In a message dated 3/6/2007 9:20:55 A.M. Eastern Standard Time, wschertz@comcast.net writes:
Lynn, how do you tighten the AR2592 plugs? The hex part goes into the recess on my engine, so that a socket will not fit.
Bill Schertz
KIS Cruiser # 4045
That is so you will use only long bodied NGKs. I die grind a slight taper in the hole. And remove the cast on lip or eyebrow around the hole. Then thin down a cheap deep socket to go in there. Racing Beat sells one but its pricey. I only used the NGKs if I got them free.
There are a number of plugs with a 5/8 hex that work also. Only 12 to 14 pounds of torque.
And if you look at them often, a drop of anti-seize on the threads keeps the housings happy.
If a plug sticks, warm the engine and try again.
Lynn E. Hanover