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hydraulic lifters
- Thread starter philman
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Yes - Immerse them in a pan of oil & work their pistons to pump oil into them & expel air.
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When preloading lifters, I prefer using a lighter grade oil, such as 5 or 10 weight. It's easier to pump into the lifter as some have smaller holes than others. The oil will quickly disperse with the break in oil on first run up.
Speaking of lifters, I had a Ford Ranger pickup once and a bad feature, if you wish to call it that, of the Ford Ranger 4 cyl, was that the holes in the Hyd. lifters were so small, that the use of 30 weight oil would cause them to pump up while driving above 55 MPH and shut the engine down. After setting for 30 seconds, the engine would restart. Couldn't use over 20 weight oil in it. Only stuck 30W in it as we used 30W SHD diesel oil in everything. It was the only vehicle that complained!
Speaking of lifters, I had a Ford Ranger pickup once and a bad feature, if you wish to call it that, of the Ford Ranger 4 cyl, was that the holes in the Hyd. lifters were so small, that the use of 30 weight oil would cause them to pump up while driving above 55 MPH and shut the engine down. After setting for 30 seconds, the engine would restart. Couldn't use over 20 weight oil in it. Only stuck 30W in it as we used 30W SHD diesel oil in everything. It was the only vehicle that complained!