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T head engine by Brian

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  • #31
    that's a beautiful finish! For large radii I've had some success using a left hand boring bar sideways out of a boring head.

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    • #32
      Brian Rupnow
      Design engineer
      Barrie, Ontario, Canada

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      • #33
        Someone needs to build a Charlie Taylor engine.
        That would be neat.

        -Doozer
        DZER

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        • #34
          Well, so far, so good. The cylinder base mounts to the main chassis. Depending on what my wife has planned for me today, I might even get a cylinder up there.
          Brian Rupnow
          Design engineer
          Barrie, Ontario, Canada

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          • #35
            We have a cylinder. It is pretty, it fits where it's supposed to, and after honing the bore with a 3 stone brake hone it measures about 1.001" bore. That's all for today folks. I will get some mounting holes drilled in the cylinder tomorrow.---Brian
            Brian Rupnow
            Design engineer
            Barrie, Ontario, Canada

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            • #36
              Great work Brian, as always!! That base and cylinder really look sharp!
              Robin

              Happily working on my second million Gave up on the first

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              • #37
                Thank you rdfeil. This engine is a "summer surprise". I wasn't going to build another engine until fall, but these parts are rolling out of the mill and lathe and I'm liking it.---Brian
                Brian Rupnow
                Design engineer
                Barrie, Ontario, Canada

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                • #38
                  Impressive progress Brian and I trust it will continue to go well!

                  John

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                  • #39
                    Brian really rips into a project when he gets started. He turns out good parts rapidly.

                    I do not work nearly that fast, although when I get motivated I do tend to keep at it until done.
                    2730

                    Keep eye on ball.
                    Hashim Khan

                    Everything not impossible is compulsory

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                    • #40
                      When you are retired, you can do that kind of thing.

                      -D
                      DZER

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                      • #41
                        Originally posted by Doozer View Post
                        When you are retired, you can do that kind of thing.

                        -D
                        I AM retired.... but I also have other stuff to do around the property. And, last time I counted them up, I had about 8 "hobbies".
                        2730

                        Keep eye on ball.
                        Hashim Khan

                        Everything not impossible is compulsory

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                        • #42
                          Due to the way this engine is constructed, the swing of the con rod would hit the side of the cylinder bore on it's way to bottom dead center. This cavity in the bottom of the piston aligns with the cavity in the bottom plate which bolts to it, to give clearance for the swing of the connecting rod.
                          Brian Rupnow
                          Design engineer
                          Barrie, Ontario, Canada

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                          • #43
                            And---The miserable piggy of the day award goes out to this cylinder head. It is finished except for the cutting of the cooling fins, but I've managed to put in an entire day on this part. Some days you eat the bear----Some days the bear eats you!!! The bear eat me today on this part, but I'm pleased with it.
                            Brian Rupnow
                            Design engineer
                            Barrie, Ontario, Canada

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                            • #44
                              When your main objective is to counteract boredom and engage in the pleasant process of machining, spending a whole day on one part seems like success to me.

                              This little piggy was just an antidote for "boar"dom, And you managed to "bear" it well!
                              http://pauleschoen.com/pix/PM08_P76_P54.png
                              Paul , P S Technology, Inc. and MrTibbs
                              USA Maryland 21030

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                              • #45
                                You're making excellent progress Brian. Don't sell yourself short, you do more in one day than many of us do in a week!

                                Odd isn't that as the older we get with less time to spend on this planet we adopt a hobby that is so time intensive.
                                Home, down in the valley behind the Red Angus
                                Bad Decisions Make Good Stories​

                                Location: British Columbia

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