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Adjustable in length spark plug wrench

Importance for an adjustable in length spark plug wrench for Porsche 911 owners

Porsche 911 enthusiast, are you looking for the best spark plug socket wrench to help maintain your ride? As a seasoned mechanic, I’ve had my fair share of experiences with different tools, and I can confidently say that an adjustable in length spark plug wrench is the way to go. Let me start by explaining why a regular spark plug socket wrench might not always do the job. 

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Porsche 911 engines have a unique design that can make accessing the spark plugs a bit tricky. The engine’s placement and configuration can cause the spark plugs to be in hard-to-reach areas. 

Most spark plug wrenches don’t fit well for all six cylinders on a classic Porsche 911. Most spark plug sockets don’t fit either, they are either too short or too long and if you want to use an extension, then that too is either too short or too long. I’ve tried a number of spark plug tools and I’ve finally found a tool that is perfect for all six cylinders and very easy to use. And by the way, it’s not just the ideal tool for a Porsche 911, it works beautifully on all of my cars. 

It’s an adjustable in length spark plug wrench. It can adapt to different angles and depths, making it easier to reach all of the spark plugs of a Porsche 911. Here it is:

Hazet spark plug wrench

3 adjustment options in terms of length

Hazet spark plug wrench

Longest adjustment of the Hazet 2505-2 spark plug wrench

Hazet spark plug wrench

The perfect spark plug wrench, adjustable length, three different lengths can be locked in, but it will work in all the lengths in between as well. It’s got a 3/8″ drive and is the recommended tool for all Porsche 911. A friend of mine who’s into more modern Porsche 911s like me, such as the 964 and 993 model, uses the exact same tool and he’s quite happy with it as well.

Best spark plugs for a vintage Porsche 911

There is no straight answer to the question, which spark plug is the best for a Porsche 911. It really depends on the purpose of the car. Means, is it a daily driver street car or a track car? What kind of engine is in the car? Compression? Regular, Ethanol or Race gas?

Let’s start with a regular daily driver. Depending on the temperature you’re in, you might use a grade 6 or 7 spark plug. I run both of my Carrera 3.o with standard CIS and regular fuel with the NGK Spark Plug Iridium BPR7EIX. The Hotrod 3.0 SC engine with PMO 40s uses the same spark plug. Only my race 911 uses a colder NGK spark plug, an NGK 9. I have a 12.5:1 compression and the engine revs to 8000 RPM, so better one level too cold than too hot. Takes a while for the engine to idle well when cold. But once there is some heat in the heads, it runs perfect. 

How to change spark plugs on a Porsche 911?

On the right side, the ignition cables and thus spark plugs are easily accessible. It’s a bit harder on the left side. First, the two air hoses on the left side, respectively the driver’s side have to be removed. To do this, loosen the two hose clamps and push the two air hoses aside until the ignition cables on the left side can be reached. Then remove the respective ignition cables and then remove the spark plugs by turning the spark plugs with the spark plug wrench counterclockwise to loosen. Then put the new spark plugs back in with the spark plug wrench. Hand-tighten and put the wires back on until the click sound is heard. Then re-attach the air hoses and tighten the hose clamps. Most experts recommend replacing the spark plugs every 7500mls (or app 12500km). In the same rhythm, I also adjust the valves and thus always have a very good result.

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