"Sleeving" should be shot at dawn for suggesting that. 
Yep, tis mine up there lol. I've been shot at dawn 'that often' they've run outa bullets. Had another cylinder that suffered the same fate early on, not 45 years later, & had--had an LA sleeve fitted by the local machine shop. [think it was my bosses original; GYT cylinder]. The sleeve had a bridged exhaust port & in my wisdom in the late "70's i cut the bridge out which made a huge exhaust port. Saw lots of use then rested till the advent of vmx then carried on till the piston let go above the ring on the exhaust side [just broke]. New piston kit & it carried on till i sold it recently. That sleeve--the rear most transfers were cut so the bottom was a lot lower than original [lozza?--why would that be]. Never did get matched up. Exhaust [sleeve] port was wider than the cylinder outlet original. Think that got matched up. Was no support behind the bridge [that i butchered] but was quite thick. The liner was made out of what seemed very hard material & lasted well. was on .25 which is how i received it in the "70's & was still on that size or is still on it now. Was using DT1MX piston kits being oversize. Cheers.
ps, Lozza will love this--this cylinder, back in the day of bloody expensive pistons, the machine shop used to micropeine [spelling] the piston to bring it up tight & they even gnurled [more spelling] them for a time. Everything worked in the short term. Happy new year [what's bloody happy about it!!].
