• brian Rupnow's Avatar
    Today, 12:35 PM
    Going boldly where no man has gone be----Well, you get the idea.--Fan shroud is coming together nicely. At the last minute I decided to make the...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    Today, 07:43 AM
    Thanks Duffy.--Strangely enough, when I was developing this design, I thought about a piece of exhaust tubing, but when it came time to build it, I...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    Yesterday, 08:13 PM
    I bought an anti-fatigue mat for in front of the mill and the lathe, and it helps a lot. I also have two different height stools, one that suits the...
    34 replies | 1660 view(s)
  • brian Rupnow's Avatar
    Yesterday, 06:12 PM
    When Ringo sang the song "It don't come easy" I'm sure he must have been thinking about something like this fan shroud!!! The only tube/pipe I could...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    Yesterday, 12:35 PM
    -Fabrication of the timing gear enclosure went very quickly with no problems. I did have to split it to get it on, as I had indicated on the drawing....
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    Yesterday, 08:35 AM
    The engine runs well, but the gears are---ahh----noisy. I knew that they would be. They mesh well, and operate very smoothly now that I have an hours...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-19-2014, 03:01 PM
    My lathes lowest speed is 115 rpm, which is fine for parting off work, but too fast for threading. It has a speed of 550 rpm which I use for most 1"...
    19 replies | 730 view(s)
  • brian Rupnow's Avatar
    10-19-2014, 12:47 PM
    I made up gaskets for the intake and exhaust flanges (I had forgotten to make them) and after a bit of tuning this morning, I got out my spanking new...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-19-2014, 11:03 AM
    VPT--Bar stock as opposed to castings. The cast iron cylinder is made from a piece of cast iron round bar--thus--bar stock. As far as the crankcase...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-19-2014, 08:53 AM
    I have uploaded about 40 drawings to filefactory.com. If you click on the attached link, you should be able to download then free. They are in pdf...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-19-2014, 06:03 AM
    After I went to bed last night, I realized that during the excitement of the first run, I had forgotten to put gaskets between the intake/exhaust...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-18-2014, 05:36 PM
    Thank you guys. Sometime within the week, I will be posting a link to a download of all the updated drawings as .pdf files. Nothing would give me...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-18-2014, 10:59 AM
    Here is a video taken from the other side of the engine, and a video in which the Chuck Fellows carburetor gets an honourable mention. The crankcase...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-18-2014, 10:22 AM
    As a matter of interest, I took my new laser aimed temperature sensing gun out to the garage after the engine had been running for 15 minutes at a...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-18-2014, 09:55 AM
    It's been a GREAT morning here. I got up and borrowed the gas tank off my Odds and Ends hit and miss engine, did a little machining on the cylinder...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-17-2014, 06:43 PM
    Engine does have reasonable compression for a new engine that has never yet fired. I hooked it up with a v-belt to my 1800 rpm electric motor with a...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-17-2014, 03:53 PM
    After a full day of final assembly, individual cam timing, ignition timing, adding a new set of points and condenser, adjusting valve lash, and...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-16-2014, 09:14 PM
    As I began my final assembly of the engine, a thought occurred to me. The displacement of this engine is quite large in relation to the volume inside...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-16-2014, 04:21 PM
    Cross your fingers for me guys. It's pretty well all over but the final assembly. I am pleased with the way my intake and exhaust manifold turned...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-15-2014, 08:11 PM
    Solidworks has a free 3d viewer at Solidworks.com---However, the object to be viewed must have been created in 3D. there is no program that can...
    15 replies | 530 view(s)
  • brian Rupnow's Avatar
    10-15-2014, 07:09 PM
    I think I may try my Chuck Fellows carburetor on this engine. It works great on the Webster. I will make a more complicated larger carburetor if I...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-15-2014, 02:31 PM
    If the engine runs, I can guarantee that it will run cool. The white plastic fan is out of some computer hardware. I am not crazy about the color of...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-14-2014, 08:54 PM
    For reasons far more complex than I want to go into (but mainly involving how little material was left beside the counterbored bolt holes), I have...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-14-2014, 05:43 PM
    Now here is something a little different. I really didn't like the look of the exhaust pipe running out of the engine on an angle, and the carb being...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-14-2014, 05:15 PM
    Duffy--Nobody that I know of. I bought a piece of brass today big enough to make the part for $12.---Brian
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-13-2014, 02:23 PM
    I am down to the point in my parts making where all that is left is the carburetor, exhaust pipe, and the cooling fan system. I still have a lot of...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-12-2014, 08:36 PM
    I've heard it said that "Close only counts in horse-shoes and hand grenades." There is one other place that it counts, and that is clearance where...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-12-2014, 11:00 AM
    This morning I got up early and lapped both of the valves into the seats. I first lapped them with 400 grit carborundum paste, then after a good...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-11-2014, 06:30 PM
    I haven't abandoned ship--Just been very busy. This afternoon I made up the knurled adjuster knobs that fit on the ends of the camshafts, but then...
    308 replies | 27422 view(s)
  • brian Rupnow's Avatar
    10-10-2014, 08:20 PM
    Wayne--I like a challenge, but the journal that the con rod rides on is hardened steel. Bit more challenge there than I can handle. Trenton eh--I...
    5 replies | 227 view(s)
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About brian Rupnow

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About brian Rupnow
Biography:
I am 64years 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 42 years experience designing prototype machinery and factory automation

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