Well not my bike today, but Cliff (MadUncle) plied me with alcohol to clean up his CB450 "Black Bomber" cylinders so he could order some replacement pistons. His original pistons were rusted into the cylinders so he had to smack them out, and the cylinders were pretty awful.
Because they were so bad, I chucked the sleeves into my lathe and used my 3 stone hone and lots of Kerosene to remove the bulk of the rust.
It was working, but was pretty slow going, so I swapped the 3 stone hone for my super-duper Ammco 4 stone hone.
It was better, but not great.
I heated up the cyclinder block so as to pop the sleeves back in, before mounting it in my boring bar.
It took me awhile to set it up in the machine, it's really important that when you start cutting metal, the block is sitting perfectly square,
After it's first 5 thou pass the bore was looking better, but still not good enough, so it'll need at least one more pass before all the low spots are gone.
Sadly i'd promised to take my wife to see a movie ("The Lady in Black", which was pretty good actually) so I ran out of time, and I'm away all this week working at a Navy base on the Mornington Peninsula, but I'll hook in next weekend and get this done, hopefully there'll be enough meat left after I've removed all the pitting so Cliff can still buy pistons to fit! Cheers, Terry.
