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Stiff spark plug. - It snapped.

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 Topic moved: from The Workshop to Moderator's Forum by stinkwheel (4 May 2016 - 14:56)
 Topic moved: from Moderator's Forum to The Workshop by stinkwheel (4 May 2016 - 18:53)
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chris-red
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PostPosted: 14:18 - 14 Mar 2016    Post subject: Reply with quote

Someone might give a better answer here, so don't take it as gospel, but there is nothing you can do beyond doing what you are doing it will either come out or it won't, I can't see any benefit of leaving in a knackered plug that might be seized against having a go and possibly breaking it.

Plus gas as you have said and then be gradual increasing pressure till it comes out (or snaps)

Realistically leaving it has probably just made it worse. Laughing
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Nemo
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PostPosted: 14:27 - 14 Mar 2016    Post subject: Reply with quote

There's only one way to get it out.

Could try plus gas and heat, either run the engine for a while or get a torch.
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chris-red
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PostPosted: 14:34 - 14 Mar 2016    Post subject: Reply with quote

Nemo wrote:
There's only one way to get it out.

Could try plus gas and heat, either run the engine for a while or get a torch.


The idea of heating is for the metal to expand and release the grip of the corrosion that made them lock, on an part that is constantly going through heat cycles I can't see it being effective.
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Skudd:- Perhaps she just thinks you are a window licker and is being nice just in case she becomes another Jill Dando.
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DrSnoosnoo
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PostPosted: 15:30 - 14 Mar 2016    Post subject: Reply with quote

Another suggestion which should not necessarily be followed. I once had similar on a spark plug.

I (perhaps stupidly) switched my ratchet and tightened it a very small amount. This helped me win on that occasion.

Good luck. But I'd do what you're doing in preparation; penetration oil all over it for a good while.
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redeem ouzzer
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PostPosted: 15:37 - 14 Mar 2016    Post subject: Reply with quote

I hope it snaps off in the head and turns the bike into paperweights.
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Howling Terror
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PostPosted: 17:55 - 14 Mar 2016    Post subject: Reply with quote

Like oil filters I found they unscrew easier when the engine is hot.
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RhynoCZ
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PostPosted: 18:10 - 14 Mar 2016    Post subject: Reply with quote

GT200Fan79 wrote:
I hope it snaps off in the head and turns the bike into paperweights.


Helicoil.
https://pop.h-cdn.co/assets/cm/15/05/54c868703475a_-_sparkplug-threads-lg.jpg
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chris-red
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PostPosted: 18:35 - 14 Mar 2016    Post subject: Reply with quote

God.i wrote:
I enjoy a good workshop challenge.


Apparently not as you don't want to undo a spark plug Laughing
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Pete.
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PostPosted: 18:56 - 14 Mar 2016    Post subject: Reply with quote

Not much to do but try. Do it on a day when you aren't depending on it and have a backup plan ready.

Forget about taking it to a garage and expecting it to be fixed for free. They will just ring up and tell you one of your plugs has sheared off and it's £xx.xx to repair it. It's not their fault it seized.
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Nemo
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PostPosted: 18:58 - 14 Mar 2016    Post subject: Reply with quote

RhynoCZ wrote:
GT200Fan79 wrote:
I hope it snaps off in the head and turns the bike into paperweights.


Helicoil.
https://pop.h-cdn.co/assets/cm/15/05/54c868703475a_-_sparkplug-threads-lg.jpg


I reckon a time sert would be better in this situation, if the plug did snap.

Aluminium expands quicker than the spark plug, hence heating it to loosen the grip, not just for braking corrosion.

Pete. wrote:
£xx.xx


You appear to have put the decimal in the wrong place.
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sickpup
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PostPosted: 22:26 - 14 Mar 2016    Post subject: Reply with quote

Make sure the drain hole is clear by pouring boiling water around the spark plug and making sure it drains. If it is blocked using a bit of wire unblock it.
Shine a torch into the plug recess and check there is no debris in it. If there is boiling water with washing up liquid and poke out the drain hole.

Once clear it should be easier to remove the plug as the plug spanner will sit lower on the plug.
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RhynoCZ
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PostPosted: 22:43 - 14 Mar 2016    Post subject: Reply with quote

God.i wrote:
Alternatively I could sell it now and get an FZS 1000 but then again I enjoy a good workshop challenge.


Time to look around for a new engine head. Just to get an idea how much they are going for, at the moment. If you can't fix it, there are people that can and I bet it's not gonna burn a hole in your pocket either. A new head would be the worst case scenario. Thumbs Up
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Nobby the Bastard
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PostPosted: 22:47 - 14 Mar 2016    Post subject: Reply with quote

Another good idea is to tape a thin straw to the end of a vacuum and use that to suck out anything too big to go through the drain holes.
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sickpup
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PostPosted: 22:48 - 14 Mar 2016    Post subject: Reply with quote

RhynoCZ wrote:
A new head would be the worst case scenario. Thumbs Up


Only if you are an incompetent muppet...
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Commuter_Tim
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PostPosted: 22:48 - 14 Mar 2016    Post subject: Reply with quote

GT200Fan79 wrote:
I hope it snaps off in the head and turns the bike into paperweights.


Well you would have a new Avatar image then. Thinking
You know I can't help but think that your motivation here isn't entirely selfless.
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The Artist
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PostPosted: 13:15 - 18 Apr 2016    Post subject: Reply with quote

Remove head

Drill it out

Hope threads don't get damaged in the process. If they do, you will need to use a helicoil.
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Paddy.
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PostPosted: 13:22 - 18 Apr 2016    Post subject: Reply with quote

Ride as a triple?
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Polarbear
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PostPosted: 13:24 - 18 Apr 2016    Post subject: Reply with quote

FFS, That plug hasn't seen daylight since Yamaha inserted it in Japan.
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andyscooter
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PostPosted: 13:27 - 18 Apr 2016    Post subject: Reply with quote

Sell it to skudd
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ADSrox0r
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PostPosted: 13:55 - 18 Apr 2016    Post subject: Reply with quote

Head's gotta come off regardless of what method you use to rag it out.
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Pjay
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PostPosted: 13:58 - 18 Apr 2016    Post subject: Reply with quote

Ghetto method

https://www.screwfix.com/p/screw-extractor-5-piece-set/18643

Dont bitch at me if it dont work, it has twice for me in the past.

Remember, it's already borked.
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Old Thread Alert!

The last post was made 5 years, 190 days ago. Instead of replying here, would creating a new thread be more useful?
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