• brian Rupnow's Avatar
    02-20-2017, 01:15 PM
    This morning I finished the angle that fits between the two sideplates and forms the central body of the "crank-case". Everything went together okay,...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-19-2017, 07:56 PM
    There is an undefined point when a craft begins to become art. These sidepates are getting pretty close to that point. I like them a lot. I know that...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-18-2017, 01:26 PM
    Houston, we have a ---crankshaft!!! One thing to be aware of when using drill rod for crankshafts. Since it is .0005" oversize, it won't fit thru...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-17-2017, 09:33 PM
    Today I made crankshaft webs. I didn't originally plan on having counterweighted webs, but the weight of that cast iron piston really surprised me. I...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-17-2017, 11:40 AM
    I had almost finished this connecting rod yesterday, but after almost 12 hours in the shop I was quite happy to quit for the day when my wife got...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-16-2017, 02:32 PM
    Remember how I said that you just want the piston to start into the cylinder, but not slide all the way in. All of the other machining operations are...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-16-2017, 10:51 AM
    This morning I have a piston on the go. It is going to be made from cast iron. Why?---Because when I buy cast iron to make cylinders from, I always...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-15-2017, 06:18 PM
    The cylinder head assembly is all back together, and everything fits. Non of the parts I hardened or heat treated changed shape in any significant...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-15-2017, 02:29 PM
    Anything is possible. If I was to use roller lifters, the cam towers would have to be higher, which I wanted to avoid, and the lifters would have to...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-14-2017, 09:26 PM
    After making my cams using the "quick and nasty" method in the vertical mill, I was curious about how closely the milled profile matched the actual...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-13-2017, 10:11 PM
    I'm happy to report that my home-grown heat treat and tempering has come out very well. This is my "test and control" piece, which was heated to...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-13-2017, 10:10 PM
    brian Rupnow replied to a thread Tempering 01 steel in General
    I'm happy to report that my home-grown heat treat and tempering has come out very well. This is my "test and control" piece, which was heated to...
    24 replies | 1106 view(s)
  • brian Rupnow's Avatar
    02-13-2017, 09:18 PM
    brian Rupnow replied to a thread Tempering 01 steel in General
    Ahidley--You're late to the game. They are done.
    24 replies | 1106 view(s)
  • brian Rupnow's Avatar
    02-13-2017, 09:11 PM
    brian Rupnow replied to a thread Tempering 01 steel in General
    I can't really tell what the 1 hour heat soaking at 400 degrees has done to the material, but the quenching in oil has certainly turned them black....
    24 replies | 1106 view(s)
  • brian Rupnow's Avatar
    02-13-2017, 09:09 PM
    I can't really tell what the 1 hour heat soaking at 400 degrees has done to the material, but the quenching in oil has certainly turned them black....
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-13-2017, 09:04 PM
    Yes, I already have the turnip and cabbage cutting job at Christmas and Thanksgiving. Sometimes I get onion duty too.
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-13-2017, 08:02 PM
    brian Rupnow replied to a thread Tempering 01 steel in General
    Well, the cams are in the oven---Kinda sounds like the beginning of a song, doesn't it!! I heated the cams and the cam followers to a orange/ red...
    24 replies | 1106 view(s)
  • brian Rupnow's Avatar
    02-13-2017, 08:00 PM
    Well, the cams are in the oven---Kinda sounds like the beginning of a song, doesn't it!! I heated the cams and the cam followers to a orange/ red...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-13-2017, 12:38 PM
    I discovered this morning that I didn't have any 5/8" diameter brass to build an exhaust from. Lots of 1018 round steel 'shorts" though, so that's...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-12-2017, 09:18 PM
    I have a couple of small cams and cam followers that I have machined from 01 steel. I will harden them by heating to bright orange with oxy acetylene...
    24 replies | 1106 view(s)
  • brian Rupnow's Avatar
    02-12-2017, 10:18 AM
    This is a short video showing the operation of the overhead valve train in operation. Please let me know if you can see it okay.--Brian...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-11-2017, 01:36 PM
    Look what showed up at my house today. I'm impressed, they look great, but it makes me crazy that something that started out in USA for $46 ends up...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-10-2017, 09:37 PM
    Today after work, I made a pair of "lifters" out of 01 drill rod. They aren't real pretty, but they are dimensionally accurate. Since I don't have...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-09-2017, 08:12 PM
    It's been a busy day!! I got up early this morning and mushed my Huskies down to Ingersoll, Ontario for a design review of a project I have been...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-08-2017, 09:06 PM
    Andy--That is just a testament to "Learning from my mistakes". A lot of what I do now is just repetition of something I've done a dozen times...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-08-2017, 06:54 PM
    Both valves are machined, lapped into their seats, and cut to length. I machined a piece of bronze for the bridge that the "lifters" slide in,...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-08-2017, 11:48 AM
    This is a rare picture of a valve being born!! I turn the small diameter down in three 1/2" long stages, aiming for about .002" larger in diameter...
    119 replies | 8633 view(s)
  • brian Rupnow's Avatar
    02-07-2017, 09:18 PM
    brian Rupnow replied to a thread Lucky shot in General
    I seen a 14" double cut band saw in a big sawmill in northern Ontario lose most of it's carbide teeth on one side in a double bitted axe head that...
    22 replies | 2070 view(s)
  • brian Rupnow's Avatar
    02-07-2017, 07:48 PM
    You can call me Two-cam-Sam!! There are a few things going on in this picture. The cam I machined yesterday just wasn't going to do it. I used the...
    15 replies | 1532 view(s)
  • brian Rupnow's Avatar
    02-07-2017, 07:43 PM
    You can call me Two-cam-Sam!! There are a few things going on in this picture. The cam I machined yesterday just wasn't going to do it. I used the...
    119 replies | 8633 view(s)
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About brian Rupnow

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Date of Birth
July 7, 1946 (70)
About brian Rupnow
Biography:
I am 69 years old, a design engineer by profession, and an amateur machinist.
Location:
Barrie, Ontario, Canada
Interests:
I build hotrods as a hobby, and have been involved in custom cars and drag racing most of my life.
Occupation:
I am a design engineer with 50 years experience designing prototype machinery and factory automation

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Brian Rupnow

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