| Author | Message | ||
     Riclyd |
Since english in't my mothers toung I'm not that into technical terms so I need some help with understanding one. What is pinging? | ||
| Chainsaw |
That would be sending a private message via email in the user's profile. | ||
| Wahmbush |
He might be referring to the pinging that a 12 and sometimes a 9 may make... | ||
| Riclyd |
Yeah Wahmbush, that's what I wounder about. (Message edited by riclyd on October 07, 2005) | ||
| Indy_bueller |
Its a noise that your engine can make if you have poor quality gas or an ignition system isn't working well. Sounds similar to a diesel engine. | ||
| Henrik |
As technical as I can make it; pinging is the knocking sound your motor makes when/if the shot of air/fuel mixture currently in the cylinder ignites prior to the spark plug sparking. It'll often happen if the bike is running hot (leaking intake seals for instance), thus creating spots on the piston or elsewhere in the combustion chamber hot enough to ignite the mixture. The wave front of the pre-ignited mixture will collide with the walls of the combustion chamber as well as the wave front created by the mixture ignited by the spark plug. This collision (and there is more to it than I'm able to explain correctly) causes the sound - like ticking/knocking we call pinging, detonation or pre-ignition and I believe it's referred to as spark knock as well (I may be wrong about that). I've found on tubers, that it will in particular happen when you whack open the throttle at lower RPM, which causes lower air velocity through the carb leading to poor atomization of fuel and poor mixing of air/fuel. Detonation can also be caused by high compression - and I'm sure there are more causes and better explanations out there  The octane rating of gas is an indication of how resistant to detonation the fuel is - which is why some high compression motors are happier with a higher octane gas. Aside from my rambling, the important thing to remember about pinging is, that it's *really* bad for your motor. It'll burn holes in pistons before you know it, and the detonation wave fronts put a tremendous stress on the motor bottom end. If it pings, find out why and fix it. Henrik | ||
| Riclyd |
Thanks to all of you for your answers, especially Henrik for taking his time to make such a good explenation, that even a child can understand. Thanks |
