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| V-twin engine from scratch - yet another interpretation of how (not) to build a |
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| sorveltaja:
I bored the cam housing holes on the lathe, and made brass bearings also. Gears needed some fiddling, and lengthy run-in sessions on the lathe, and although they're still quite stiff to rotate, they finally fit in the place, and start to mesh together. Overly long cam gear axles on the above pic are just part of the test setup. |
| sorveltaja:
Cam pair blanks so far: I'm not quite sure yet, how to form the cam shapes. Apparently by filing, although it requires a lot of beer elbow grease. Simple filing jig for the purpose is on my mind. |
| Brass_Machine:
Shaping up quite nicely. Anxious to see/hear it run. As far as doing the cam lobes... afraid I can't offer any advice. I think I have a link somewhere. Will look for it. Eric |
| sorveltaja:
I removed most of the excess cam material with that mighty diamond cutting disc, that was attached to lathe's chuck: Rest was done by filing on the jig. Inlet lobes(the ones that point upwards) are almost finished, they only need some rounding and smoothing. The exhaust lobes have still excess material in them, to give some room to 'tune' the final angle between lobes. Atleast now I know, which direction the engine is going to run . |
| madjackghengis:
Well Sorveltaja, it looks like you figured out the cams all right, they look like they ought to work, and that puts you another big step closer to hearing this thing fire up. Looking forward to the video, and seeing it run. Good work!! :beer: Mad Jack |
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