Bollox!!

Oh fount of all knowledge.........

HTF am I supposed to remove an allen bolt that's seized solid and has
been previously chewed up by some ham fisted grease monkey? I tried to
get it out last weekend using the appropriate allen key but couldn't get
enough "bite" so I left it and bought a new impact driver this week.
Just been out there for 1/2 hour smacking the **** out of it and it
still won't move!

Before the angle grinder fetishists start, the damn things recessed and
I don't want to heat it up coz there's aluminium involved. Soooooo....
is it a case of having to drill it out or is there a more subtle way of
coaxing it that I'm missing?

Any help much appreciated!

TIA

 

Penetrating oil (Oi, stop sniggering at the back) or WD40 ?

Andy

 

Been there done that. Next!

Ta anyway.

 

Brake pad retaining pins? (took all mine out & copper-greased 'em
yesterday, as I do every autumn, coz I'm a smug bastard).

If it's too badly rounded for the allen key to grip, hammering in a
slightly over-sized torx bit has been known to work. Alternatively
gluing in an allen key with epoxy & leaving it overnight to harden can
also do the trick. Failing that it could be time to get the drill out,
although if it is a pad pin, with a threaded head, you could be in for a
bit of helicoiling as well.

--
Preston.

http://www.muddystuff.co.uk
Off-road motorcycle classifieds

'02 MV Senna '96 Tiger '00 XR400 '78 Fantic 250

 

No, handlebar retaining bolt (fork change required) although the whole
thing may get rebuilt this winter.

Nope, I think that drilling the head off will leave me enough room to
get a pair of stilsons on once the bar is removed.

Thanks for the ideas!

 

Look here first:
http://www.bodgesoc.freeserve.co.uk/fastners.faq

I'd go for the heat option, maybe with a blowtorch that won't actually
produce enough heat to melt aluminium. Thing is, the aluminium will
expand a lot more then the steel bolt, breaking the hold of the
corrosion that is holding the bolt so tightly. Try heating it up and
cooling it a few times (careful with the ally ;-)) and then smack ****
out of it again.

 

Sorry if this is a really dumb & patronising question, but are you
*sure* the impact driver's set to undo mode? Some of them can take a
surprising amount of effort to flip, especially when new.

--
Preston.

http://www.muddystuff.co.uk
Off-road motorcycle classifieds

'02 MV Senna '96 Tiger '00 XR400 '78 Fantic 250

 

Unfortunately it's recessed within the alloy bar housing. I don't want
to start chiselling it in case I damage the housing (as it's one of the
few /good/ parts left!!) :-D

Cheers!

 

That is a good point, well made. I have that Tshirt ;-)

 

Cheers Pip! If all else fails this will be the method I try before the
drill. What stops me doing this is that the bolt is recessed within the
bar housing and there's only around 3mm of alloy around the head for
50-60% of the diameter. Any heat applied will heat this much quicker
than the rest of the housing and the bolt. I can see this all going very
pear shaped and I'll end up needing a new top yoke & "clip-on"

Cheers!

 

Are you /sure/ you don't know me :-D That's the kind of thing I'd
normally do but yes it is... I checked that before I started getting
biceps like Arnie. I also had a couple of other toughies to get out and
the driver undid them OK. Proof if any was needed!
<thinks... wonder if they were left handed threads?>

 

This one has a 6mm thread. Not really a small one (although I told SWMBO
it was 20mm) ;-)

 

Shame. My other suggestion was going to be an extractor, but if the
screw you're trying to extract is not very big and *really* tight you
end up snapping the extractor and making it much harder to drill out.
DAMHIK,IJK,OK?

 

Made me grin and all.

 

Good point! Will do that /if/ it gets that far.

 

<Predictable Cane Answer>

"Buy a new bike you pikey ****"

</PCA>

 

:-D

 

So, out came the blow torch. Heated, impact driven, heated, impact
driven. Double blollox! Now that's completely fucked it, even the impact
drive bit wont grip it anymore.... out comes the drill, five yes, FIVE
drill bits later and it's still sat there laughing smugly at me... ****
knows what Mr. Suzuki did to these bolts but its burning my drill bits
out at an alarming rate!

Project GSX restore completed for today! Off for a pint. Bollox to it!

Wanted - top yoke and "clip on" bracket for GSX600F POS!

Have a good day (what's left of it!)

 

Mark Trotman was seen penning the following ode to ... whatever:

Angle Grinder. YKIMS.

 

Colin Irvine wrote

Innit. It is his own bloody silly fault for not taking an Angle Grinder
to it in the first place.

I dunno, it is always a steep learning curve for you kiddies innit eh?