I just bought some Autolite 3923's to put in the truck. I went to advanced auto parts and he gave me the plugs and the top of the plug where the boot connects was off, I have to screw it on, adn there was a washer I had to thread on as well.

I figured something was wrong with them and I told him I didnt want it. I drove over to NAPA and got the same plugs, and what'ya know. Same deal!

So my question is, is this a normal thing? Ive never seen a plug that has to be "assembled". If this is normal, do I really need to washer at the top of the threads?

Thanks, I plan on changing them as soon as I get a few responses.

Jim

 

Yes it's normal. 3923's come that way. Sometimes the end is threaded on already, sometimes it is not. You always need to thread the washer on yourself too. That's just how they are shipped.

 

Right on, thanks man. I just installed them. Runs ok, the gap for autolite said .035, but the hood sticker on my truck said .040.

I gapped them at .035 like the autolite plug specified, is this ok or should i have gone to .040?

Seems to be a "tiny" bit jumpy, but maybe thats just me concentrating really hard on it? I think its cool, its definitely not misfiring or anything like that.

Jim

 

should gap to the proper setting. Won't get enough spark time.

 

According to which tho? The plug specs or the truck specs? Id assume one should go by the plug and Im curious where my truck tells me what to gap to? WHat motor you have kler?

 

Gap to the spec on the emissions sticker under the hood. Gap is probably listed in the owner's manual too. I think the 04 has a 3.7, and I don't know the gap for it. My 01 has a 3.9, the gap for it is .035. Really the only time you want to increase the gap is if you have a modified ignition system, like Accel or MSD. On a stock ignition go with the OE gap spec or the performance will suffer.

Jimmy

 

Damn that sucks, the autolite plug specified .035, but my hood sticker specified .040. Now I figured that .040 was for the stock NGK plugs that were put in at the factory, and assuming you use the same plug then yea, .040 it is. But the new plugs I put in, specified .035 for the dakota 3.7...??

I dunno, maybe .005 doesnt make all that big a difference?

Jim

 

I heard that the NGK 2262's run really good in the 4.7 even better than Autolite's, most of the stuff you read on those is for the Magnum engines and since the 3.7 and 4.7 are like the 3.9 and 5.2 where it is mainly just 2 less cylinders I would think those would run really well in the 3.7 too. I plan on getting the NGK's when it gets hot out again if my engine starts pinging again on performance mode with the autolite 5224's I have in it now