Page 83 of 83 FirstFirst ... 3373818283
Results 821 to 828 of 828

Thread: Building a Nieuport 11...

  1. #821

    Join Date
    Nov 2011
    Location
    KDCU
    Posts
    305
    And to state the obvious.....confirm you have an accurate oil pressure gage before changing relief valve tension. I had to buff the plunger a couple of times on my 1/2 VW when OP got a bit erratic. Cold oil can also impact pressure.
    Sam Buchanan
    EAA Technical Counselor
    The RV Journal RV-6 build log
    Fokker D.VII semi-replica build log
    YouTube Channel

  2. #822
    rwanttaja's Avatar
    Join Date
    Jul 2011
    Location
    Seattle
    Posts
    1,781
    Quote Originally Posted by Frank Giger View Post
    And I broke the code on mounting the aircraft in a long coat - from standing on the seat, make sure the coat is down and not hung on the back of the cockpit, getting it as forward in the back as possible. Place one's feet on the pedal runners and, with one's shoulders at the top of cockpit, push up to where one's butt isn't on the seat. Pull the back of the coat down until it's tight down the back. Sit down. Fidget around in the seat until it's how one wants it - and a fold across the back is a painful thing in flight, so if it's not right, stand back up! Buckle up and smile!
    My worst case came on a ~35 degree day. The headrest of my airplane is a half-circle of plywood, fitting on the end of a truncated cone, covered with vinyl.

    The guy who built the plane made the plywood slightly larger diameter than the metal bits. When I was sliding down into the cockpit, the edge of the plywood, under the vinyl cover, acted like a hook. It grabbed my leather jacket, it grabbed my sweater, it grabbed my shirt.

    Which meant I sat down with my bare back pressed against the frozen seatback. Yeouch!

    Ron "Bareback mountain" Wanttaja

  3. #823

    Join Date
    Dec 2014
    Posts
    24
    How about using oil with lower viscosity during could winter period ?

  4. #824

    Join Date
    Aug 2011
    Location
    Alabama
    Posts
    1,804
    It was the same problem in the heat of summer, so it's not a function of oil weight.
    The opinions and statements of this poster are largely based on facts and portray a possible version of the actual events.

  5. #825

    Join Date
    Apr 2014
    Posts
    34
    Quote Originally Posted by rwanttaja View Post
    Speaking of that, how are the new brakes working?

    I flew Saturday, 38 degrees here in Seattle. Wore my B3 flying coat (shearling) and a ski mask, the rest just ordinary wear. Very comfortable for the ~45 minute flight.

    One trick I've been using is to wear a knit turtleneck shirt under a flannel shirt. Nice and toasty, and if the scarf gets dislodged, it doesn't matter as much.

    Ron Wanttaja
    Neck gaiters are a great solution to the problem. You wouldn't really need the scarf with a neck gaiter.....

    but you gotta wear the scarf.

  6. #826
    rwanttaja's Avatar
    Join Date
    Jul 2011
    Location
    Seattle
    Posts
    1,781
    Quote Originally Posted by Saville View Post
    Neck gaiters are a great solution to the problem. You wouldn't really need the scarf with a neck gaiter.....

    but you gotta wear the scarf.
    Don't need the scarf with a turtleneck either...but like you say, one HAS to wear a scarf.

    My wife even found me a replica WWII RAF scarf, dark blue, with white dots. That's what I normally wear.

    http://www.bowersflybaby.com/stories/scarves.html

    Ron Wanttaja

  7. #827

    Join Date
    Aug 2011
    Location
    Alabama
    Posts
    1,804
    My Mom knitted me a new scarf that is twice as wide as the one she originally made, as the thinner one won't stay up to cover my lower face.

    I drove down to Birmingham and picked up new oil pressure relief valves. The pressure is still way too high, and I'm going to have to cut down the rear spring some more to allow the stopper/piston to relieve some of it.

    The concern, of course, is that I wind up taking a bit too much off of the springs, and so I needed a fresh set in case I have to start over.

    The rear piston thingie looks like it's the wrong one, having a set of small grooves around it horizontally. They're perfectly spaced and go all the way around, which hints that it's the wrong one for this engine. The one for the single oil pressure relief engines is made like that.

    I worked some fine grit sandpaper in the tube that holds the relief valve, and didn't feel any roughness in it.

    So tomorrow it's up to the airfield to once again drain the oil,* pull the oil cooler off, and go through the whole adjustment process again.

    My goal is to replicate the normal oil pressure operating range of 10 pounds per 1,000 RPM, as the hot rod springs in favor are designed for high RPM's and temps. At a max RPM of 3300 and a cruise of 2500, I'm not really taxing it. Indeed, I've yet to bring the oil up to operating temperature range in flight, even with blocking off the oil cooler to just a small window. And yes, the sensor and gauge are working, as when I was adjusting timing without the prop it heated up just fine.

    The joys of running a VW have me singing its praises today. Cost of two new oil pressure relief valves and springs? Five dollars and forty five cents. And the oil is bog standard 20-50 and five quarts can be had for the price of one quart of aviation oil.

    * I'm pleased to report that the oil, after running two hours in the newly rebuilt engine, came out looking pretty darned good and metal free.
    The opinions and statements of this poster are largely based on facts and portray a possible version of the actual events.

  8. #828

    Join Date
    Apr 2014
    Posts
    34
    Quote Originally Posted by rwanttaja View Post
    Don't need the scarf with a turtleneck either...but like you say, one HAS to wear a scarf.

    My wife even found me a replica WWII RAF scarf, dark blue, with white dots. That's what I normally wear.

    http://www.bowersflybaby.com/stories/scarves.html

    Ron Wanttaja
    The benefit of the neck gaiter over just a turtleneck is that if you need to, you can pull it up over your nose and therefore cover your cheeks, nose and mouth.

    Nothing wrong with wearing both.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •