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Timing? Timing chain? Valve? Bad motor?

Discussion in '1st Gen. Tacomas' started by maza mike, Mar 24, 2013.

  1. Mar 24, 2013 at 5:46 PM
    #1
    maza mike

    maza mike [OP] Member

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  2. Mar 24, 2013 at 5:47 PM
    #2
    maza mike

    maza mike [OP] Member

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    This is not my vehicle, but mine is a 2.7 3RZ
     
  3. Mar 24, 2013 at 8:47 PM
    #3
    adower

    adower Well-Known Member

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    My old ranger had that noise. Ticking that would go up or down with the RPM. Turned out to be a valve. :(
     
  4. Mar 24, 2013 at 9:54 PM
    #4
    joeer77

    joeer77 Active Member

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    How many miles on engine? I had a connecting rod bearing wear out on a rebuilt 22RE engine and it sounded similar. When the rod bearing wears, the piston has more room to move up and hits the valves on the up stroke. The engine lasted another 300 miles after the clacking started. Had to replace motor.
     
  5. Mar 24, 2013 at 9:57 PM
    #5
    maxamillion2345

    maxamillion2345 Go home if you don't like guns liquor and whores.

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    Kind of sounds like a connecting rod or wrist pin bearing. But sounds like it's misfiring or the timing is crap. Just my .02


    You can kill spark to cylinders and see what happens. If all the sudden the noise goes away or it doesn't drop in RPMS either that cylinder isn't firing or you've found the cylinder that has the noise problem like a rod knock etc... if it's valves it shouldn't change but you should drop in RPMs.
     
    Last edited: Mar 24, 2013
  6. Mar 24, 2013 at 10:08 PM
    #6
    dually

    dually Low and slow

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    Not as many as the 98..
    Is the timing chain tensioner functional? How did the guides look?
     
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