Re: more thoughts about needle bearings
Prep is important . The assembly grease that holds the needles in place during assembly , needs to be removed before they are run . I use clean mineral spirits and blow dry . It is important not to allow the rollers to spin when blow drying . I have seen some Technicians spin those parts up to untold rpm while trying to dry them . That is a good way to skid and fail the rollers . After drying , I soak the lifters in clean break-in oil , and spin the wheels by hand to try and drive the oil into the rollers . Seems to work , haven't had a failure yet !
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