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You have to be really careful with cheap lathe specifications. The Vevor lathe shows a bed lenght of 29.5" but doesn't say that is between centers. My 7X14 lathe has a bed length of 19.5" but the tailstock takes up part of that to hold the center.

This might not answer your question but this is a question asked by a member on "The Hobby Machinist" back in 2014...

My opinion is that you start to save money now to buy a more expensive lathe. I feel that neither of those lathes are really suitable for what you want to do. Of the 2 the Vevor is the best but some of the information is suspicious. Most often lathe sizes are specified as swing over bed (the...

No, they are completely different sizes.

The mills make the smoothest cuts when they are used in climb milling. My mill has about 3 thousands of backlash. If the cutter I am using requires a one thousandth of an inch per revolution and I try climb milling, at some point the cutter will pull the work toward it that 3 thousandths of an...

I like it when the photographer puts some kind of measuring device in the picture so I can see the scale of the object. Photographed in the right circumstances a full size engine and a minature look the same.

Consider using a labyrinth seal for the center seal. Those do not require the crank to be pressed apart because they don't wear out.

Snowmobiles have used inline twin or even triples of 2 stroke engines with a single crankshaft. I think they avoided a V-engine for space concerns rather than technical problems.

Stepper motors for your milling machine are specified by size (NEMA17, NEMA23, etc.) which specifies the mounting hole spacing and their holding torque. Most often you see the steps per revolution (most often 200). They may have 4 wires or 6. Lots for you to learn about. When I decided to...

Having the valves in the block requires more space and limits the compression ratio. By moving them to the head directly above the piston you also have less exposed metal that is robbing the engine of heat. The higher the compression and the higher the temperature the engine can run at, the...

I have a Century AC/DC welder. The day after I got it, I switched it to DC and have never switched it back. A few years ago I was intrigued by the cheap inverter welders, DC only, 200 amp max. The Century welder has not been switched on since. The inverter welder is so light weight that I...

My 3D prints are a bit more basic but using CAD you need to create the 'drawing" and then from there create a "mesh" that lets you save the drawing as an .stl file which your slicer can then take and create gcode from. I've been doing my drawing with FreeCAD and it was a chore to find out how...

Gosh, it's too bad that tachometers are so expensive so you can't get one to test if the speed only changes in increments of 100...

Not when you are navigating at night with someone else's compass. I went farther into the woods when I thought I was exiting.

It is very likely that your new computer will have a PCIE slot onboard so you can get a parallel port for that. Verify that the new computer does have the PCIE slot and talk to the supplier about the parallel port.

In the second picture there are two lathe chucks. The front one appears to be an independent 4 jaw but I can't see enough to be sure. The farther back is a chuck too but I can't see enough to tell just what kind.

Now that we have beat the subject to near death, instead of Stellite I would probably just go with mild steel as it would be easier to work with and still probably outlast the rest of the Briggs & Stratton. :p

Stellite seems to be the proper metal for exhaust valve seats. Now you have to decide if the engine is worth the cost and where to get the stellite.

If...If the gear you are looking for really has a pressure angle of 14.5 and no cutters are readily available, why not get a 20 degree pressure angle and cut both gears so they match. It won't take a lot longer to cut 2 gears, less time than ordering a 14.5 pressure angle cutter.

What is the material the original gear is made from? Do you have similar or better material available? What tools do you have that would let you make the gear?