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Use shaft of drill (where the chuck is holding the shaft on the drill) or steel pin made from lathe to measure diameter in the hole. Micrometer to measure outer diameter. We can use steel ball with known size to measure hole diameter.

Stainless steel is not ideal as an injection nozzle needle. Use steel because it is harder than stainless steel and easier to grind until the nozzle needle is tight to the nozzle needle seat. Use the same material for both parts due to thermal expansion, which means that it does not leak in...

As rule the diesel engine has same length to all injectors in a multiple cylinders engine due the pressure in the pipeline must be same. If the length of the pipeline is difference, it will affect the timing and the pressure in the short pipe is higher than the longer pipe due expansion of pipe...

Quickly made to forget..😄 Hope all will be in order..😊

Bolts with low tensile strength 8.8 were used? Use bolts with high tensile strength 12.9. Tighten with a torque wrench as indicated in the table. The tensile strength indicates the breaking point in the material of the bolt, while the yield point indicates how much the material in the bolt...

Does the injection pump lose pressure when the engine warms up? It sounds like you have material with high thermal expansion that the pump loses pressure. What material did you use for the injection pump? The same with the injection nozzle must have at least thermal expansion so as not to...

The pump parts who are using as diesel pump must be clean and without metal particles or it will scratch the surfaces who lead to leakage. Better to clean up in the ultrasonic cleaner to remove the dirty particles after working with the pump parts in work shop after the parts is lapped/grinded...

In other words: Blood poisoning!

Semi-desel engine is a hot bulb engine who has low compression and using the hot bulb to ignite the fuel.

I think you misunderstood me. Also not measure per pump stroke and check quantity. So you have to pump 300 times (300 revolutions on the pump shaft of the injection pump) and measure the amount of fuel on each measuring cup of the syringe without piston and compare with all the pumps delivering...

Check the timing must be exactly same for each pumps to be sure the each get right timing, since the engine is 4 cylinder then it begins to end in timing 0-90-180-270. Use degree disc on the fuel injection pump and check carefully when the pump begins to pumping the fuel 0-90-180-270. If fault...

Nerd1000, ..You can't make perfect fit, let running-in the engine improve the tolerance between the bearings and shafts to a perfect fit who are impossible to make with the tools.

To syncronize the carburettors: Put the 2 mm rod in each carburettors and shut the drums and adjust all linkages. Then remove the rods and check all drums are moving in same time. Main needle in same counts of turns, same with idling mixture screw. Hope we are to see your engine is started up...

I has used cam made of unhardened silver steel ( drill rod steel) and rocker arm of cast iron in my Webster engine. Last so well without problems. These is lubricated with motor oil.

Or we call it "Tufnol" :) https://tufnol.com/sectors/electrical/ Tufnol Whale rod is available in brown (light tan colour) and in diameters ranging from 6mm up to 100mm. https://www.directplastics.co.uk/tufnol-rod

To running test for each cylinder: Remove the two connecting rod to other cylinder who is not in use (due less load caused by friction), the cylinder who is under test/adjusting timing must have connecting rod to run the steam engine. Also you are adjusting/running the triple steam engine as if...

See here..Viola 😃 👌

What is most important is the charging time of the magnetism in the low-voltage coil in milliseconds before the magnetism collapses and induces the high-voltage coil and gives enough strong spark when the engine uses one and the same coil instead of 3 coils if you run the engine at high rpm...

Seeing that there is a greater distance that there is zero chance of the spark jumping to the nearest contact and setting the spark in the wrong plug during compression. This is how Ferrari had already thought when they use one and the same distributor cap for several cylinders that are...

In the distributor cap, it seems until the contacts are close together that the spark from the rotor can jump over the other contact to one of the cylinders that should not have ignition while under compression. Shouldn't there be a greater distance between the contacts so that the spark does...