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| 90 degree V4 OHC |
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| dbvandy:
--- Quote from: NickG on March 27, 2011, 04:32:52 PM ---Wow - I didn't realise it had 4 valves per cyl. before don't think I've seen much like this on a model before. :bow: Nick --- End quote --- Nick, It definitely ups the complexity of the build. Lots more to go wrong with dimensions a seals, but I think everything is within tolerance o that it will run, just the parts will have to be marked so that they go back the same way and fit. As I did each head, I refined and fine tuned the dimensions, so they are not exactly the same, so valve clearances and mounting holes are not exactly in the same place on all four heads, very close, but not exact. --- Quote from: craynerd on March 27, 2011, 03:19:16 AM ---Fantastic work Doug.... you are flying through these engine builds!! You seem to build more in a few days than I do ge through in a month :bow: :bow: This is just a stunning build - will you be drawing up plans when you get it running....could be my next engine if I get my Webster running :headbang: --- End quote --- Chris, I will draw some up after I get this running and perfected, but it will be a while. Right now I am designing this engine by staring at it for long periods of time and then dreaming about it all night. Most likely I will build a second engine as I draw up the plans to make sure it all goes together correctly. --- Quote from: j45on on March 27, 2011, 02:31:13 PM --- :offtopic: I wish we had cherry coke zero in the UK :( --- End quote --- one of my all time favorites... really good with rum.... Doug |
| dbvandy:
--- Quote from: NickG on March 26, 2011, 03:19:14 AM ---Brilliant work on the heads doug, really nice and it looks like the dro's have transformed your mill. Considering it's a hybrid made from a drill press you've got excellent results from it :thumbup: --- End quote --- the only real problem with the "hybrid" is the stiffness of the column. I am looking for some 65mm tube that is stiffer, but it does a very good job and is probably close to the stiffness of a mini mill. The table is not mounted directly to the base, so it does not move at all.... It is a HUGE step up from my tiny 8 inch and the compound x-y vise where I did the Webster and the Otto. One day I will move up to a Bridgeport or a mill drill. I am leaning toward the mill drill because it is a bit more portable if I ever move... Doug |
| dbvandy:
I did a little design on the V4 today. The cam mount blocks are roughed out and mounted, most of the stock will be removed, just enough to support the bearings will be left. Now to tap the cylinders and make some gaskets so I can start mounting things permanent. I also started to get a feel for how the belt will run and drive the cams and distributor. Sprockets are $15 each... times 5 for the 30s and one 15 tooth... $90 worth of gears... I will be cutting my own... might buy one, then copy it. The belt will be about 35 inches long. More to come... Doug |
| saw:
Very nice, good work :clap: :clap: :thumbup: |
| BiggerHammer:
Very nice indeed and moving along very quick pace. Keep it up and this thing will be running in no time. |
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