Inspiration for new air motor

[Brian Rupnow]

I just spent 20 minutes in the garage, untaping the flywheels and washing any blue paint off the sides of the flywheels. The paint always "migrates" under the tape edges when you are masking off steel, and if you don't catch it just at the right time it is very difficult to clean off-----leaves a ragged looking edge. You want the parts dry enough that the paint won't stick to your fingers, but still not absolutely dry. A rag wrapped over the end of your finger and wetted with paint thinners works excellent for this, but it's a rather delicate process. Someone asked if I was going to clearcoat the polished face and edges of the flywheels, and I said no, because all of the polishing compounds you use are wax based and will protect it from rusting.--That is still correct---But--if you are going to paint the flywheels you have to be sure and remove all of the wax first with strong laquer thinners. So--consequently, when my paint is fully cured I will apply a bit more "final polish" compound to the unpainted surfaces.

[Brian Rupnow]

I'm down to the point where everything is painted and polished. I had hoped to capture some of the brilliant shine on the brass, but it doesn't show up very well in this picture.---And---when I went to take another shot I got the "Charge Battery" message on my digital camera. Reassembly should be a fairly simple exercise, but I just got a call from one of my customers and that will eat up my afternoon. Tomorrow I will put it all back together. When it's all blown apart like this, there aren't very many pieces, are there.

[Brian Rupnow]

The painting and polishing is finished, and the engine is reassembled. I'm very happy with the way this engine turned out. I've built so many engines over this past winter that I hope not to start anything else between now and fall. Thank you to the people who have followed this build on the forum.---Brian
<a href="https://www.youtube.com/watch?v=8Mjw4YLCt9E" target="_blank">http://www.youtube.com/watch?v=8Mjw4YLCt9E</a>

[crueby]

Excellent engine Brian, thanks for having us along for the ride!

 

[NickG]

Looks great in its paint Brian, another interesting engine.


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[Kim]

I'll say!  This one is fascinating, as are all of your engines. They always have a hook to them.
Nice video too.
Kim 

[Tennessee Whiskey]

Engine looks and runs great Brian. Be sure and keep us up to date on your gardening projects on the “gardening thread” since you aren’t going to be doing anymore engines till the fall 

Cletus

[Craig DeShong]

Nice  looking model Brian, and it runs good to 

[Dave Otto]

Nice job Brian, she looks and runs great!


Dave

[bent]

Interesting the way it turned out.

[b.lindsey]

Great runner and very nicely finished too Brian. Well done!!

Bill

[Brian Rupnow]

About a week ago I ordered an 8" buffing wheel and a buff rake from Eastwood. Of course I was too impatient to wait another week to finish polishing the engine parts, so I bought a 6" buffing wheel locally to get the job done. Today, my order showed up. My God--What a ferocious looking beast that buff rake is!! I've never had one before now, so wasn't sure exactly what to expect. This thing looks like it would scrape the barnacles off the Titanic.

[b.lindsey]

Brian, it that beast supposed to just fluff up the buff and remove excess rouge etc. or what? Have never tried one. Would be curious as to before and after pics.

Bill

[crueby]

Over time, the buff gets clogged up and hard with rouge and metal, the rake cleans it out and refluffs the wheel, just like a diamond dresser does on a grinding wheel. Mine looks a lot like that one. Don't need to use it very often, but it gets the wheel back to useful again. It does remove some of the outer layer of cloth. I use it on a cloth layer wheel, not sure about on a hard felt wheel. Careful of the angle you use it at, so it doesnt dig in and get grapped.

[Brian Rupnow]

I will start a new thread with before and after pictures. Some of my buffs are just terrible right now. Really matted, full of brass and aluminum particles, just awful. I have been thinking about buying a buff-rake for about 25 years but have never actually had one. I don't want to try it right now, because my lathe and machine shop are clean as a whistle, and I just know this is going to be a filthy job.