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Lot's of air pissing past the piston rings. I only honed the cylinders...I never bored them which may explain all of the air leaking past the rings. I also ground the gap in the rings by hand. The rings were installed "as-is" but would bind up when they could not compress enough. I'm going to...

So I ground the piston rings down and installed them...but with 2 rings per piston we have zero compression. I can hear air leaking from everywhere. Sooooooooo next will be trying to find all the air leaks which is a pain but has to be done. Spark is strong, timing seems right, and the...

Thanks guys! If I don't post about this stuff right when it happens I'm going to forget what we machined in a week. I love sharing our progress but this also helps me go back and review what we've accomplished. Some of the ignition pictures. I'm using 2 Model T coils and a 12V battery...

Got the engine timed and wired. When installing the piston rings into the cylinder they jam up. I have to grind the gap a bit more on each ring. Maybe this weekend. Very close now.

Finally built the skid for it.

Wow! I just realized I never followed up with this. I restored the entire engine...took it completely apart, coated the gas tank and other fuel mating parts with Red-Kote, recharged the magnet, new plug and wire, and all new gaskets. The fuel pick-up tube was replaced also. The carb was...

Awesome!!! I've got an early upright, an early 82, and a couple great 92's. I would love to do a half scale version of each one! Great job on your fruit jar engine...I would love one for my collection.

https://youtu.be/SmpQsvpZfwk

I ended up tapping a 3/8" NPT brass pipe plug for an M12x1.25 spark plug. The cavity on the inside of the pipe plug was near to size for the tap drill for an M12...so the tap is a deep as the length of the plug...so lots of thread for a nice tight fit on the spark plug. I like the brass pipe...

Thanks Ross! Yes it is tapped for 3/8 NPT...if I cannot easily find one I will have to make an adapter.

Thanks Ross...a few more things to fix before its on the ground but very close! I need to find spark plugs with a 3/8 NPT thread...and make the intake valves. Then timing is a big pain. But hopefully this summer.

Muffler attached and lightly tightened in place...

Thanks guys! I'm going to read through all of these responses and share them with my students. I trammed the mill head and squared the vise in advance. The hole was drilled and bored to 0.750.

I have a part with a 0.750 diameter hole I need to pick up. I used a fairly new test indicator, stuffed it into an R8 collet, and proceeded to find the center (like I have done many times). But my question is, how the heck do you know if you are at each quadrant perfectly? How do you know if...

I finally reamed and pinned the exhaust valve assembly.

He used straight plain bronze bearings on the Quadricycle...the angular contact bearings did not come until the Model-T. Actually the first few years of the Model-T had straight roller bearings and then they upgraded to tapered roller bearings. At least that is what I have read...a Model-T buff...

Pictures of the grease fittings we added to the front axles. I held the front axle in a 5C collet and collet block, added a spotface to seat the fitting, drilled and tapped for 1/4"-28, then cross drilled to allow grease to enter cavity of hub. It all came out perfectly. Also a picture of...

Thanks again to everyone. The Quadricycle went straight back onto the dolly within 10 minutes. We pushed it around and the front right wheel seized immediately. Upon inspection we noticed a few high spots on the axle that created grooves in the bronze bushings and dug in pretty deep. I removed...

This one is pretty good. He talks about his childhood and seeing his first engine.

I'll check the books I have...I'm almost positive there is a paragraph or two related to his first engine. I'll post what I find.