Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

hi.
iv got a vauxhall corsa b 1997. i brought some new spark plugs (21mm) i have 16mm spark plugs in at the moment. i can remove the 16mm plugs but i cannot get the 21mm socket down the metal cylinder to fit on the spark plug.
Any idea how i do it? can i remove the metal cylinders?

thank you.

sounds like you got the wrong sparkplugs.

why have you got 21mm plugs when you know that the ones in at the moment are 16??

you'll either have to buy a new engine to fit the spark plugs, or take them back and buy spark plugs to fit the engine you've already got.