Valve Clearance Adjustment
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This is a discussion on Valve Clearance Adjustment within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Hey guys just had a question about a valve job. I have an 04 wrx wagon and I just passed ...

  1. #1
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    Valve Clearance Adjustment

    Hey guys just had a question about a valve job. I have an 04 wrx wagon and I just passed 30K. I am in a car club and do 6-10 track days a year. I am religious about oil (Mobil1 5W-30), tranny(Redline), diff(Redline), coolant, brake fluid(ATE Racing Blue), etc so the car is in good shape. I'm about to change the plugs because I had a guy in my car club recommend changing a little more often based on the driving we do. The engine sounds a little noisier lately and I think that maybe the valve train is getting a little loud. It's not anything extreme by any means but being completely anal retentive about my car I thought I would ask if any of you guys have experienced similar stuff with your cars. Have any of you had valve jobs? With the kind of driving I do does it seem likely I need one?
    '04 WRX Wagon
    Crucial Racing Springs
    Progress Front and Rear Sway Bars
    Helix Endlinks Front and Rear
    SSR Competitions

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  3. #2
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    I have the same car, same mileage and the same situation. Starting from cold my wagon sounds like a diesel. Can anyone provide help for Dave and I?

    Rob

  4. #3
    Registered User Robert46123's Avatar
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    According to the maintenance schedule the valves don't need inspected until 105,000 miles. I don't think driving it hard occasionaly is going to change that by much; otherwise, Subaru would specify it. I suspect what you're hearing is piston slap which is pretty common on the 2.0 liter motor. I had it on my '02, and it was most noticable in the mornings.
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  5. #4
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    same here and once it warms up it is fine, just a quirk of the boxer motor.

  6. #5
    Registered User Jje121's Avatar
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    Quote Originally Posted by Maccgyver View Post
    same here and once it warms up it is fine, just a quirk of the boxer motor.
    The longer my car sits the worse it is. I usally don't drive my car on the weekend. It is pretty bad on monday morning when I leave for work.
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    Administrator TheJ's Avatar
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    Quote Originally Posted by Robert46123 View Post
    According to the maintenance schedule the valves don't need inspected until 105,000 miles. I don't think driving it hard occasionaly is going to change that by much; otherwise, Subaru would specify it. I suspect what you're hearing is piston slap which is pretty common on the 2.0 liter motor. I had it on my '02, and it was most noticable in the mornings.
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