the front end (leaving triple trees in place obviously) will save you all the head work of removing the head, getting it skimmed and purchasing a head gasket which you should do to the other also (in an ideal world, but is our world ideal really?? )

Hope you manage to get it out without to much bother.

Good luck

[darkember]

All good stuff there will have a go tomorrow. I do seem to have a decent amount of thread left & also own a set of evil sharp toothed thin nosed mole grips which should sit nicely between the nut & head. Will heat, tap & twist & see how it goes.

[Watty]

+1 on the welding the nut on ( mig preferably as its more controllable ). It's never failed for me, even studs that have snapped off flush

[darkember]

Step one .

Get ya dermal out with a big black cutting disc on and remove 3mm of ali from the base of the stud .

Step two .

Fit a pink grinding bit in the dermal and grind two flats on opposing sides of the stud till you can just tap fit an 8mm spanner on .

Step three .
Go in the house and have a few so it all can cool down .

Step four .

Heat lots of it . Heat up the ali around the stud with a blow touch then fit the spanner and tap the top of the stud with a small hammer and undo the stud .

8mm spanner the stud is well smaller than that even a 7mm is too large, managed to tap fit a 6mm. Hopefully that will do. How long do u apply heat to the surrounding area for before tapping & turning??

Step five don't try to undo a exhaust nut again as it's much less hassle to use a splitter to start with :-)

[lloydie]

Not long 30 seconds or so

[darkember]

Not long 30 seconds or so

Damn thing will not budge with firm pressure on the spanner

[lloydie]

Give it more heat !
Did you remove 3 mm from the engine ?

[macdee]

have you tried putting pressure on the spanner and hitting the nut with a hammer at the same time
(knowen in these parts as shocking )