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New to me YJ with 118k...anything to be aware of?

Discussion in 'Wrangler YJ (1986-1995)' started by JAM78155, Jul 21, 2020.

  1. Jul 21, 2020 at 9:14 AM

    JAM78155 [OP] New Member

    Jul 21, 2020
    Just bought a 90 YJ in good shape with many upgrades. The engine has 118000. Seller mentioned these engines are noisy and that is common. Some clacking. Jeep runs great. Is this common and if so, anything to worry about?
  2. Jul 21, 2020 at 3:32 PM
    Jim Beam

    Jim Beam Well-Known Member

    Feb 11, 2019
    First Name:
    1986 CJ7
    Fuel Injection, Dana 44s, T18, 4.10s w/lockers
    118k is not that bad for an engine with a good history. If you have this "Clacking" it could be a stuck hydraulic lifter. There are numerous additives that you can use in your oil that can clean it out. I like Rislone as it has solved previous issues. I would also recommend Shell Rotella oil in the 15w-40 as it has great detergent qualities. Some say it is for diesel engines only, it is not. I have been using it for years and it keeps my engines quite clean. The slightly heavier oil works great for the older 258 and will increase the oil pressure. this can be noted best with a mechanical oil gauge.
    Bob, LYFZGOOD and aggrex like this.
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