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| OKTomT:
Hi guys. Thanks for your comments. I have made a little progress on the engine . pressed in cast iron sleeves in the cylinders and bored them to 3.125, drilled the mounting stud holes in them and the block and built a master rod. Here is a picture of the rod. I am not sure the slave pin hole is in the right location does any body know how to figure out the proper location?? 45 degrees 3.75 stroke |
| sdezego:
I only have experience with KNife and Fork VTwin design. I would think though that when the Rod angles match the the Cyl Angles (45*), the slave crank pin's centroid should be linear with the Main Crank pin and the wrist pin, and Rod lengths the same at that point. i.e. extend a line though all 3 pin centers at 45* ...that is off the cuff though. |
| OKTomT:
Thanks sdezego. That is how I think it should work too. but that would put the slave pin hole way out there. I have found pictures of rods that look like the one that I built but no info on the rest of the engine. Here is a picture of my rod in the crankcase and it wont work like this so I am going to make knife and fork rods for it. |
| sdezego:
Kind of interesting actually. I would need to pull out the old kinematics book :) Fork and knife would definitely be a sure thing. I thin it is odd that I have never come across this before. But in a quick search, I found this thread http://thekneeslider.com/drysdale-godzilla-v-twin/. Doesn't give you any dims or specific insight, but interesting non-the-less! |
| vintageandclassicrepairs:
HI Tom, Some vintage V twins used side by side rods with off set small ends, I think these would be a lot easier to make than knife /fork setup The other alternative is to source some rods or complete assembly from a breakers or ebay HTH John |
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