How to adjust rocker arms on 4.0
how do i adjust valves
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Betty Ayers your 4.0 Ranger has hydraulic roller cam followers (lifters) and you do not adjust hydraulic lifters. If you have valve noise etc it is possible that you have some pitted or worn push rods. If you let us know what makes you think you have to adjust your valves, we could possibly help you further.
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4.0 was bad for lifters going solid. The lifter stops taking oil it deflates and stays solid causing push-rods to ring. this is usually followed by a failure of the timing chain
