Re: Fuel

Posted by TxGoat On 2024/6/27 6:08:10

Pinging can be caused by a lean mixture, improper initial timing, distributor issues, cooling system problems, improper spark plug heat range or very worn plugs, valve issues, or very low octane fuel. Ethanol fuel will not normally contribute to pinging.
Air leaks in the intake at manifold or carburetor gaskets or any vacuum connection, including the vacuum booster in the fuel pump, can cause pinging. A corroded water distribution tube in the block can also cause it.