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Series 3 caster angle

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

Series 3 caster angle

Postby alex_hughes » Sat Oct 02, 2021 5:06 pm

Anybody know what the correct caster angle is for series 3 please?

It is shown in a blurry sort of way on the many internet copies of the original blueprints, but I cannot make it out...

Thank you, Alex
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Re: Series 3 caster angle

Postby MickYork » Sat Oct 02, 2021 5:41 pm

What's the caster angle ?
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Re: Series 3 caster angle

Postby Fast n Furious » Sat Oct 02, 2021 5:44 pm

Steering rake?
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Re: Series 3 caster angle

Postby alex_hughes » Sat Oct 02, 2021 6:35 pm

Yes, steering rake…
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Re: Series 3 caster angle

Postby hullygully » Mon Oct 04, 2021 11:02 am

you had to ask about the area on the Innocenti drawing thats rough............ :shock:
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Re: Series 3 caster angle

Postby alex_hughes » Tue Oct 05, 2021 3:03 pm

well, to answer my own question, the angle as shown on the blueprint looks to me to be 23 degrees.

I have calculated this by dropping a .jpeg of the blueprint into a .dwg and measuring the angle using the construction lines on the original drawing.

So until I am contradicted a Lambretta has a caster/steering rake of 23 degrees.

Alex

Update: I have found a better copy of the blueprint... the stated angle is 23 degrees...
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Re: Series 3 caster angle

Postby tv175lambretta » Wed Oct 06, 2021 10:10 am

Image
23 degrees it is
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Re: Series 3 caster angle

Postby hullygully » Wed Oct 06, 2021 10:22 am

that'll do for me bud :D
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