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Rear shock frame mount

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

Rear shock frame mount

Postby DaveTomo » Mon Aug 17, 2020 9:37 am

Frame mount for the rear shock/damper has threaded , no longer holds the nut. I am hopefully going to see if I can re tap it, possibly to M15, failing that has anyone used one of these ? https://www.ebay.co.uk/itm/Lambretta-re ... 1438.l2649 feedback appreciated.
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Re: Rear shock frame mount

Postby Tractorman » Mon Aug 17, 2020 11:14 am

If you use one of those drill your pilot hole before you cut the damaged thread off, using the central indent. You will then get the hole central.
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Re: Rear shock frame mount

Postby DaveTomo » Mon Aug 17, 2020 11:19 am

Thank you Tractorman, good call never thought of that I was just going to cut it off :oops: , hopefully I can get it to M15 if not I'll have to go with the threaded repair fix
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Re: Rear shock frame mount

Postby hullygully » Mon Aug 17, 2020 12:03 pm

cant you get a die onto it or a thread file?
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Re: Rear shock frame mount

Postby nickw » Mon Aug 17, 2020 2:51 pm

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Re: Rear shock frame mount

Postby Tractorman » Mon Aug 17, 2020 3:32 pm

DaveTomo wrote:Thank you Tractorman, good call never thought of that I was just going to cut it off :oops: , hopefully I can get it to M15 if not I'll have to go with the threaded repair fix


Why M15?
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Re: Rear shock frame mount

Postby DaveTomo » Mon Aug 17, 2020 5:16 pm

Have tried a m16 die (loosened the tank to move it over to the left to be able to get the die to turn with the die holder handles), too far gone to take a grip.
M15 was just thinking out loud next size down,but I don't think I'll be going down that route now.
Nickw - that could be solution if plan B doesn't work.Going to try a Whitworth thread and see if that will do it
Appreciate everyone's help thank you
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