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growler
Joined: 06 Apr 2012
Posts: 9
Location: north yorks
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 Posted: Mon Sep 10, 2012 10:24 pm Post subject: Front sprocket |
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| OK Guys i know its rude to ask for help on a first post, but here it is. Went to Helmsley (local meet) and had two false neutrals on way( or so i thought) Parked up had a nosy about got back on sb6 got half a mile and no drive. Front spocket nut loose. So does anyone know if there is a locking washer or is the nut supposed to be self locking. PS i think its a MK1 |
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oily
Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire
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| Posted: Mon Sep 10, 2012 10:29 pm Post subject: |
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There's a locking bolt that screws into the end of the shaft. I'll see if I can find a picture 
EC had this very same problem, sure he'll be along shortly.
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SB6 mk1 (project mega light, big bore)
Sb6 mk2 ( Big Bore)
Sb6 mk2 ( Restored)
Sb6R fighter
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oily
Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire
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growler
Joined: 06 Apr 2012
Posts: 9
Location: north yorks
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| Posted: Mon Sep 10, 2012 10:36 pm Post subject: |
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I had a feeling there was a something there but its not there any more !
Cheers Oily. You can add 174 to the register if you like |
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Mon Sep 10, 2012 10:56 pm Post subject: |
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Lucky man. I lost my nut completely (settle down at the back).
As Oily said there should be a M6 bolt with a bigish washer
Reaching the main nut isn't so easy, from memory it's a 32mm, you can use a spanner but it's not easy to do the final torque. If you use a socket you need to cut it to half depth to get it onto the nut ... or you might try a ratchet spanner (silverline make one)
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growler
Joined: 06 Apr 2012
Posts: 9
Location: north yorks
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| Posted: Wed Sep 12, 2012 9:27 pm Post subject: |
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Lucky Man? Get this, new sprocket came today so straight in garage and sprocket on. Started to look around for a washer and 6mm bolt and in the bits i picked up after removing fairing there it was. A 6mm bolt ( threads well worn) with concave spring washer. It must have sat in the fairing until i removed it.
I need to try that lottery thing |
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oily
Joined: 05 Apr 2008
Posts: 4788
Location: worcestershire
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| Posted: Wed Sep 12, 2012 9:30 pm Post subject: |
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...Don't forget the copious amounts of thread lock
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SB6 mk1 (project mega light, big bore)
Sb6 mk2 ( Big Bore)
Sb6 mk2 ( Restored)
Sb6R fighter
Sb6 or Sb7 WANTED |
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growler
Joined: 06 Apr 2012
Posts: 9
Location: north yorks
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| Posted: Wed Sep 12, 2012 9:53 pm Post subject: |
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| Any particular make. Locktite scares me. |
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Wed Sep 12, 2012 11:06 pm Post subject: |
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Just use the Blue stuff it allows you undo it again and you only need it on the last few mm of the thread.
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Desmo_Demon
Joined: 19 Sep 2011
Posts: 240
Location: Easley, SC, USA
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| Posted: Wed Sep 12, 2012 11:37 pm Post subject: |
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| Evilchicken0 wrote: |
| Just use the Blue stuff it allows you undo it again and you only need it on the last few mm of the thread. |
Blue Locktite works well, but you must always remember to have the threads of both the shaft and nut clean, degreased, and dry for it to work correctly. The red is more permanent and required heat to break it loose. I use a lot of the blue Locktite.
IIRC, when using Locktite with aluminum (not in the situation of the front sprocket), I've had the blue fail to work very well and comes loose after a while. I was told by a buddy of mine that Locktite has one specifically for aluminum. I think it is green, but don't remember. I can never remember the actual numbers of the different products. The blue is something like 242? (I could look it up, but I'm lazy  ).
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Thu Sep 13, 2012 1:49 pm Post subject: |
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| growler wrote: |
| Lucky Man? Get this, new sprocket came today so straight in garage and sprocket on. |
Is this a SB6 ..... ???
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growler
Joined: 06 Apr 2012
Posts: 9
Location: north yorks
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| Posted: Thu Sep 13, 2012 10:20 pm Post subject: |
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Yes SB6, yes sprocket straight on. Already had engine dropped and ready.
(Electric winch speeds job up) |
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Thu Sep 13, 2012 10:43 pm Post subject: |
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ahhh, dropped and ready huh, you rememberred the spacer behind the sproket I hope.
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growler
Joined: 06 Apr 2012
Posts: 9
Location: north yorks
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| Posted: Thu Sep 13, 2012 10:55 pm Post subject: |
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| Don,t you just hate it when someone knows more than you do. So what size spacer am i looking for? Good job i haven't had time to put back together. Thanks for all your help and advice. |
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Evilchicken0
Joined: 12 May 2010
Posts: 2996
Location: London
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| Posted: Fri Sep 14, 2012 1:13 pm Post subject: |
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You'd best ask oily that one - I'm sure they spaced it, the back tyre's wider see
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