quote:
Originally posted by Gary Allan:
I've used the Plus 4 and Plus 2 ..and even the regular plain plats and never had any trouble with them. Got mega miles out of them. I'm going back to conventional from here on out though.
I know. I've heard that from several people. Some love them, some have problems and never use them again. I think I'm in the 2nd. group.
quote:
Just a question here. Did you install the plugs? That is, how do you know that they were not cracked by the installer? That is, did you feel any difference in performance that prompted you to change them ..or were they just due?
They came with the van. Bought it a year ago with 183K miles and needing some tlc. Spent 3 weeks fixing all the problems. Checked the front plugs at that time and they looked ok. Just a little white deposits on the ground electrode, indicating a little oil burning. All 3 plugs were unbroken at that time. Has 191K on it now, was getting it ready for the annual inspection. Pulled a plug to
see how it looked, and it was broken. Pulled other 2 in the front and all were broken. Decided I better replace them all, so got a set of Autolite
646's and did the job. 1 of the back 3 was also broken. Don't know what the story is on this. The plug gaps were like .080-.090. Spec is .048-.053.
Engine ran just fine with no indication of a problem.
Anyway, it passed the immissions test with really
good numbers. So we're set for another year.
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My 92 is easy with the 3.0 (obviously not a grand). The rear are easier than the fronts to a degree. You only have to take off the air box. The only PITA is that the plugs are deeply recessed in the head ..and you have a hard time getting it threaded without a little hunter/seeker action. They are quite large and don't funnel you to the threads. You can't physically see in any of them ..so you don't know if they're filled with crud. I even spray them out with cleaner before I attempt it ..but..
On the 94, the back plugs are easy to get to, after you get the plunum off. On my wifes 2000 GC
it's a different story. I may pay someone to do it. It's really bad to get at.
As far as the plug wells on the 3.3, they're not to bad. I blow out any loose dirt with an air nozzle with a piece of 1/8" copper tube soldered in the end. Then I hose every thing down with Gumout spray cleaner, remove the plugs, and clean out the wells with a large screw driver with a paper towel wrapped around it. Works pretty well as long as you can see what you are doing.
Wayne
