Exhaust Stud

carl1990 · Two Stroke Sniffer Joined: 27 May 2006 Karma :

hey all...

just here with a mate who`s exhaust stud has snapped flush against the head...
ill get a picture if i can
basicly...

The stud on the right is fine , the left port stud has snapped

will i be able to drill it out, and put a bolt in...
my dad mentioned something called easy outs.... Confused

i have NO idea what these are..
drill bits?

Any help please..
Ill get a pic ASAP

oh n the bike is a piaggio Typhoon, the once that wouldnt start a few weeks ago...
but thats done

Thumbs Up

Rookie · World Chat Champion Joined: 09 Feb 2005 Karma :

It will probably need helicoiling, not too expensive if you're getting it done by a garage, but apparently it's a complete git to do.

steveh · World Chat Champion Joined: 24 Aug 2004 Karma :

Drill it out, and re tap all the shite out of it.

you could get a stud removal kit, we have one at work.

is there any thread atall? perhaps u can tack weld a nut on the end, and screw it out.
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Current : 06 Zx10r, 07 Wr450f SM, 74 850 norton commando, 63 bsa b40, 1962 Triton 650, 67 Triumph Tr6r, 1955 Triton 750, 1978 TY250E.

carl1990 · Two Stroke Sniffer Joined: 27 May 2006 Karma :

cheekythomas · Crazy Courier Joined: 06 Aug 2006 Karma :

Its a form of reverse drill bit... basically as it screws into the stud, it trys to screw it out.

If its a typhoon 50, its not worth buying one for, barrels are only like £20... paying a garage to remove, clean and retap it will probably cost that. Wink

Walloper · Super Spammer Joined: 24 Feb 2005 Karma :

Heat can make them as hard as fuck.
If standard drills do not look at it and you are able to get a grinder. Sharpen the Tungsten Carbide Tips of a Masonery Drill the 'TAPPING' size of the hole.
Mark the centre of the stud and carefully drill out the stud.
Do not go like the hammers of fuck with the drill nor push it like a mad man. The carbide will cut the stud like butter.

Get a set of taps and clean out the threads that are left.

As you drill the last little bit of bolt may loosen and run down the hole. If you notice this ten stop and try to dig the bits out.

Brake cleaner is good for washing out the debris as you go.

Wear eye protection when grinding/drilling.

Bastad of a job.
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W-ireless A-rtificial L-ifeform L-imited to O-bservation P-eacekeeping and E-fficient R-epair

BanditsHigh · Worse than a woman Joined: 21 Mar 2005 Karma :

And if you try to use Eaziouts then be fricking careful ... they snap very easily ... and it would be extremely difficult if not impossible to drill them out!!

Good luck ... Barry

carl1990 · Two Stroke Sniffer Joined: 27 May 2006 Karma :

Walloper · Super Spammer Joined: 24 Feb 2005 Karma :

addmanniw · Derestricted Danger Joined: 18 Feb 2007 Karma :

OK, hows this solution - been holding on my ER-5 for 6 months and costs £3.99 and takes 5 mins.

Basically, assuming you still have 3 exhaust studs, then just use exhaust repair putty! make sure the exhaust manifold is on tight and then surround the exhaust with broken stud with putty and overlap the edge of the exhaust/engine casing.

It holds firm, no fumes escape and when it needs to come off, it will usually come away cleanly if you wiggle the exhaust off or failing that, it chips away easily.

Plus, if it does go again, you just patch it with more putty!

Got bike through MOT with this expecting to get advisory on it and did not even get this! So even the Ministry like it!