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Not a expert but if I snug up those bolts it also stops the saddle moving on my lathe. I have a background project to make shims so the bolts can be tight. Gary

Ray I have thought that a model of a diesel pile driver would be interesting Gary

Quin on blondihacks

What you need is isopropyl alcohol it is 99% alcohol and pretty widely available.

Same experience for me tons of friction a great update Gary

No cast iron running in cast iron. Looked amazing.

Yes took apart the spindle, not really that big a deal. Used it as a opportunity to clean the oil wells and the thrust bearing. Runs like a champ and is great to have no more slipping belt. Gary

The one I bought is 7PK1272 it is just under 1 inch wide. I measured the existing belt and went to NAPA and found a length that was close. Please don't use the length I chose without checking because my motor installation is not the standard. Gary

I use one on my table saw but don't see how they would make a flat belt. Gary

I have been running my 9inch on the rib side has lots of traction, but but reference is the plastic belt with no traction.

My lathe is a 9c they are great teaching tool. I just recently replaced the belt with a serpentine (automotive alternator) boy did the lack belt slip change things, I also made a er32 collet chunk that threads onto the spindle.

That's how governors work on lots of small air cooled engines like Briggs and Stratton. You could put one on your fan cooled engine. Another opertunity to select the perfect spring.

Where are you?

I have used brazing rod for small suff I have (almost gone) some 6mm bare rod works for me Gary

Have a great summer Brian. I for one will miss having one of your engine build adventures to follow. Gary

Makes it look like it is used.

I know where there are 8 full scale engines one runs on close to running the rest in storage.

Does anyone actually check runout when holding a part in a hole expanding the jaws of the chuck? I have just been making a part that way, no idea as to the concentricity and it doesn't matter for this part but certainly uses the other side of the scroll teeth.

The sign of a well planned job is that nothing exciting happens.

Yes, you need the correct tap to prepare the hole for the coil and the driver tool to engage the tang at the bottom of the coil to turn it into the hole then you use a punch to knock the tang off.