HOME and how to join › Forum › Open Area › General Scott topics › Piston rings
I have some Scott piston rings (596 longstroke) that are no longer in their packets or boxes. How can I tell whether they are standard bore or are
10, 20, 30, 40 thou etc, over size?
I suppose the easiest way would be to offer them into a cylinder of known dimensions – allowing of course for the appropriate gap.
Other than that, if you trot along to your nearest friendly piston stockist, they will have a piston diameter measuring device (usually on the counter)which will also tell you the size of the rings.
Whilst rabbiting on a note of caution.
Do NOT use filed-down oversize rings, as the radial pressure exerted on thecylinder wall will not be uniform, so they won’t seal properly.
Listen to Stanley – you know it makes sense.
I know “it” makes sense Stan, but do you?!!
By the way, have you finished with my Brum crash bar? If so, can you bring it to the AGM please.