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ORIGINAL: TheEngineer

Pretty simple. Here is the step by step from VFAQ
[ul]Remove the lifter
[ul][*]Pull the lifter out of the head by hand (pliers shown for clarity)[*]Remove all oil from the new lifter - this also applies if you are cleaning and reusing the old lifters. Get a large paperclip and straighten it out. Insert it into the top hole of the lifter until it bottoms, then press on it lightly - you can now easily collapse the lifter with the paperclip still in place. If cleaning and reusing the old lifters:
[ol][*]Submerge the lifter in cleaning solution (brakeparts cleaner, carb cleaner, acetone). Soak it for as long as you can, preferably up to a day or more.[*]Insert the paperclip, depress the internal valve, and pump the lifter up and down until it moves freely and the fluid coming out is clean.[*]If you have the time, repeat the above at least one more time.[*]Remove the lifter, turn it upside down, depress the paperclip, and pump the lifter until no more cleaning fluid comes out. Set the lifter aside to dry for a while. [/ol][*]Submerge the lifter in oil, depress the paperclip, and pump the lifter to fill it with oil.[*]Remove the lifter, turn it upside down, depress the paperclip, and pump the lifter until no more oil comes out. This will leave a thin film of oil for startup.[*]The lifters will clatter for a few minutes at startup when empty like this, but that is better than having them too full of oil and bending some valves.[*]Drop the lifter back in the bore - it doesn't really matter how you line up the oiling holes in the lifter, they rotate under normal use. [/ul][/ul]

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