sand it with some 180 and see, they all look like that but its difficult to really see without cleaning it up
Considering that by the end of 1600 T1 production in 1979, some of the engines had a 215mm clutch, which is so big that the bolt holes in the surround had to be reduced to M7 from M8 to get enough metal to fit, thats a small clutch for a bus.. might be why it has suffered. (I had one of these . unpleasant surprise on a Sunday of a bank holiday weekend .. had to steal bolts from the rear brake drums to make up the required quantity of M7 bolts ) If it has scratches and gouges in the surface after a bit of sanding then it will not work as well until the clutch friction material wears to match it .. this is 50% of the clutch operating surface here, and every gouge represents a drop in friction. If you get it skimmed, dont forget to make sure that the same amount comes off the surround so that the whole clutch assembly drops down into the flywheel to maintain pressure - if you only do the surface of the flywheel, it will reduce the spring pressure on the clutch plates. If you are spending money, maybe a flywheel for a larger clutch might be a better spend, than paying for machining ..
Ok great, I'll get some sand paper on it and see how it comes up. Thanks for the pointers on the skimming.
That does look like the usual heat checking you get on the flywheel. Run the back of your fingernail across it, see if there's any scoring. If yes, might be worth having it skimmed (not that it would probably make much difference in Real Life).
