Strange Pinging?

x247nsx247xx247nsx247x Band Wagon
in Engine & Drivetrain
I've recently adjusted the timing on my 87 rt4wd (was about 20 degrees behind) and i noticed that now whenever i push the pedal down a decent amount, a pinging noise is heard. Would this be fixed with a valve adjustment? I'd love to get some feedback. Thanks

Comments

  • bam-bambam-bam Council Member
    I would check static timing. If it was that far retarded and running ok, but pings when you adjust to apparent spec, the belt may be off a tooth or two.
  • driftin90driftin90 Senior Wagonist
    bring timing back a little. or start running premium. your issue is detonation.
  • 1sleeperwagon1sleeperwagon Wagonist
    Just a question what was the reason for the timing issue? And I would refure to the manual for the spec. I think you need to pull the vacuum lines off and plug them, and then adjust timing according to the book spec. If you have any questions just ask. Hope this helps :)
  • x247nsx247xx247nsx247x Band Wagon
    Thanks. Is there any other way to stop this pinging without retarding timing or running premium? Spark plugs perhaps? My appoligies. I'm a bit new at this.
  • 1sleeperwagon1sleeperwagon Wagonist
    You can try it. But I have never got that worked out for me
  • AintGotNoSolAintGotNoSol Wagonist
    Did you adjust the Cam timing or the Ignition Timing? Or both.

    Check and adjust cam timing first, then check and adjust ignition timing. One may have been adjusted out of whack to compensate for the other.
  • x247nsx247xx247nsx247x Band Wagon
    I only adjusted ignition. Thanks for the advice.
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