Tag Archives: replacing spark plugs

Increased Sparkplug Maintenance Intervals

image of iridium spark plug

Iridium Spark Plug

Can increased spark plug maintenance intervals put people out of work? We live in a changing world and sometimes we don’t realize what a big impact seemingly small changes have in our lives. When I got into the auto repair business there was plenty of work to go around. This has changed drastically over the last 2 decades. Maintenance intervals have increased and the car doesn’t need as much attention as it use to.

Today I’m going to talk about spark plug maintenance in particular but you could also add to the list of things that changed the automotive maintenance business, synthetic engine oil, extended life anti-freeze, new transmission technology requiring less fluid and filter changes and direct ignition systems that did away with the distributor cap and rotor.

But let’s talk about spark plugs. When you get right down to it a spark plug provides an electrical lightning bolt that ignites the air fuel mixture in the combustion chamber on command. Voltage surges supplied from the coil travel down spark plug wires to the correct plug. Continue reading

Replacing Spark Plugs

Denso Spark Plugs

Denso Spark Plugs

Replacing spark plugs has always been a favorite task of do-it-yourself auto mechanics. The interesting thing about this maintenance operation is that on some vehicles it is fun and easy.

On other automobiles the task is extremely difficult and sometimes the path of success is plagued with extreme problems that could lead to pulling the cylinder head.

Sometimes when spark plugs are removed from a cylinder head the threads will have traces of metal on them.

Each spark plug removed should be numbered with the cylinder it was removed from and inspected thoroughly for this type of thread damage. This type of car problem happens more often on engines that use aluminum cylinder heads.

If you run into this problem when performing your own sparkplug maintenance it is highly recommended to correct the condition before reinstalling the plugs. Patience and care at this point can save you from major auto repairs down the road. Continue reading