lcrken wrote:The Norton twin cylinder blocks have been a one-piece iron casting since the original design of the 500 cc Model 7 Dominator introduced in 1948. That has been the design for all the descendents of that engine, including 600 cc, 650 cc, 750 cc, and 850 cc variants. I don't know where you got the idea that they had liners, Bernhard, bit it's completely wrong. I have cut a number of them apart, as well as boring the 850s out for 920 kit sleeves, and they are definitely all one piece. You can find the same info in the Norton history books, like Roy Bacon et. al., but I'm basing my statements on personal examination. Ken
Original question refers to ATLAS
Atlas Barrel - rebore to +0.060, hone or ditch?
by Bernhard » Fri Apr 07, 2017 6:03 am
Bore looks too far gone with all that rust, the normal method would be to have the rusted sleeve pressed out and another pressed into the barrel –I have had this done in the past HTH
Since I have had this done in the past, when the liner broke at the top and dropped down in the barrel locking up the crankshaft, you are 100% wrong, as I was referring to the Atlas 750.
There are spun cast iron liners available for the 650, 750 (Both spigoted and non spigot)
You are not paying attention there