Scooterotica

Does anyone actually make a chain alignment tool? If not how do you do it, I just wasted an hour with a vernier and clutch compressor bar, a la the manual, and made no conclusive measurement other than the rear sprocket is high, I'm not convinced by the dial gauge method described either, seems to be too much room for error?

bar and vernier (digital best really) should be more than enough

RICSPEED wrote:bar and vernier (digital best really) should be more than enough

Tried that, see above I found it varied everytime I took a measurement...

yeah I know what you mean though without the bar being machined dead flat and parallel you just have to make the best of it

RICSPEED wrote:yeah I know what you mean though without the bar being machined dead flat and parallel you just have to make the best of it

Hmmm I'm gonna have to find a better solution... Cheers Ric

You can get ground flat bar off eBay relatively cheaply as you really only need an off cut 200mm or so.

I use a metal ruler stood on it's edge on both gasket faces then measure down from the top edge of the ruler to sprocket with digital verniers, works for me.

blue wrote:I use a metal ruler stood on it's edge on both gasket faces then measure down from the top edge of the ruler to sprocket with digital verniers, works for me.

That's the method I use

But thinking out loud , what about a a length of square bar laid ( or fixed to chain case studs ) across the gasket face with a taped hole above the sprocket - then screw in a stud/bolt until it touches the sprocket - lock off with a nut and you can measure as many times as you need to be sure

Just an idea needs a bit of refinement

Interesting, what tolerances are you working to with these methods?

Interesting ! .. What sort of lambretta engine are you building ?? .. i use a 12" steel rule & a 150mm. steel rule with a steady ish .. hand . maybe youre thinking too much soulsurfer ?