Howdy guys, I can't quite tell what the thread size is on our spark plugs.
Need to know because I need to buy a leakdown tester and need to have the proper adapter (obviously)
Quote from: honeybadger on January 08, 2013, 03:03:47 PM
Howdy guys, I can't quite tell what the thread size is on our spark plugs.
Need to know because I need to buy a leakdown tester and need to have the proper adapter (obviously)
Thread diameter is 12mm, thread pitch is 1.25mm and the reach is 19mm. Regards, Pete.
or you could do what I did and buy a leakdown/compression tester [I am assuming they are the same?] with a 14mm end thinking the mm designation would be for motorcycles because it is millimeters and an auto designation end would be American units. then when I tried to screw the tip in it would not fit and I spent WAY too much time trying to get that tip to fit before I realized it was the wrong size. Yep, now I need to get an adapter also. 14mm to 12mm.
That should not be too hard to find, eh.
Me to.... http://www.toolsource.com/adapter-clt2-compression-tester-14mm-12mm-p-100140.html (http://www.toolsource.com/adapter-clt2-compression-tester-14mm-12mm-p-100140.html) this might work ?
thanx movenon.
I used an old spark plug with the center ripped out, welded an air fitting to it, and works great for leak testing and compression tests