Sometimes it pays to stick to stock parts........11,000 miles and this happens. I re-installed it after doing the PW3 cam in Feb and as far as I was concerned it went back the way it came out. 700 miles since the installation and something came adrift, broke the circlip, bent the support arm and left the brass block to be chewed by the cam chain. I must have put it back incorrectly but everything lined up as it should. Have flushed out the cases and tank, stripped the pump and cut open the filter which seems to have caught all the brass since there is nothing on the exit side to tank. Here's hoping nothing got thru to the crank, oh well. Still waiting to hear from Andover on the broken tappet adjuster and was wondering if the resulting 1/10" clearance gave the RMA a real hammering? Unlikely?