Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models
by bert one » Tue Sep 15, 2015 9:04 pm
Hi, do any of you good folk know what 17° equates to in millimetres, & if so, how is the calculation made?
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bert one
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by Knowledge » Tue Sep 15, 2015 9:20 pm
Are you asking how many millimetres around the outside of the flywheel, or how many millimetres of travel before TDC?
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Knowledge
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by MickYork » Tue Sep 15, 2015 9:33 pm
I know "Bert" and I think he's asking about the marks on the mag flange, back from TDC. Would the measurement be "as the crow flies" or curved around the housing......if you get my drift
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MickYork
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by bert one » Tue Sep 15, 2015 10:53 pm
Yeah, btdc. Going on the calculator it's 1.6mm ..... std' crank & rod (58/107).
Handy tool that ...... another one 'bookmarked'!
Thanks for sharing & thanks one & all for replies

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bert one
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by bert one » Tue Sep 15, 2015 11:02 pm
bert one wrote:Yeah, btdc. Going on the calculator it's 1.6mm ..... std' crank & rod (58/107).
Handy tool that ...... another one 'bookmarked'!
Thanks for sharing & thanks one & all for replies

Should have said I meant piston movement, which is what I'm after, as it's for setting the timing with a dial gauge as opposed to the 'positive stop' method prior to strobing

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bert one
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