Firstly, I changed my rear brake shoes and skimmed my rear drums and that was all good.
But I still had the peddle going to the floor even though I had bleed the brakes but it would only go to the floor if it was slammed so obviously it was bi-passing so off with the master cylinder in with the new seals back together it went with seals around the right way and all perfect and bleed up. Off down the road I went and oh these brakes are awesome. Went driving for a wee bit longer down the road behind the temple and ooopppphh

Now the thing is it was working fine before the cylinder came off it was just bi passing and all I did was change the seals in the master cylinder put it all back together right ( even took it apart a second time to check) The bore isn't pitted. What else could be the cause of this? Any ideas? No adjustments were made to anything when I put it back on, then after we adjusted for more clearance.
Any help would be appreaciated.
Thanks,
DAN