Do I have a bent valve?

Discussion in 'Subaru Forester' started by twj815, Oct 2, 2022.

  1. twj815


    Dec 1, 2021
    Likes Received:
    The timing belt tensioner broke on my 2005 Forester 2.5 SOHC non turbo. Started getting a P0301 code.

    I replaced the tensioner and put it back together. Still getting P0301 code. There is no spark to number 1 plug (verified with a timing light) and no compression on the number 1 cylinder (verified with a compression tester.) All other cylinders have good spark and compression. I have replaced the coil, wires and plugs. Is it normal for the computer to prevent a plug from getting spark if there is zero compression?

    Are there any other possibilities other than a bent valve on number 1? I have removed the head as seen below. Number 1 is on the right. Is there a way to see a bent valve without taking the head apart? The car has about 160,000 mile on it.

    Thanks for any advice.
    twj815, Oct 2, 2022
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