'Knocking' in petrol engines is caused by petrols low flashpoint - its high combustibility.
The octane rating is too low for the compression.
The engine will knock.
Lead dust added to the intake charge will also reduce knock with various hydrocarbon fuels. Manganese compounds are also used to reduce knock with petrol
Lead was added to petrol as an anti-knock agent to improve engine performance. It prevented engine knocking or pinging, which is a metallic pinging noise that can occur in an engine when fuel ignites unevenly. Lead was phased out of petrol due to its harmful effects on human health and the environment.
The knock sensor just advances and retards the engine timing only. If there is a noise in the engine then you have engine are valve train problems. The knock sensor will not make the engine knock.
This is controlled by a knock sensor.
I have a recent engine knock on my 91 escort started out intermittant. I have a recent engine knock on my 91 escort started out intermittant.
Lead is no longer added to petrol because it added to both air pollution and general health risks. It used to be added for help in maintaining the general "health" of an engine's valves as well as reducing engine knocking.
unleaded petrol is 91 octane petrol with not a trace of anti knock compound(tetra ethyl lead)...so that it produces no harmful emissions
knocking as in spark knock? or engine knock? spark knock is adjusted through a knock sensor via ignition timing. eng. knock is due to brg. knock as in low oil pressure or sluge in engine or just a tired motor
NO it will not. If you have a knocking sound then you have trouble inside of the engine.
No. It only senses engine vibration/knock.
Severe spark knock (pinging) can damage the engine. Knock sensors detect spark knock (pinging) in the engine. They send that info to the ECM (Engine Control Module). The ECM makes temporary adjustments in engine timing to eliminate the spark knock.