I've see where others have had trouble with these, and I wrecked a few myself. I blew the center out of one trying to hammer in with a screwdriver, and I really distorted one trying to hammer it in without a screwdriver.
I took an old screwdriver that fit well in the hole of the plug, and cut the end off, so that I had a handle with a tip that was just shorter than the plug. This way the handle butts against the flat part of the plug, and the shank supports the "cylinder" part. Lubed the plugs with soapy water, and they hammered in with very little effort.
Just passing this along, as I've seen others have trouble with these. Dan Orgill posted the same thing on 8/12 (where I got the idea, after trashing a few). I am just confirming that this works GREAT. My only suggestion is use soapy water as lube, instead of oil or grease that leave a small mess in your engine compartment. Make the tool, and it will be an easy job. Don't waste a bunch of time and end up trashing a few plugs like I did! LOL
I took an old screwdriver that fit well in the hole of the plug, and cut the end off, so that I had a handle with a tip that was just shorter than the plug. This way the handle butts against the flat part of the plug, and the shank supports the "cylinder" part. Lubed the plugs with soapy water, and they hammered in with very little effort.
Just passing this along, as I've seen others have trouble with these. Dan Orgill posted the same thing on 8/12 (where I got the idea, after trashing a few). I am just confirming that this works GREAT. My only suggestion is use soapy water as lube, instead of oil or grease that leave a small mess in your engine compartment. Make the tool, and it will be an easy job. Don't waste a bunch of time and end up trashing a few plugs like I did! LOL