Question about 1991 Toyota 4Runner

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1990 V6 petrol auto Hulux with 3VZE engine - changed head gaskets, reconnected everything and will start but only rev to 300 -350 rpm. When pumping accelerator no change. Will run like this for 5 minutes then stop. Checked computer and no error code indicated. Checked fuel and pressure at all connections.

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Double check the timing belt installation. You got the cam timing wrong. These engines are pretty much a pain to set up with regards to cam timing.

  • Disconnect battery negative
  • Remove bottom engine cover
  • Drain coolant.
  • Remove radiator. - Remove hoses. Remove oil cooler pipes. Remove fan shrouds
  • Remove power steering and A/C belts
  • Remove coolking fan
  • Remove alternator belt
  • Remove the water outlet and studs and unclip HT cord clamps
  • Remove the timing belt cover.
  • Line up the crank pulley groove to the 0 degree mark
  • Check that the cam pulley marks line up with the corresponding marks on the rear timing cover(Dont bother with the marks on the belt). If the marks on the pulley are at the bottom rotate the crank once(360 degrees) and check again that they line up with the cover.

Posted on Sep 09, 2010


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