Engine Mounts – self tappers or proper bolts?

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    • 29 March 2020 at 18:03 #4852
      Jon Taylor
      Participant

      Hi all, I have a Pilot QB kit to put together over the coming months (work permitting – mad time to be working in online learning). The engine mount is one of those black plastic/nylon jobbies. I think i read somewhere that people drill a pilot hole and then use self tappers to fix to motor to the mount, is this safe? My instinct would be to use 3mm bolts, washers and lock nuts.
      ta
      Jon

    • 29 March 2020 at 18:41 #4853
      Ian Walker
      Participant

      After many years in engineering I would never use self tappers if I could use bolts.
      Regards Ian Walker.

    • 29 March 2020 at 19:40 #4854
      Ian Newton
      Keymaster

      Your instincts are correct! Don’t trust self tappers

    • 30 March 2020 at 07:48 #4855
      Paul Morris
      Participant

      What I do is drill and tap the engine mount and bolt the engine to the mount using the tapped holes and cap head bolts then put a nyloc nut on as an extra security measure.

    • 31 March 2020 at 18:47 #4857
      Jon Taylor
      Participant

      Thanks all, I’ll dig out my 3mm taps.

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