Question about 1995 Subaru Legacy

2 Answers

The crank shaft pulley came loose. The inside diameter is worn over size and the key way is mangled. The key way on the crank shaft gear that runs the timing belt/crank shaft pulley is also scored and mangled. Does the crank shaft gear that runs the timing belt/crank shaft pulley come off? Also, how do I adjust the tension on the timing belt?

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  • stik1 Nov 16, 2009

    How do I adjust the tension on the timing belt on the 95 Subaru legacy wagon?

  • stik1 Nov 16, 2009

    Thanks a lot for the info! It is a great help.

    Ted Andersen

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2 Answers

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  • Master
  • 770 Answers

You will need to replace the pulley to insure the pulley will run true. Depending on how bad the crank itself is damaged will determine if you will have to do a total rebuild and replace your crank. And yes, the gear does come off. There is a tensioner that keeps your timing belt tight. If you only need to replace the pulley and key way, the part # is W0133-1618586. This will be in your best interest if you can get away with only replacing the pulley. I have attached a pic of the camshaft and belt and gear that may prove helpful, maybe not. there is also commentary from another thread on this particular repair. I hope you find this very helpful!

A. The front of every crankshaft has a slot cut into it called a key way. There are corresponding cuts in the crankshaft timing gear and harmonic balancer. A key is used to align the key ways of all three parts to place, and keep, all three components locked together.
The crank shaft pulley came - 98716740.gif It is a cheap and effective way to insure that the balancer and timing gear keep their proper positions in relation to the crankshaft. In the event this key way is damaged, the crankshaft must be replaced.
78897729.gif If you decide to replace the crankshaft, keep in mind that you will end up doing a complete engine rebuild. Other options are buying a used engine or buying a remanufactured engine.

Posted on Nov 16, 2009

  • Hal Hallman Nov 16, 2009



    1. Here are instructions for replacing the timing belt and adjusting the tensioner.





    1. Remove the accessory drive belts and the crankshaft pulley bolt and the pulley. Remove the timing-belt covers and sealing gaskets. Turn the crankshaft until the timing mark on the crankshaft sprocket lines up with the mark on the block, which is straight up. Do the same with both camshafts; both marks should be straight up.


    2. Step 2
      Loosen the auto tensioner bolts. Remove the three guide pulleys, the timing belt and the tensioner pulley and spacer. Remove the auto tensioner bolts and the tensioner.


    3. Step 3
      Insert the auto tensioner in a vise and carefully and slowly compress the push rod back into the body of the tensioner. It should take about 5 minutes, so that it does not blow out the seal by depressing it too fast. Once the rod is level with the holes in the body, insert a cotter pin through the holes in the body and through the hole in the rod to keep it from extending until installed.


    4. Step 4
      Install the auto tensioner and push it fully to the right, as viewed from the front of the engine, and hand-tighten the bolts to keep it out of the way. Install the tensioner pulley and spacer and torque the bolt to 32 foot-pounds of torque.


    5. Step 5
      Install the belt guide pulley on the left side top of the belt, as seen from the front of the engine, and torque to 32 foot-pounds of torque. Make sure all timing marks are aligned. Install the timing belt starting at the crankshaft; working counterclockwise, make sure the belt is tight on the non-tensioned side.


    6. Step 6
      Align the white match marks on the belt to the timing marks on the sprockets, with the arrow pointing in the direction of rotation. Install the two bottom belt guides and torque to 32 foot-pounds of torque.


    7. Step 7
      Loosen the tensioner bolts and use a screwdriver to pry the auto tensioner fully to the left, toward the tensioner pulley, and torque the bolts to 20 foot-pounds of torque. Remove the cotter pin and allow the tensioner to apply tension to the belt.


    8. Step 8
      Torque the crankshaft bolt to 76 foot-pounds of torque.

  • Hal Hallman Nov 16, 2009

    Use care in compressing this tensioner!





    There's also a tensioner ~$190 that is often replaced. If it's not replaced the mechanic has to compress the old one and insert a pin in preparation to re-install it. If the compression is done improperly, he'll damage the part.

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  • Subaru Master
  • 6,826 Answers

Yes it is removalble ,and the tension on the tensioner with out the specail tool,is hard to say,push the tensioner into the belt pretty firm,but not to much,or it will wine,the replacement gears are available threw the auto parts,but not the hydraulic part of it,crankshaft wear will be critical,to see that the new harmonic balance fits snug,and correct,keyway replacement should not be a problem,I just hope you don`t need a new crankshaft,I hope this was helpful,if so,please let us know,thank you.

Posted on Nov 13, 2009

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Nov 16, 2009

    The tensioner has to be retracted all the way back in,then find a pin to put in the pilot hole,this will hold the tensioner,when ready,and the timing belt is lined up.pull the pin,this will release the tensioner,and it sets itself.

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Nov 16, 2009

    It is a automatic tensioner,retract the tensioner,and there is a pilot hole to put a pin into,it will hold the tensioner back until you are ready to pull the pin,and the tensioner will automaticaly,set the pressure needed.

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