Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models
by Knowledge » Fri Jan 09, 2026 12:25 am
My slip joints leak on my expansion pipe (TSR Evo).
Is there a flexible sealant that can be used on slip joints in these challenging locations?
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Knowledge
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by nickw » Fri Jan 09, 2026 10:33 am
Hi Martin, hope all is well in the sunny south. Is this what you are after. I remember these type of slip joint rubbers were doing the rounds when I had a TSR Evo. This link is an example, I think I got mine from JB Tuning
https://www.ebay.co.uk/itm/357597185051 ... _MQAvD_BwE
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nickw
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by vegansydney » Fri Jan 09, 2026 6:17 pm
I've been using 100% silicon sealant on my exhaust joints for years, as have a number of friends. It's flexible, cheap and widely available. If it's good enough for professional MX racers, it's good enough for obsolete Italian shopping bikes

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vegansydney
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by Toddy » Fri Jan 09, 2026 8:02 pm
vegansydney wrote:I've been using 100% silicon sealant on my exhaust joints for years, as have a number of friends. It's flexible, cheap and widely available. If it's good enough for professional MX racers, it's good enough for obsolete Italian shopping bikes

+1
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Toddy
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by Knowledge » Sat Jan 10, 2026 1:11 pm
nickw wrote:Hi Martin, hope all is well in the sunny south. Is this what you are after. I remember these type of slip joint rubbers were doing the rounds when I had a TSR Evo. This link is an example, I think I got mine from JB Tuning
https://www.ebay.co.uk/itm/357597185051 ... _MQAvD_BwE
Hi Nick.
I am trying to seal at the header end of the pipe, but thanks for the link. M
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Knowledge
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