Question about 1992 Mitsubishi 3000GT

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New timing belt keeps getting loose when it cools down

1992 mitsubishi 3000gt,dohc,3.0L,timing belt broke,bent intake valves in two cyl. on front bank.thats how i bought it,replaced valves,reinstalled new head gasket,installed new timing belt kit with,water pump tensioner pulleys,automatic tensioner,and tool to set belt tension torx,started the car put it in timing mode,timed it to 5 degrees btc,sounded really nice,only ran it for about 5 minuites a few times.after it cools down the belt seem to get slack in it around the water pump,looks like it might jump time if it were started agian,repeated installation procedure agian,still doing the same thing,anybody have any ideas??did i get a defective auto tensioner??please help!

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  • todd gentile
    todd gentile Jun 06, 2009

    pippall,thanks for the post, i tried to return it but it turns out that in the fine print the tensioner is not under any warranty,so i had too pay for it agian,ouch!!,just got it in the mail today.ill let you know what happens,putting it in tomorrow.thanks! todd0708

  • todd gentile
    todd gentile Jul 07, 2009

    it was a defective hydraulic tensioner,replaced it and everything was cool

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  • Master
  • 1,486 Answers

Yes you can get defective auto tenioners.Chage ASAP.

Posted on May 30, 2009

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