Received new rings (standard) today from Autovaux, everthing ok.
Honed the block and measured the barrel with the piston ring in the bore, all well in tolerance. Went on to fit rings on piston
Oil contol ring first bottom ring fiddly but ok. Then the problem, second ring (middle) has a stepped face ?. Consult the trusted Haynes bible. First manual Astra no nemtion what so ever of rings?????. Second manual Cav explained that the second ring could be stepped or tapered and should be installed with the letters TOP facing uppermost.
OK look for letters (Problem) no letters on middle stepped ring. Does any one know which way the step should be? . Step facing down or up???