Brilliant that Mac well done, just to add Lance, dont blather the spring in moly grease when you put it back together, get some moly PASTE, and just a light covering is all thats needed, if you can get a tin of dri slide spray about a fiver off fleabay, and some silicon oil, de grease everything, moly paste on the spring, dri slide on the piston, and just a light dab of silicon oil on the piston seal, it will shoot smoother, and I guarantee it wont diesel any more, good luck mate, as Mac said, any probs give us a shout.