• F20A 's pistons' tops' dents ( for valves ) are too shallow

    From TE Cheah@21:1/5 to All on Thu Aug 12 04:09:34 2021
    : pistons will hit & bend valves when timing belt breaks. Best design is Koenigsegg's solenoid controlled valves ( on Youtube, called Free Valve ).

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    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From TE Cheah@21:1/5 to All on Mon Aug 23 23:16:03 2021
    16 valve *seals ( rubber ) are not silicone, hardened & leaked oil toward pistons, by 127580 km when timing belt broke, so oil consumption was high until * were replaced ( together with 2 exh valves ; hit & bent by a piston ).

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    * Origin: fsxNet Usenet Gateway (21:1/5)