It is a 5/8 spark plug socket and if you use a regular one you will need a 6" extension. As for special instructions....

It is important to only change your plugs when the engine is COLD. As in overnight cold. And don't change them unless you have a torque wrench as they get torqued to 20 ft/lbs. I also put a dab of anti-seize on the plugs when I install them.

There have been numerous reports of ejected plugs and ruined heads because of improperly installed plugs. I check torque every 5000 miles each time I change the oil and have never had a problem.

As for what plugs are best, I will leave that to all the others with opinions on that.

Rich

 

thanks for your help.why do some say it takes a 14mm 12 hex socket.

 

Don't know. I use a 5/8" 6 point extended length spark plug socket. But a regular length socket would work fine too.

Rich

 

thanks

 

You can also get a deep dwell socket that is made for spark plugs.
I recomend Brisk plugs myself.

 

Make sure you torque them when they go back in a blown out plug is an expensive fix.

 

thanks for all your help guys. i just purchased a set of brisk silver plugs and a set of 10.2 mm performance wires and when they arrive will install them. wish me luck. they are located on top of engine should be a piece of cake. should i use a 16mm socket or a 5/8 socket.

 

i just purchased a new msd coil. can anyone give me advice on how much gap should be on my brisk silver plugs on my r50 cooper,05 model.

 

16 mm and 5/8 are almost the same size -- the 5/8 works fine.