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'98 S1 primary chaincase oil drain plug hole thread stripped
https://ukbeg.com/forum/viewtopic.php?f=8&t=15600
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Author:  Scootfast [ 02 Oct 2012 00:25 ]
Post subject:  '98 S1 primary chaincase oil drain plug hole thread stripped

Does anyone know the size of the oil drain plug thread please..?
Suspect I need to helicoiI it so I can retain the original magnetised plug but don't know what size helicoil kit to get ? It's a '98 S1WL
Many thanks !

Author:  pash [ 02 Oct 2012 07:19 ]
Post subject:  Re: '98 S1 primary chaincase oil drain plug hole thread stri

My money is on 1/2 UNF cos I don't reckon it changed from the XB and the XB shares the same drain plug for primary and engine oil tank...

viewtopic.php?p=197803#p197803

Author:  Scootfast [ 02 Oct 2012 10:02 ]
Post subject:  Re: '98 S1 primary chaincase oil drain plug hole thread stri

Ok thanks, 1/2 UNF sounds likely - am thinking I'll get one of these kits:
http://www.ebay.co.uk/itm/Draper-Genuin ... _528wt_887
Has anyone else done this fix ? any tips..?

Author:  Adam [ 02 Oct 2012 10:58 ]
Post subject:  Re: '98 S1 primary chaincase oil drain plug hole thread stri

I shudder when I see 'Draper' lOl

Author:  pash [ 02 Oct 2012 11:24 ]
Post subject:  Re: '98 S1 primary chaincase oil drain plug hole thread stri

Tips?

1. Get an insert no longer than the depth of the casting
2. Drill and tap the hole squarely
3. Clean the swarf up thoroughly
4. Tighten the plug with some mechanical sympathy (even though the helicoil will give you a stronger thread)

Has it done once on my VFR, but that was with a timesert and it was deeper than the casing so there was a smidgen of oil left in the sump when draining, but I was young then and the guy that did it for me told me it would be 'alright'...

Author:  Scootfast [ 02 Oct 2012 23:46 ]
Post subject:  Re: '98 S1 primary chaincase oil drain plug hole thread stri

Cheers :yup: :D :yup:

Author:  muddyman [ 07 Oct 2012 12:18 ]
Post subject:  Re: '98 S1 primary chaincase oil drain plug hole thread stri

Yes same size, mine went viewtopic.php?f=8&t=8890 easy fix although Youv'e probably done it by now.

Author:  mojomick [ 10 Oct 2012 21:25 ]
Post subject:  Re: '98 S1 primary chaincase oil drain plug hole thread stri

After yoiu've drilled the hole, countersink it before you tap it.

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