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Thread: head rebuild

  1. #1
    Active Member One Ring betterbaker's Avatar
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    Mar 09 2017
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    Nebo , N.C., USA

    head rebuild

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    I got a 02 Audi A4 1.8t quattro, I bought the car not running. The timing belt was broke so I decided to tear down and rebuild the head. I got it put back together and someone told me the valves had to be seated not real sure on how to do it or why seeing I bought everything new (valves, timing belt kit and head gasket kit). Does anyone have any advice on what to do or how it's done or does it even have to be done. I hope i not got in over my head with this.

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  2. #2
    Active Member One Ring
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    Jan 23 2017
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    Anchorage AK

    I bought an a4 for 1000 bucks, same scenario. I threw some valves in, new belt, new cam tensioner and all the gaskets that go along.

    Long story short if you didn't get any damage to seats you should be "okay".

    I am by all means an amateur so take this all lightly, but I am 30,000 miles later, about to do another belt change 🤗

    01 b5 a4 Quattro 1.8t

  3. #3
    Active Member One Ring betterbaker's Avatar
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    Mar 09 2017
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    Nebo , N.C., USA

    awesome that's what I'm hoping for

    betterbaker's galaxy s4

  4. #4
    Active Member One Ring
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    Feb 03 2015
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    312857
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    United States

    So seating the valves or lapping the valves is what you do with newly ground valves and cylinder heads to make them match perfectly. Essentially the lapping compound used to seat the valves is a paste with very fine grit in it that will make the valves match better. http://www.restore-an-old-car.com/ho...ap-valves.html

    I've never not done it when building engines, but I can't imagine it's going to cause you to burn a valve.

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