Doh ! Yep, Swing needle type multimeter. I neglected to ZERO out the ohm setting so I was always getting "off the scale" readings.
Getting the 1.5 or so reading now. But G3 is in fact dead plus another one is bearly moving the needle.
Am I asking for big trouble taking the manifold off ?? Cause you're right, can't get to it. No way gonna get 12mm socket in there. If I have to take it off I may as well replace all six huh ??? Believe it or not, Pep Boys has Bosh Glow Plugs for $7.99 each. Just have to get them in.