Where are the spark plugs on a Mazda MX 5?
The spark plugs sit on top of the cylinders on a MX-5. Looking at the engine you can see a set of spark plug leads running down the engine with 4 rubber boots in the centre of the engine’s rocker cover. The spark plugs are set about 80mm under those rubber boots.
How does a spark plug work on a Miata?
A spark plug is designed to receive an electrical current at its top and pass the current down into the tip (or electrode) which is inside the engine cylinder. When the electrical charge reaches the tip of the electrode it is forced to arc across the gap between the electrode and the side terminal.
Where can I get an ignition coil for my Miata?
Fortunately, we found a coil assembly from Mazmart in Atlanta for only $125. Now the car runs fine. The point is, don’t do a compression check without either pulling the connectors from the coils or keeping a spark plug in the wire while turning over the engine.
Why are the ignition wires on my Miata not working?
Common Problem! The factory ignition wires on the Miata only seem to last between 30,000 and 50,000 miles. If you are experiencing misfiring and hesitation and you haven’t changed your wires, this is most likely the cause. Change the wires! In case you forget which plugs is which, refer to the firing order diagram below.
How big are the spark plugs on a Mazda Miata?
The 14mm thread diameter and alloy head mean the spark plug torque is 18.0~21.6 lb-ft for your MX-5. Make sure the engine is cool before removing of replacing the spark plugs.
Fortunately, we found a coil assembly from Mazmart in Atlanta for only $125. Now the car runs fine. The point is, don’t do a compression check without either pulling the connectors from the coils or keeping a spark plug in the wire while turning over the engine.
Common Problem! The factory ignition wires on the Miata only seem to last between 30,000 and 50,000 miles. If you are experiencing misfiring and hesitation and you haven’t changed your wires, this is most likely the cause. Change the wires! In case you forget which plugs is which, refer to the firing order diagram below.
How do you change the spark plugs on a Mazda?
Install new spark plugs on your Mazda. Tighten the spark plug finger-tight until it reaches the cylinder head. Torque the spark plugs to 20 ft. lb. Verify torque value for your engine. Reinstall Ignition Coils. Reinstall coils and connect the electrical connectors. Replace the engine cover.