Technical Spark Plug Socket Size?

[chenry]

Trying to put a small toolkit together, what size spark plug socket do I need? It's a 1969 500L with a 650cc engine. Thanks!

 

[the hobbler]

Trying to put a small toolkit together, what size spark plug socket do I need? It's a 1969 500L with a 650cc engine. Thanks!

You need a 21mm spark plug socket, standard size for a 14mm spark plug---you might find it easier to use if you use a seperate plug-socket, a medium sized extension and a ratchet---3/8 drive will be as big as you need. When fitting the rear spark-plug (flywheel end), the plug socket can be a bugger to take off the plug if you push the plug fully into the rubber holder in the socket, so only push it in far enough that the rubber in the socket only JUST grabs the spark-plug.

 

[chenry]

You need a 21mm spark plug socket, standard size for a 14mm spark plug---you might find it easier to use if you use a seperate plug-socket, a medium sized extension and a ratchet---3/8 drive will be as big as you need. When fitting the rear spark-plug (flywheel end), the plug socket can be a bugger to take off the plug if you push the plug fully into the rubber holder in the socket, so only push it in far enough that the rubber in the socket only JUST grabs the spark-plug.

Thank you! Much appreciated.