What should the gap be on my spark plugs?

What should the gap be on my spark plugs?

For most racing applications, you usually want the plug gap to be between 0.020 and 0.040 of an inch. Most engine builders seem to settle around 0.035 of an inch. Factors such as the type of ignition you run, cylinder heads, fuel and even timing can affect how much gap will work best for you.

What will happen if the spark plug gap is too wide?

An engine that hesitates, or stumbles, upon acceleration is often the result of incorrectly gapped spark plugs. If spark plugs are gapped too wide, the ignition spark loses some of its strength as it crosses the spark plug gaps. This can result in engine hesitation.

How often should you replace spark plugs BMW?

every 60,000 miles
In general, a spark plug can last up to 80,000 miles without causing trouble. However, it also depends on the type of spark plug, and the type of engine your BMW has. In most modern BMWs, manufactured after 2010 with the N20 or N55 engines, it is required to change spark plugs every 60,000 miles.

How often do spark plugs need to be replaced on BMW E30?

Spark plugs on BMW e30 should be replaced every 30,000 miles as a part of maintenance schedule (Inspection II). Although modern engines have high spark voltages so that even an old plug could work adequately, they do wear out and must be replaced.

Where is the ECU connector on a BMW?

To access it open your glove box and undo the two screws holding the plastic cover that is at the “ceiling” of the glove box compartment, under there you will find the ECU and the Connector. Interesting fact: The 153 Motronic 1.1 ECU is directly swappable (without any modification or otherwise) with all motronic 1.3 ECU’s.

What’s the gap on a BMW 325 6 cylinder?

The factory gap for the 325 6 cylinder is 0.7mm or 0.027 inches. Use the gapping tool to carefully bend the contact arm either closer to or away from the electrode to adjust the gap.

Where can I get an ignition gaper for MY BMW?

Most ignition gapers are available at your local auto parts store for usually under a buck. Check the gap by sliding the tool in between the contact arm and the electrode, and slide it around until it drags slightly, now read the mark on the side.