Checking spark plugs. Homemade stand.

Today, dear readers, I want to offer you the design of a simple stand for testing spark plugs, and at the end of the article I will demonstrate in a video how it all works

I can’t show the assembly process, because ... this is a working exhibit that was assembled 10 years ago ...

Even if you do not have all these knots at hand to exactly repeat the design, perhaps my homemade work will inspire you to make something similar from your arsenal.

The main element of the stand, which generates and distributes high voltage, is a tractor magneto.

The second important element of the stand is the drive, which is a gearbox of a manual grinder (an ancient thing). This gearbox operates in multiplier mode, i.e. increases the speed of the output shaft while reducing the torque.

The design of this gearbox has a clamp that allows you to install the stand where it is needed today, and then it is easy to dismantle and put it on the shelf until the next tests.

The gearbox shaft and the magneto shaft are connected using a rubber tube of a suitable diameter.

This technical solution speeds up the assembly / disassembly of the stand and, most importantly, compensates for misalignment of the shafts (they do not need to be centered).

A galvanized sheet is fixed on the magneto body, in which a groove is cut for quick installation and removal of the tested candle.

The candle testing process is as follows:

• Clamp the stand to the edge of the table
• Place the candle in the galvanized slot
• Put on the cap of the high-voltage magneto wire
• Turn the gear knob - multiplier
• A spark is periodically formed between the electrodes of the candle.

How it all works - you can watch the video: