Thumper Club Forum

Technical => Bike Problems/Questions => Topic started by: onthecheap on February 20, 2017, 01:38:54 PM

Title: XBR valve collets
Post by: onthecheap on February 20, 2017, 01:38:54 PM

Does anyone have 2 valve collets please or know of what others are suitable ?
Whilst fitting them today I managed to loose 2 at around 500mph across the man cave. Yes I tried to look in vain but had to console myself with a good old tourettes outburst !

Title: Re: XBR valve collets
Post by: mthee on February 20, 2017, 05:07:32 PM

That's effin' bad luck  ::) No collets, sorry.

Title: Re: XBR valve collets
Post by: SteveC#222 on February 20, 2017, 09:52:27 PM

If you don't have any luck, the parts manual says it is part no 14781-MB9-000.  David silver can get them as special order for about £3.50 each.

https://www.davidsilverspares.co.uk/parts/by-part-number/hpart_14781MB9000/ (https://www.davidsilverspares.co.uk/parts/by-part-number/hpart_14781MB9000/)

Title: Re: XBR valve collets
Post by: onthecheap on February 22, 2017, 01:22:07 PM

Many thanks chaps Dave Silver it is then. Best order a spare pair !

Title: Re: XBR valve collets
Post by: iansoady on February 22, 2017, 03:01:51 PM

I'm sure there is a little pile of these things hiding somewhere in my garage.

When I started rebuilding the Sunbeam, I had the head upside down on the bench with valves, springs etc fitted. I just moved it slightly and both exhaust collets popped out! If it had happened when the engine was running it would have been expensive.

Model 10 spares being rather elusive I turned a new pair up out of an old metric HT bolt I had lying about.