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4 timing marks?

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Old 09-10-02, 01:06 AM
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4 timing marks?
The previous owner of my 2nd gen. T2 put on underdrive pulleys. When I use a timing light 4 marks in a row show up. What is this?
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Old 09-10-02, 07:51 PM
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10 degrees atdc, 0 degrees (tdc), 10 degrees btdc, 20 degrees btdc in that order from left to right.
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Old 09-10-02, 08:09 PM
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Thanks! What degree is ideal?
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