Reply To: Power Head Compression

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April 28, 2019 at 9:29 pm #174483
Seahawk
Participant

    US Member

    I agree it does sound spring test. I am reading it correctly, the specification is listed under Powerhead Data > Piston Rings > Compression (fully compressed) 8-12 lbs

    You may be correct, however another engine list which has same compression relief part has a lower value. It state a valve of 6-9 lbs. How can the same part of different values when fully compressed?