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  • stavid
    Rank 5 Registered User
    • Feb 2011
    • 48

    Mystery piston

    hi all, i work in a converted wartime hangar and recently a workmate lifted a metal floor plate and found the top half of a piston. ever the romantic id love to think its from one of the aircraft based there during the war. it is quite badly corroded, but after a quick wire brush, some numbers and letters are visible on top of the piston. was wondering if anyone knew if there are any ways to try identify said piece? best regards. s.
  • Dr Strangelove
    Doktor Merkwrdigliebe
    • May 2008
    • 1384

    #2
    A picture of said piston & numbers would be helpful.....
    Sometimes it's better to be a bumblebee than it is to be Professor Heinkel.

    Comment

    • Creaking Door
      Rank 5 Registered User
      • Sep 2006
      • 9873

      #3
      As has been said a photograph would be best but failing that:

      - diameter of piston crown?

      - description of crown: flat, domed or concave?

      - description of underside of crown: smooth, ribbed (insert condom joke here) or other features?
      WA$.

      Comment

      • stavid
        Rank 5 Registered User
        • Feb 2011
        • 48

        #4
        Originally posted by Dr Strangelove View Post
        A picture of said piston & numbers would be helpful.....
        will endeavour to come up with both picture and numbers asap. cheers. s.

        Comment

        • Lincoln 7
          Better than Rank 1 user
          • Jun 2010
          • 8403

          #5
          Sounds a very interesting find you have made. As everyone states, "A picture paints a thousand words"If anyone can I.D. it, given what is asked, then C.D. is the chap, he has I.Dd. several for me.
          Jim.
          Lincoln .7.
          There is no such thing as a problem, just a solution!!

          Comment

          • stavid
            Rank 5 Registered User
            • Feb 2011
            • 48

            #6
            Originally posted by Creaking Door View Post
            As has been said a photograph would be best but failing that:

            - diameter of piston crown?

            - description of crown: flat, domed or concave?

            - description of underside of crown: smooth, ribbed (insert condom joke here) or other features?
            will take few sizes with the old tape when back to work. pretty sure top of piston is flat but with concave dip with a nipple (insert joke) in it. something to do with combustion?. also, parts of piston rings are just gleaming. would these be white metal? hope photos to come are of help too. cheers . s.

            Comment

            • stavid
              Rank 5 Registered User
              • Feb 2011
              • 48

              #7
              Originally posted by Lincoln 7 View Post
              Sounds a very interesting find you have made. As everyone states, "A picture paints a thousand words"If anyone can I.D. it, given what is asked, then C.D. is the chap, he has I.Dd. several for me.
              Jim.
              Lincoln .7.
              many thanks for that. just hope its not from a tractor lol.

              Comment

              • Dr Strangelove
                Doktor Merkwrdigliebe
                • May 2008
                • 1384

                #8
                Originally posted by stavid View Post
                pretty sure top of piston is flat but with concave dip with a nipple
                Sounds like a diesel piston...
                Sometimes it's better to be a bumblebee than it is to be Professor Heinkel.

                Comment

                • Creaking Door
                  Rank 5 Registered User
                  • Sep 2006
                  • 9873

                  #9
                  Originally posted by stavid View Post
                  ...also, parts of piston rings are just gleaming. would these be white metal?
                  Not white metal, if they are gleaming, most probably chrome (plated); it is sounding like a diesel piston to me.
                  WA$.

                  Comment

                  • stavid
                    Rank 5 Registered User
                    • Feb 2011
                    • 48

                    #10
                    Originally posted by Creaking Door View Post
                    Not white metal, if they are gleaming, most probably chrome (plated); it is sounding like a diesel piston to me.
                    hi again, was afraid id hear it might not be an aircraft piston but hey ho! wasnt able to take pics today but jotted down a couple of sizes and numbers that are legible. they are as follows: approx 107mm dia. x 120mm high or imperial equivalent. metric rule used sorry. numbers: BLPV 100080?? 703F-61??.

                    Comment

                    • Denis
                      The past is preferable!
                      • Mar 2004
                      • 1517

                      #11
                      Sounds like a Perkins diesel piston to me too.
                      Hertfordshire Airfields Memorial Group
                      http://hamg.co.uk

                      Hunsdon, Sawbridgeworth and Matching Green airfields..
                      http://www.wartime-airfields.com

                      Comment

                      • Creaking Door
                        Rank 5 Registered User
                        • Sep 2006
                        • 9873

                        #12
                        Originally posted by stavid View Post
                        ...approx 107mm dia. x 120mm high or imperial equivalent...
                        Sorry, way too small for any serious aero-engine (unless you count Napier)!
                        WA$.

                        Comment

                        • stavid
                          Rank 5 Registered User
                          • Feb 2011
                          • 48

                          #13
                          Originally posted by Creaking Door View Post
                          Sorry, way too small for any serious aero-engine (unless you count Napier)!
                          cheers CD. i actually thought it was a bit large for an aircraft engine. shows how much ( or little) i know!! . as an aside, the hanger in which i work at ex raf evanton used to have some lovely aircraft recognition posters on the wall, which some clown saw fit to paint over. some folk just dont get it!!

                          Comment

                          • stavid
                            Rank 5 Registered User
                            • Feb 2011
                            • 48

                            #14
                            Originally posted by Creaking Door View Post
                            Sorry, way too small for any serious aero-engine (unless you count Napier)!
                            hi again, could i pick your brain regarding the possible origin of a flap position dial found in the hangar where i work at ex raf rn evanton. many thanks. s.
                            Attached Files

                            Comment

                            • Creaking Door
                              Rank 5 Registered User
                              • Sep 2006
                              • 9873

                              #15
                              Sorry, Im no use when it comes to instruments.....but Im sure somebody here will be able to help.

                              Id still like to see a photograph of your piston if you can post one.
                              WA$.

                              Comment

                              • Bruce
                                Independent analyst
                                • Jan 2000
                                • 10226

                                #16
                                Vampire

                                Comment

                                • stavid
                                  Rank 5 Registered User
                                  • Feb 2011
                                  • 48

                                  #17
                                  Originally posted by Creaking Door View Post
                                  Sorry, Im no use when it comes to instruments.....but Im sure somebody here will be able to help.

                                  Id still like to see a photograph of your piston if you can post one.
                                  will be happy to post a pic of the piston asap. cheers.

                                  Comment

                                  • stavid
                                    Rank 5 Registered User
                                    • Feb 2011
                                    • 48

                                    #18
                                    Originally posted by Bruce View Post
                                    Vampire
                                    hi there, according to some bumf i found, the closing date for the airfield here was march 1948. this obviously means there were no vampires based here. any suggestions?

                                    Comment

                                    • Bruce
                                      Independent analyst
                                      • Jan 2000
                                      • 10226

                                      #19
                                      Vampires were operational from 1944, so no reason why not!


                                      Bruce

                                      Comment

                                      • stavid
                                        Rank 5 Registered User
                                        • Feb 2011
                                        • 48

                                        #20
                                        Originally posted by Bruce View Post
                                        Vampires were operational from 1944, so no reason why not!


                                        Bruce
                                        many thanks for your reply bruce. wasnt at all sure when the old vampire came into service wrongly presumed it was later than when raf evanton closed. im delighted because i couldnt tie it together otherwise. the literature states all the aircraft based there before, during and after the war. this obviously doesnt include the vampire, though i suppose it makes sense they could easily have been visiting, on detatchment etc?.

                                        Comment

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