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2 in 1 rack fix

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

2 in 1 rack fix

Postby Fireman Ash » Thu Apr 02, 2015 7:56 pm

Hi all,
Anybody ever had to fix or know of a good bodge for the Cuppini 2 in 1 rear wheel carrier where the spare wheel bracket bolt hole tightens please? Seems some cracking around where the thread is due I'm guessing to what looks like a weak point, metals really thin.
Any help would be great or is it a new replacement jobby? :cry:
Cheers all
Ash
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Re: 2 in 1 rack fix

Postby Fireman Ash » Sat Apr 04, 2015 10:06 am

Could I maybe metal glue a large washer over the existing thread hole to strengthen the plate? Sounds like an excellent bodge? :D ;)
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Re: 2 in 1 rack fix

Postby johnnyXS » Sun Apr 05, 2015 8:54 am

picture would help ;)

We can then refer to our bodge books for a suitable solution !.

Whereabouts are you ? maybe someone local to you with a welder . I have both a MIG and an Inverter Stick welder
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Re: 2 in 1 rack fix

Postby Fireman Ash » Sun Apr 05, 2015 9:02 pm

In Torquay sunny Devon bruv.
Metal around the fixed internal nut is pretty thin and has cracked party due I think due to transmitted vibration.it's a cuppini Series 3 2 in 1 rack if that helps (in the absence of pics) ;)
Thanks for your help
Ash
English Riviera 8-)
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Re: 2 in 1 rack fix

Postby johnnyXS » Tue Apr 07, 2015 9:49 am

you are right about the cause of the cracks ,metal fatigue due to vibration and constant movement caused by the weight of the wheel and flexing of the rack fixing.

No glue on earth is going to hold it together for long. It needs welding or better still brazing but it might also need some reinforcement but until we can see a picture of the fault its impossible to say.

I am not familiar with the rack you mention so its poinless me trawling all over the net trying to find an example and then try work out which bit is broken . You need to upload a picture or at least post a URL of an online image so we can assess whats needed.
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Re: 2 in 1 rack fix

Postby HxPaul » Tue Apr 07, 2015 10:05 am

Fireman Ash wrote:Hi all,
Anybody ever had to fix or know of a good bodge for the Cuppini 2 in 1 rear wheel carrier where the spare wheel bracket bolt hole tightens please? Seems some cracking around where the thread is due I'm guessing to what looks like a weak point, metals really thin.
Any help would be great or is it a new replacement jobby? :cry:
Cheers all
Ash



Drill the thread out and fit a nylock nut and washer to the back where the tightening bolt comes through. :)
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Re: 2 in 1 rack fix

Postby Fireman Ash » Tue Apr 07, 2015 9:05 pm

In Rome as we type, dam Vespa everywhere and the spells working noooooo lol
Forgive me Pope John I have sinned, pics to follow Apostles lol
Ash
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Re: 2 in 1 rack fix

Postby johnnyXS » Tue Apr 07, 2015 10:41 pm

5 Hail Marys and 2 Our Fathers and let us not succumb to temptation again my Son ...... :roll: The evil Ve*$£ is everywhere
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Re: 2 in 1 rack fix

Postby Fireman Ash » Wed Apr 08, 2015 4:07 pm

:lol: :o :P :evil: :D
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Re: 2 in 1 rack fix

Postby Fireman Ash » Sat Apr 18, 2015 10:26 pm

HXPaul, I can't bud as it's inside and covered by a shield shape metal plate Cuppini style :shock:
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Re: 2 in 1 rack fix

Postby HxPaul » Sun Apr 19, 2015 9:07 am

Fireman Ash wrote:HXPaul, I can't bud as it's inside and covered by a shield shape metal plate Cuppini style :shock:

I have one on my series 2.The only thing I can suggest is drill through the shield and use a bolt slightly smaller in diameter but longer than the original bolt,with the new bolt through the hole fit a washer and nylock nut or dome nut.
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Re: 2 in 1 rack fix

Postby Fireman Ash » Sun Apr 19, 2015 10:47 am

Thanks Paul, not a great design is it, look good but that metals gotta only be mm thick with an internally brazed bolt I'd imagine....designed for a rubber ring morelike :? :)
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Re: 2 in 1 rack fix

Postby CHRIS in MARGATE » Sun Apr 19, 2015 11:10 am

Had the same. Large chrome washers over cracking. Also consider destressing the fitting by making fixing point holes larger so the rack sits down without having to be pulled into place.
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Re: 2 in 1 rack fix

Postby Fireman Ash » Sun Apr 19, 2015 12:51 pm

Did you metal glue the washer over? Distressing the fitting? It's distressing me lol :D
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Re: 2 in 1 rack fix

Postby Fireman Ash » Sun Apr 19, 2015 7:13 pm

Think I may just buckle strap the wheel to the rack uprights because when the wheels fitted it's lower and doesn't line up.to bolt it again means lifting up the wheel and bolting to the designed thread but then putting the full weight of the wheel and tyre on it, hence the cracking
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