Question about 1990 Subaru Legacy

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1990 subaru legacy 2.2 motor, Had to change timing belt & water pump, then after all togather, missing badly & no power, you can put the pedal to the floor & it only crawls. Timing is right on, this a distributorless ignition. Please help thanks jfritsch1980@yahoo.com

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  • 14 more comments 
  • Jennifer Fritsch
    Jennifer Fritsch Sep 29, 2008

    we bought it acouple days ago & on the way home the water pump froze & broke timing belt

  • Jennifer Fritsch
    Jennifer Fritsch Sep 29, 2008

    how would you figure out where exactly tdc is?

  • Jennifer Fritsch
    Jennifer Fritsch Sep 29, 2008

    exactly what was done, we took it back apart & it was correct

  • Jennifer Fritsch
    Jennifer Fritsch Sep 29, 2008

    Thats what we did, We turned it until piston came to top of compression on # 1 & started fom there twice, I have no idea what is going on. We just bought it & it had power on the way home & then it started missing & then the water pump & timing belt went, all we did was change the water pump & timing belt. We also had to clean the cat because when we took it to wash the engine on the way home The cat was trying to catch fire # 1 cat right off the motor. So we also cleaned that cat out. But that is it, now you can start it up & put into gear & floor it & it barely moves forward or reverse. & sounds absolutley horrible. Next step will have to be a nother motor.

  • Jennifer Fritsch
    Jennifer Fritsch Sep 29, 2008

    How many teeth should the belt have?

  • Jennifer Fritsch
    Jennifer Fritsch Sep 30, 2008

    can you do that with the belt off

  • Jennifer Fritsch
    Jennifer Fritsch Sep 30, 2008

    it is not an interference engine, what what i was told & the chiltons manual

  • Jennifer Fritsch
    Jennifer Fritsch Sep 30, 2008

    how can i get tdc compression stroke with the belt off?

  • Jennifer Fritsch
    Jennifer Fritsch Sep 30, 2008

    thats great but, how can we find tdc, the belt was off & I dont know where is was positioned when it broke, we lined up all the notches & thought we found tdc by using a screw driver & feeling for pressure on # 1 CYL, but no such luck



    so, how do i find tdc cpmression stroke since the belt is off?

  • Jennifer Fritsch
    Jennifer Fritsch Sep 30, 2008

    so line up the 3 notches on the pulleys & line up timing belt marks to notches

  • Jennifer Fritsch
    Jennifer Fritsch Sep 30, 2008

    did all this twice, saturday & sunday. NOTHING, ran horrible & cat caught on fire, dont even have enough power to back out of driveway

  • Jennifer Fritsch
    Jennifer Fritsch Sep 30, 2008

    so how do you check the ignition timing?

  • Jennifer Fritsch
    Jennifer Fritsch Sep 30, 2008

    so with no distibutor, how do you adjust the ignition timing?

  • Jennifer Fritsch
    Jennifer Fritsch Oct 01, 2008

    your advise is helpfull, I will rate it but my problem is not fixed

  • Jennifer Fritsch
    Jennifer Fritsch Oct 02, 2008

    we are getting it done this weekend will keep you updated

  • Anonymous Mar 27, 2014

    Low speed miss

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Legacy engine is the 2.2 liter single overhead cam engine. In fact, this was the only Legacy engine from its introduction in 1990 until the 2.5 liter engine came along several years later. Unlike the 2.5, the 2.2 engine is not an interference engine. If the belt breaks or jumps timing, the engine probably will not sustain any internal damage.

Posted on Sep 30, 2008

  • 9 more comments 
  • paul erickson
    paul erickson Sep 30, 2008

    i would go back and check the timing
    once the timing is right you can do further testing or test drive.
    good luck paul


  • paul erickson
    paul erickson Sep 30, 2008

    i will give you a great web site to look over and will give you better info than your chiltons.

    Truth about Subaru 2.2

    hope you like this site.
    we use these engines in dune buggies and have great luck with them
    feel free to contact me for any other info you might need
    later
    paul




  • paul erickson
    paul erickson Sep 30, 2008
  • paul erickson
    paul erickson Sep 30, 2008

    that is realy easy
    because the belt is off you only have to pull #1 spark plug and stick some thing in the plug hole had turn the engine over by hand till you feel the piston come to the top.
    and without the belt on there isnt a compression stroke.
    later paul


  • paul erickson
    paul erickson Sep 30, 2008

    yep and to double check it you count the teeth between the marks to the crank.
    did you see that on the web site?
    let me know what you find
    paul


  • paul erickson
    paul erickson Sep 30, 2008

    did you check the ign timing after the you set the cam timing
    it sounds like your timing is retarded and need to advanced.
    this would explain the cat getting so hot.
    paul


  • paul erickson
    paul erickson Sep 30, 2008

    with a timing light with it running

  • paul erickson
    paul erickson Sep 30, 2008

    oops
    1990 Legacy has no distributor, but twin-coil ignition, fired 2 cylinders at a
    time. When one cylinder is on Power stroke, the other one on that same coil is
    between the Exhaust and Intake strokes, so the spark is wasted and does no harm.
    A stall at speed, possible accompany by backfire through the intake, is usually
    ignition trouble, often defective cam and/or crank sensors. Presuming your
    engine will restart and run OK once it cools down, this means the engine itself
    is OK (you have not jumped a timing belt, for example). When cold engine, if you
    have good power, this means the fuel system is OK, and it is ignition. Coils are
    firing at the wrong time, so backfires. Hope you are using the correct
    resistor-type spark plugs for your engine, or you will get influx-firing.


  • paul erickson
    paul erickson Sep 30, 2008

    you better do a compression check on all cyls next

  • paul erickson
    paul erickson Oct 01, 2008

    could you please rate my advice thanks

  • paul erickson
    paul erickson Oct 01, 2008

    did you get a compression test done
    and if so what was the figures ?


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  • 111 Answers

It has engine damage most likely due to the broke timing belt its a interference engine and probably bend valves

Posted on Sep 30, 2008

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