Yea, Not sure if you can get it in your area Berkybile 2+2 instant gum cutter. Spray it down in the pipe cover both ends and swoosh it around. This will get most of the wet oil out. If you can't get Gum Cutter then just cheap oven cleaner, spray itin and let it work for about 15-20 min. repet if there is alot of build up. try not to get it on the outside of the pipe. Then for the head part of the pipe you can get round wire brushes that attach to a drill motor, try and find one the same diameter as your pipe and run it in and out with the drill till the build up is gone