You can but every 0.5mm removed is 0.5mm less air gap between the fins, and airflow is critical for cooling at the top of the cylinders, not so much at the bottom. But my point was the difficulty in getting the cylinders an equal length and square with sandpaper and a piece of glass.
Just sharing . It wasn't tricky. Verniered all sides as I went. I might of got lucky. Have play on an old cylinder. A machine shop is your best bet, but these days they're slim on the ground.
you have no chance wet and drying 0.5 mm equally off 4 cylinders ... a cheap vernier or digital calliper is not accurate enough by a country mile .. find someone with a lathe or mill .... ( wipes tea of face )
Wet and dry for 0.5 mm What grit were you using? Must of taken hours n hours. Must say I was considering binning these n buying some Mahle replacement ones, but if it fairly easy to take off 0.5 mm at home I give it a go. J Sent from my iPhone using Tapatalk
400 grit. Spirt level the table/glass. Whilst verniers aren't super accurate they fair better on repeatability, which is what your after. Trail taking 0.2mm off to start with. Hell yes it took a while, could have used courser grit - it was a wet day.
So I remeasured everything (several times) and made an improved deck height tool. Re cc’ d the heads. I cc’d using light engine oil rather than water to stop it slipping everywhere and clamped the disc to the head tightly. The head is a definite 50cc. The deck height was the same and looking closely at the quality of the barrels decided to bin them and bought some brand new Autolinea p and cs. They deck at 1.50. CR at 7.6 sounds about right to me so happy days. Cheers guys for your help n input John Sent from my iPhone using Tapatal Sent from my iPhone using Tapatalk
