Recent content by timo_gross

Made the fins. Checked the gear mesh. Small gear was re-done (what 6 times? :) ). I made the flywheel from a disc of round stock that I found on the pile, and the flywheelpulley came from a piece of 2" bar stock. Flywheelbushing I skipped yesterday. It is still pending..... Cutting the fins...

Haha, poor you! Did you already cut the other part? 30% of my mistakes are incompetence, 80% impatience, 10% poor or wrong equipment and at least 20% someone elses fault. The remaining 70% is casued by my poor math performance and insufficient thinking ahead. :cool: In this case it is obviously...

Saturday afternoon, I am not very fast. Slowly doing one by one part. (mislpacing tools and braking M2 taps 😥) The cylinder heads are only "half done". Waiting for a tap to come that has 1/4-32 TPI. I did not cut them off. Who knows if the extra stock is useful when drilling the holes for on...

That is a nice collection of cross sections. Were those domed pistons made from cast iron? My guess would have been that this is related to pattern removal and beeing able to cast concentric round pieces easy.

As long as I can grind it all to a flat I call it good (enough)! :cool: ( Someone is making fun of my welding skills? I put a mask on his head and a torch in his left hand; switch on the welder and wait what comes up next :cool:. Only once it resulted in a nice TIG weld. Seriously, if "good...

Not very "model-engine" :cool: . I occasionally saw a Lanz running and it always nice to see."Marcus Lanz" is all I get when I search for "Lanz" on Youtube. That is funny and sad at the same time. p.s. what is the meaning of "Glühkopfzündung" with regard to TV-talk shows?

Or buy a welding robot and get one of your grandchildren into programming. p.s. I bought a cheap chinese TIG welder a while ago. It confirms what was said above about practice and muscle memory. But... my horrible welds (including inclusion, and cooling cracks) are often still doing the job...

Very inspiring, that those old projects are "re-visited" and not lost. Keep pushing it.

I was not confident about the soldering of cast iron (maybe some other time). The crank case will be made from aluminium, so I thought I give threading a try. The bore was quite bad after turning. I reamed it with an adjustable hand reamer, hopefully good enoug. The wall thickness is not...

I admit I overlooked that. Depending on required precision I think to get something usable "is possible". Some handfiling and fitting will be required. I am curious how the OP will solve it :cool:

Wait a minute! What is an aircraft bearing? (serious question). I would a) grab tube of adequate size and material b) cut tube in two halfes @ desired angle c) make pin that fits inside tube c) put tube cut-offs on pin d) pin/glue/weld/solder or whatever the three pieces together. Done...

I made the carburetor body on Monday. Throttle and jet took a while, small stuff. The needle is not done yet. Is that a part that needs to be moved a lot? I could make it from a cap head screw, but it would require a hex key to adjust. Or I have to make the complete thing. Next up the...

No really there seems to be a big F on it. But I think while I was trying to get a decent picture there was an Explanation for the mystery posted. (still no idea where it came from) Yes, approx. 6.5 mm.

What a mess. I use 5/127" or decimal fractions of it :). Found a drill with an F in my workshop yesterday. No idea why I have it or who gave it to me?

I probably would have bought an angle plate to machine the angle plate :). Makes no sense? ....yes that happens when I make my buying decisions.... Rubbish idea: mill slots first, weld another angle plate and then you can clamp one angle plate to the other angle plate. Improve the surfaces as...