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Compression Test Pressures

I'm confused about the minimum "on-spec" compression pressure for a UK spec TT. PAge EF & EC-70 of my UK workshop manual say 142 psi whereas postings elsewhere say 127 psi.

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    The higher pressure is for NA.

     

    Compression pressure:

    Standard: 12,85 bar (186 psi) for NA ; 11,79 bar (171 psi) for TT

    Minimum: 9,81 bar (142 psi) for NA ; 8,83 bar (128 psi) for TT

    Maximum difference between cylinders: 0,98 bar (14 psi)

     

    Maciej

     

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