I recently tore down my L67 for a reseal and to freshen everything up in general along with doing some mods along the way. One thing I did was port my blower and make a block off plate for the silencers, then JB welded it into place. After cleaning all the aluminum powder out of the case I realized I had also cleaned away most all of the grease on the needle bearings. What kind of grease is used on these? I have done some searching and have been unable to come up with anything. Thanks for any input!