I am not worried about what plugs I will use when time to change but my worry is they are supposed to be changed at 30000 km's now that is gonna be 3 and a half years from new. My concern is should they at least be loosened or even removed and cleaned before that so that I don't run into situations where the plugs get stuck in from carbon build up what have you. Oil changes go by miles or time which even comes first but plugs seem to just go by mileage. These are aluminum heads correct? Now would that not be an issue in itself?
The reason I am worried is I had a 98 dakota which got limited miles also, had to change the front brakes due to not enough use the rotors rusted out, so when taking the two bolts that held the caliper in the threads cames out with them, I had to have a guy come and put heli coils in...now I see Murrays has a bolt that cuts itself a new hole and stays in , I found them when my lower spindles stripped out because they were put on the wrong sides and well the bolts were not put in exactly straight. Now it says not to use these bolts on more than one on each side well I am using two on one side since both were stripped from PO. This is on my 72 chev but I am worried about a something like this happening to the HEMI spark plugs, anyone have ideas what to do about this or do I not have a worry?

 

Leave the plugs alone until thier due to be changed, don't know if you have changed sp plugs on the hemi, its a pain, by trying to complete preventive maiantance you will curse your self to the grave if you happen to lose a coil bolt, or contaminate the cylinder walls or just cause accidential damage.

On the old great cars of yester year, chaging the plugs on any domostic wasa a cake walk, I cleaned my spark plugs back in auto shop with a sand blaster ( machine made by champion ) never had to buy new plugs.

I beleave that running mid grade or higher flue will help the plugs out in the long run, the best clean burning flue you can use will prevent carbon from building up on the plugs, injectors and run the hemi on the higway, if your not driving the truck, plugs are not working any how.

 

Why can't we use platinums that last 3 times as long as regular plugs. It's bad enough we must change 16 plugs. But to change 16 plugs every 30,000 miles seems a bit unfair to the consumer.

 

Man, you must have the new HEMI with the 16 Plugs....everyone else only has 8. I new I shoulda researched more and read what it had first before buying.

 

Regardless of any other opinions on here....it is ALWAYS a good practice to remove your plugs and inspect them at least yearly even if the interval to replace is longer...but even more important is to add the spark plug grease to keep them from sticking/stripping when removed.

 

I'm sure a platinum or iridium plug will work and go 100000k.Whats in the 2010s?

 

Okay finally the answer I was going for. Makes sense to me, did not know there was spark plug grease but sounds cool to me. I hear the wires have an adhesive, how do we get around that or do we have to replace wires too?

 

If your gonna INSPECT them you might as well replace them.The most I use to do was pull one or two and check them/gap.If wore I'd pull all and replace.But I wasn't about to pull eight or what (16 with the Hemi)not just to look at them.

 

+1

These plugs arent easy to change, if you are going to pull them just replace them. I have pulled plugs out of aluminum headed engines with 100K on them and they come out just fine. Older 2V OHC fords had some issues with plugs seizing but that was had nothing to do with carbon on the threads.

Sometimes fixing what isnt broke can do more harm than good..

 

I wouldn't worry about it, I changed the plugs in my cavalier with over 100k miles and they came out no problem.