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And what good are piston rings without pistons... The ring grooves came out slightly underszie and the rings woundn't fit. I ended up grinding the rings to thickness on my surface grinder. Hand lapping on sandpaper was taking way too long! I broke two rings grinding them until I figured...

This is one of those questions nobody can agree on. Like what color should a car be? That said, the three best things I have ever used are Alumtap, Boelube and Tap Magic Gold (not the Pro Tap which is awful stuff). [EDITED] I forgot another favorite: Mistic Metal Mover John

That's the thing Luc! Much nicer than the one I have but it's exactly what I was trying to describe. Thanks John

For my Panther Pup build, I have made many design chnages. One of which was to add a bearing to the ends of the connecting rods. I'm in the middle of making the pistons now and am wondering what's best... 1) Wrist pin pressed into the connecting rod small end. 2) Wrist pin pressed into the...

Scissors. To make holes, a a punch and die. The type I mean (I don't know the name of) has a punch of whatever diameter you want the hole to be. The material is placed on a plate that has a hole that matches the punch. Harbor Freight has them. Don't know what equivalent you have down under...

This morning I made piston rings. I thought they'd be hard to make, but it was actually quite easy. Starting with cast iron bar, I turned the OD to 1.0005 and ID to 0.920 (The engine is a 1.000 inch bore with .898 dia ring grooves). I then parted off rings 0.067 thick. They were lapped on...

A few more tapped and clearance holes and I'll have 4 cylinders done... John

Completed the timer and points today... Points are Standard AL-5661X. John

Yes it will not be electronic.... Despite having designed, with Dave Sage, the ignition circuit described here: http://www.homemodelenginemachinist.com/showthread.php?t=20415 and published in Model Engine Builder (issue 34), I'm going old school for this build. There's a certain romance to...

More progress today and yesterday night. Made the distributor mounting plate and the timer body. Arcs were machined using my mill DRO's arc function which I hadn't used before. The radius over the top of the mounting plate and the radius around the clamp were both made like this. I was too lazy...

Thanks everyone! I'll keep up the posts. I ordered aluminum castings for the crankcase from LMS and they came day before yesterday. The machining of those should be an adventure... John

Norm, If you're interested in what was revised and changed, I can share my drawings with you showing the changes after each part is built and I can validate the design... John

Just wondering if anyone is following this thread apart from SteveHuckSS396.... I'm guessing y'all are just quiet so as to not clutter up the build posts... John

Tonight I made a cast iron (G2 Durabar) cylinder sleeve for the cylinder fabricated yesterday. The sleeve was made 0.003 in. oversize. To install the liner, the aluminum cylinder was heated with a propane torch and the sleeve dropped right in. When cool, it locked in place. The sleeve is now in...

Success! After an adventure with an import parting blade holder I got it made! 3 more to go...

Alas no. Not even close. The holes don't even touch the OD. If I bring the holes inboard in the head, the holes break through into the intake and exhaust passages. I started making a new one. I did the square portions first and did the lathe work after. All I have to do is cut the fins and I'm...

As promised, here is the cylinder and the goof... The ends of the cylinder are supposed to be square in shape. I figured I'd do all the lathe work, the square the ends in the mill... As you can see, I goofed and didn't leave enough material to make the ends square! The print scale is 1:1...

Yesterday I finished the distributor rotor. See pics below... Today I made a cylinder, sort of... Next post I'll show a major goof on an otherwise perfect cylinder... John

After finishing the Solidworks model (http://www.homemodelenginemachinist.com/showthread.php?t=25266), I generated working drawings for the distributor and started cutting. An odd part to start with? Well yes. But, I made the distributor parts out of G10 and G11 fiberglass. Messy stuff to work...

Hi Steve, I am interested! PM sent. John