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Brian, Bee - Yu - Tee - Full! --Tim

Lawrence, Like Brian said, what a day to show up with everyone in a tizzy! Here's another welcome from another Hoosier. --Tim

Dennis, thanks for the heads-up on the rocker arm post length. I just checked, and indeed the numbers don't seem to add up right. Does your post seem to be about .063 short? Vince, I've not yet used the pressure testing fixture. I still have to cut the seats and install the rocker arm post. And...

Still more work on the head. The plans show the upper edge rounded over, and though it seemed a little late in the game, I decided to go ahead and do it. In my 4-jaw Taig chuck on the rotary table, I centered things up and used a corner-rounding bit on it. Uneventful. Job done. To lap the...

In for the duration. --Tim

Mike, Thanks for that. I had heard that magnet trick before, and for some reason, had been skeptical. When you explain that the point at which the metal becomes non-magnetic and the transformation temperature are not exactly the same, and in fact differ significantly for some alloys, that makes...

This picture is for Dennis. Milling marks gone. And yes, getting to this point would have been much easier without the valve guides installed. I also addressed the gouges I put in the sides by clamping it unprotected in v-blocks. I hope I can pretty things up more when it's closer to...

I agree the Forrest Addy solution sounds good. And cutting into the balance block and using that to measure the cut diameter is quite elegant. --Tim

Trout squeezer, Yeah, you're right. I realized that soon after I pressed them in. I just got caught up in the moment. Thanks for your attention! --Tim

Hi Allen, that is an interesting way to make a valve. The valve guides I made previously were turned for a sliding fit in reamed holes in the head. I admit my plan was to just loctite them in (the plans say that would be alright). Then I was reading Vince's Kiwi log again, and I saw where he...

Here's another request for more pictures. I have a couple of Hasbrouck plans on file and I may never get to them. So I'll have to do a build vicariously through you! --Tim

Thanks for your comments Tin, George, Brian, Vince, and Brian. Glad you are all watching. Everybody else, too. Yes George, learning is what it's all about. The big take-away from the valve experience has been that I am losing my fear of tool-grinding. A big step in my opinion, to lose one's...

Brian, I like the look of the thicker nuts here. The contrast of the brass and that paint looks great. --Tim

Vince, You and I are making valves at the same time. I must say that one you hold in your hand is beautiful! Keep up the good work. --Tim

Ok, I just checked, and what I have is a Dorian 'Shank Cut-Off tool holder RH' SGTHR9,5-2 It uses a SGTN insert. --Tim

Brian, I got a tool that works pretty well. You can get a glimpse of it in some parts of my Upshur engine build. In my latest posting I'm parting off a valve with it. The holder 'with integral shank', which fits perfectly in an AXA holder, cost about 56 bucks from McMaster-Carr. The inserts are...

I was just reading a post by Vince (vcutajar) from today about his making of the valves for this Kiwi Mk2. Like he, I referenced the excellent postings by gbritnell: http://www.homemodelenginemachinist.com/index.php?topic=19103.0 http://www.homemodelenginemachinist.com/index.php?topic=15942.135...

Hi Gail, I happened upon an old book (available online from a Google scan), called "Aero Engines" by George Arthur Burls. There are a couple of paragraphs on REP engines, mostly comparing them to Anzani engines. The coverage of the Anzanis is somewhat more extensive. The section eschews his...

I know any variation on the spacing of those fins would stand out like a sore thumb, and it looks like you nailed it! --Tim

A hobbyist with more time than money must needs pay himself less, and Bogs' logic still stands. --Tim