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Cam Timing Incorrect?

Discussion in 'PT Cruiser' started by JDK52, Feb 11, 2017.

  1. JDK52

    JDK52 New Member

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    I recently purchased a 2006 PT Turbo with 106K miles.

    Did the timing belt replacement last weekend as a maintenance.
    Was relieved that the car started....and thought all was well.
    Also replaced plugs and wires (Champion at 50 gap.)
    I have been working on other things, like the brakes and heater vent cable and did not drive the car yet. It is still up on the jackstands.

    I fear my cam timing may be off.
    Today, after letting it warm up I noticed that the engine starts to fall off after about 4000 rpm. The car is in neutral and this happens with a gentle application of throttle.
    Seems like the Turbo wastegate may be opening, as the engine is not under load. If the car was being actually driven - Might that make a difference?
    But it is not happy after 4000rpm.

    As the car is new to me, I had not previously reved the engine in neutral with it's original timing belt, but had driven it up to 5000 rpm and it was smooth.

    So - any thoughts? Can someone reassure me that the cam timing is the fault?
    Sure seems the motor should rev smoothly past 4000 rpm - turbo or not.
    Has anyone else experienced this relative to cam timing being incorrect?
    Thanks for anyones experience with this matter.
    Just a little worn out and disappointed tonight.
    Tomorrow is another day, and it looks like I will be revisiting that timing belt.
     
  2. JDK52

    JDK52 New Member

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    Just learned that there is a rev limiter that activates at around 4000 rpm in park.
    Seems that is what is happening in this case.
    What a relief.

    So much I don't know!

    T
     
  3. dana44

    Ad-Free Member

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    Yeah, I was just going to save, without a load, good chance the rev limiter is kicking in. When you did the timing belt, you should have set the timing marks then rotated the engine two or three complete rotations and then double checked the marks anyway, but it is probably good if you didn't from the sounds of it.
     
  4. pt006

    pt006 Active Member

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    If it idles smoothly and the engine light stays off, it sounds promising.
     
  5. JDK52

    JDK52 New Member

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    Put the wheels and other bits back on.
    Went for a ride.

    Runs just fine.
    Pulls smoothly to the shift points. What a relief.

    Good for another 100k miles !
     
    pt006 and page2171 like this.
  6. chuzz

    chuzz Well-Known Member

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    Are you sure about the gap on your plugs being .050? That seems too large to me, as I gap my 03 GT turbo plugs at .042. Maybe the n/a engine takes a wider gap. I don't know for sure, but it just seems like a large gap to me.
     
  7. pt006

    pt006 Active Member

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    Congratulations !! You should be proud of yourself.
     

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