From what I've read, too hot of plugs can cause that. Low octane causing pinging, pre-ignition, can cause that. Some say running too lean causes pinging. I'm sure timing plays a part too. High compresssion pistons cause it too. Pinging blows holes in piston. New cars use ultra sonic mics to alter timing, EGR, perhaps fuel to cool thing off a littlt to prevent pinging on low octane fuels.
I had a 62 Jag, 9.5:1 compression,that needed high octane leaded gas or it would ping. I had to retard the spark to lessen the pinging. I let the car sit. Sold it 11 years ago for 5 times what I paid for it.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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