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Cush drive spring length

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

Cush drive spring length

Postby Scooterslag » Sat Jun 03, 2023 4:28 pm

Just doing a rebuild and sorting out some bits, I've got a couple of cush-drive springs and don't know if they are S3 or the shorter S1 type, can't find any measurements so I haven't got anything to compare it to. What's is the length of the later spring? cheers Paul
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Re: Cush drive spring length

Postby Scooterslag » Mon Jun 05, 2023 11:19 pm

anyone? if someone could measure the height of the spring - that would be smashing, thanks again Paul
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Re: Cush drive spring length

Postby nickw » Tue Jun 06, 2023 9:15 am

Managed to get one of mine measured. 34.4 to 34.7mm if that helps
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Re: Cush drive spring length

Postby Scooterslag » Tue Jun 06, 2023 12:52 pm

nickw wrote:Managed to get one of mine measured. 34.4 to 34.7mm if that helps


thanks for that, cheers Paul ;)
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Re: Cush drive spring length

Postby hullygully » Tue Jun 06, 2023 5:35 pm

is that measurement with the spring compressed bud as seams a tadge small :?
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Re: Cush drive spring length

Postby Cgt75b » Tue Jun 06, 2023 8:14 pm

Just for comparison

Not under any load

36.12 - 37.32

I hope that helps.
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Re: Cush drive spring length

Postby Scooterslag » Tue Jun 06, 2023 8:59 pm

Cgt75b wrote:Just for comparison

Not under any load

36.12 - 37.32

I hope that helps.


Cheers , yep that's not too far off what the two springs I've got measured, thanks Paul :)
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Re: Cush drive spring length

Postby nickw » Tue Jun 06, 2023 9:09 pm

hullygully wrote:is that measurement with the spring compressed bud as seams a tadge small :?


No, not under any load. Now I'm worried lol
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