I posted a while ago about my ace leaking. I found the leak, the rear pipes at the valve block. The seals have gone. I have new seals to go in.All my pipes look in good condition, so hopefully new seals will fix it. My question is this: when the bolts are taken off & the plate slides away from the block is there rearward movement in the pipes to take them out of the valve block, or does the valve block have to be unbolted from the chassis to give room to remove the pipes. Please, advice from anyone whose removed the pipes would be appreciated. Thank you.