• brian Rupnow's Avatar
    Today, 07:36 PM
    brian Rupnow replied to a thread Head Gasket Material in General
    MotorradMike--Yes indeed, that does look like the same stuff. Canadian Tire doesn't sell that assortment anymore. I have high hoped for the Mcmaster...
    26 replies | 763 view(s)
  • brian Rupnow's Avatar
    Today, 09:16 AM
    brian Rupnow replied to a thread Head Gasket Material in General
    Doozer--I have tried copper gaskets and not had a lot of success with them. They might work fine on larger stuff, where you have larger bolts to...
    26 replies | 763 view(s)
  • brian Rupnow's Avatar
    Today, 07:48 AM
    About 20 years ago I bought a pack of "assorted gasket material". One of the sheets was black in color, about .031" thick and the sheet sizes were...
    26 replies | 763 view(s)
  • brian Rupnow's Avatar
    Yesterday, 05:45 PM
    So now the engine has a starter ring. If I ever get finished to the point where I want to start it, the ring will be waiting for me.---On to more...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    Yesterday, 01:19 PM
    Today I'm just tidying up loose ends, so decided to machine the starter collar. This bolts onto the brass flywheel and lets me use my variable speed...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    Yesterday, 08:32 AM
    VPT--I do read all of the posts---some I answer, some I don't. If you are referring to the opposed twin cylinder engine, I did indeed go to a much...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    Yesterday, 08:24 AM
    If you guys remember back to when I made the crankshaft, there is a .563" diameter spacer ring on the back side of the web on each half of the...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    Yesterday, 07:56 AM
    Cuttings--I haven't played very much with cam profiles prior to this build. The science of cams is not only semi-mystical, but it's also a miserable...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 07:48 PM
    brian Rupnow replied to a thread Way OT- Brining Pork in General
    Bobslad---And you need to read this--- Blowing Up the Railroad When I was a kid about 10, my parents and I were visiting one of my dads old...
    21 replies | 988 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 07:43 PM
    Duffy---"Truly smooth" is kind of a relative thing. Depends a lot on the sharpness of the reamer, the speed of the lathe and the skill of the...
    20 replies | 1164 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 07:31 PM
    Andy--its an optical illusion. The bolts on both sides of the centerline are symmetrical. The fin grooves--well, not so much. My speed on any given...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 05:44 PM
    brian Rupnow replied to a thread Way OT- Brining Pork in General
    You really need to read this--- Grandmas pressure cooker— When I was a kid, my family never considered itself poor. We always had some kind of...
    21 replies | 988 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 05:05 PM
    I machined the valves and the keepers today for the prototype side valve engine I am building.. The valve on the right is open .080" which is the...
    226 replies | 57812 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 02:34 PM
    I ream "to size". Then I run a 3 stone brake cylinder hone through from end to end a dozen times to knock down any high spots. Then I lap. This...
    20 replies | 1164 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 02:31 PM
    We have valves and valve keepers!!! I had to order some gasket material and some extreme high temperature sealant and it won't be in until tomorrow,...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 12:44 PM
    Gentlemen--Thank you all very much for your input. I think I will stay with my home made aluminum lap. At least my home made laps are not prone to...
    20 replies | 1164 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 10:48 AM
    Thank you Ironmonger.----Toolguy--You buy .020" Q tips at the veterinary supply store. You use them for cleaning the ears on your pet hamster!!!
    20 replies | 1164 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 09:17 AM
    VPT---I don't, but I can well remember Brown's water powered sawmill from when I was a kid. Much of the equipment in the mill was driven by line...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 08:54 AM
    Oh Heck--While I'm setting here waiting for a call back about gasket material, I may as well put up a drawing of the valve keeper.
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 08:04 AM
    And in case you are a bit confused about how this valve business goes together, here is a cross section thru the valves, cages, tappets, cams,...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-16-2014, 07:55 AM
    Sometime to day I hope to visit one of my suppliers and pick up some suitable head gasket material and some high temp sealing compound for the two...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-15-2014, 08:04 PM
    Thank you Arthur.
    20 replies | 1164 view(s)
  • brian Rupnow's Avatar
    09-15-2014, 07:15 PM
    I am thinking of buying a "brass barrel lap" from Travers Tool to use for lapping the 1" bore on the cast iron cylinder of the engine I am building....
    20 replies | 1164 view(s)
  • brian Rupnow's Avatar
    09-15-2014, 06:36 PM
    After letting the Loctite set up for a couple of hours on the pressed in valve cages (.0015" interference fit) I drilled the connecting holes thru...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-15-2014, 03:11 PM
    In these two pictures you can see the underside of the valve cages in one shot, and the top of the cylinder and valve cages in the other. In the shot...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-15-2014, 03:05 PM
    So now we have a pair of valve cages installed. The first picture shows one of the semi-completed valve cages laying beside the cylinder, with the...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-15-2014, 11:59 AM
    Hmmmm---Everything I do has consequences--- I had to go out this morning to buy some brass to make valve cages out of. While I was out and about, I...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-15-2014, 09:06 AM
    I was getting ahead of myself!! Before I make the piston I have to lap the cylinder bore. Before I lap the cylinder bore I have to figure out a...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-14-2014, 02:22 PM
    Larry--I am going to harden the wrist pin to 55 Rockwell. I hardened the crankshaft pin as well. Any time a roller bearing rides directly on the...
    224 replies | 18278 view(s)
  • brian Rupnow's Avatar
    09-14-2014, 11:14 AM
    Jon--That's a pretty area. Wife and I go over to Elora occasionally for a summer "get away" drive.--Will stop in for that beer next summer!!!---Brian
    224 replies | 18278 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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