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Bit boring - exhaust collars/collets, getting it right

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Sprunghub:
I'm coming out of hibernation....& thinking about going back in, given the turn in the weather  ::)

Last week the urge took me to take off the Motad system from the F1 & put the original exhaust back on.  I made the incorrect assumption that the Motad would be rigged with the original exhaust collets.  It wasn't - as anyone with a Motad will know, they appear to come as part of their system.  The first "gremlin" I encountered was that there were no ring gaskets in place.  Now this probably shouldn't have been an issue, barring the escape of a bit of 'gas' - but.....it was, because one of the ends of the pipes, where they are bent over had split around about 75 % of the dia. of pipe #3  I think it was the stress of being stretched & not cushioned by a gasket as there are no signs of any corrosion.

Gremlin #'s 2 & 3 - get the Motad system off, offer up the "original" & discover (i) I now have no collets & (ii) the bracket on the Motad doesn't fit the OEM silencer :-[

So.....Motad back on - with some c/h port gaskets this time & start looking for an F1 exhaust bracket & some collets.  I found a NOS bracket on Ebay on a reasonable'ish BIN, so that's on its way, but the collars are proving a bit more difficult.  Silvers are 'out of stock' & the "proper" ones have a double shoulder, presumably to spread the weight of clamping the pipes in ?  My lads CB125 ones are the same length & dia. but they have a 'single' shoulder.  CMS.Nl appear to have them for not too much money - question is.......what is everbody else using ?? Is it a case of "making do" with single shouldered collars/collets or working & looking a bit harder to find some double shouldered ones ?

There are some 'used' ones on Ebay in the States.....fair looking condition & even with postage if they don't get too much interest, they may come at a reasonable price.   If there are better Uk sources though, I'd like to get them before the weekend ! ;)

Spitfire:
Can't help a lot as I bought mine from DSS, CMSNL are great but delivery is via sailing ship.

Cheers

Den

Bryanj:
(1) are you sure there were no gaskets as they turn to black rock and look like part of the casting

(2) i would have thought the earlier split collets would have worked but the only way to find out is try them

(3) try www.westernhillshonda.net but do email to see if they have them do not just believe the website ALSO be advised that only Airmail is available from the US now so it can be expensive if parcel is heavy

Sprunghub:
Cheers Bryan....no....definitely no gaskets - very surprised because the re-build was done by a Honda mechanic, but in all fairness, it may well not have been him who put the Motad on.

The split collets is what I'm after....but the 'correct' ones are effectively two layers, one atop the other ?

I''ll try that site - I found some listed at a Liverpool supplier, but when I rang they'd only got three....if any, as they we'rent sure their stock lists were up to date.

Bryanj:
Ive seen the ones you mean and not sure why the change of design, perhaps longer?

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