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Old Nov 14, 2003
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change spark plugs? Pic

30K miles already, i'm going to change my stock spark plugs to Denso Iridium IK20 this weekend, anythin i needs to watch up for? also i'm going to get the torque adjustable lbs wrench to tighten these plugs up to 13lbs.

anythin i needs to know, pls post up, thanks

--------------
oky, i digi some pic after i changed spark plugs to Denso.

ALL 4 stock NGK looks real bad after 30k miles, compared to Denso.....engine felt more strong now.....

Last edited by MIT; Nov 16, 2003 at 08:08 PM.
Old Nov 14, 2003
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nope... pretty straight forward job. just dont drop anything in the engine, and use a magnet or the ignition coil to get the plug out of the hole.
Old Nov 14, 2003
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all right, thanks
Old Nov 14, 2003
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is replacing the spark plugs mainly just maintinence, or is it an effective upgrade?
Old Nov 14, 2003
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Lightbulb

hot tip: use anti-seize on the plug threads.
you can buy same at any parts house
Old Nov 14, 2003
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It's mostly for maintenance. You'll feel a difference if your old plugs are bad. You need new plugs for a turbo setup, though.
Old Nov 14, 2003
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My Spark Plug DIY is on the DX-R site in my sig. All the DIYs I'm putting on there are in pdf form, so you can save it and print it out. Lots of good info there and even a FAQ.
Old Nov 14, 2003
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A few things to keep in mind:

1. Do the work on a cold engine.

2. Use anti-seize.

3. Torque them to 13 lbs.
Old Nov 15, 2003
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Great Helps~ thanks all of you, thanks Bellz (DIY's)
Old Nov 15, 2003
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what's anti sieze?
Old Nov 15, 2003
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It's a silver colored liquid/goo that's used in the assembly of parts that will need to replaced in the future.

Without anti-seize, over time these parts can become "bonded" with their seating hosts making it difficult to remove thus leading to lots of cussing, swearing, possible broken parts and lost wrenches in the shrubs or other inaccesible places. The prime examples are spark plugs, water pump bolts, head bolts, or intake/exhausts manifold studs.

It also has some anti-corrosion properties making it ideal for the screws that attach the rear license plate. The screws holes are a rust magnet.
Old Nov 16, 2003
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aren't you worried that the anti-seize could get into your engine?


Originally posted by Flashlightboy
It's a silver colored liquid/goo that's used in the assembly of parts that will need to replaced in the future.

Without anti-seize, over time these parts can become "bonded" with their seating hosts making it difficult to remove thus leading to lots of cussing, swearing, possible broken parts and lost wrenches in the shrubs or other inaccesible places. The prime examples are spark plugs, water pump bolts, head bolts, or intake/exhausts manifold studs.

It also has some anti-corrosion properties making it ideal for the screws that attach the rear license plate. The screws holes are a rust magnet.
Old Nov 16, 2003
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i didnt put any anti-seize stuff on spark plug, dont wanna that stuff get into engine.
Old Nov 16, 2003
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lol, that's why I didn't use it. The stock plugs didn't have any. Hey--my plugs looked like that after only 18K miles!
Old Nov 16, 2003
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you're not supposed to squirt a ton of antiseize onto the plugs, just a little and apply it around the threads of the plug. its a really good thing to do like Flashlightboy said, you wouldnt want any stripped thread holes where you spark plugs go now do you???
Old Nov 17, 2003
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Re: change spark plugs? Pic

Originally posted by MIT
[B] i'm going to get the torque adjustable lbs wrench to tighten these plugs up to 13lbs.

anythin i needs to know, pls post up, thanks
tis might seem like a stupid question, but how do u measure the pound tightened with a wrench
Old Nov 17, 2003
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a torque wrench has a torque meter on it, and it tells you how many ft-lbs of torque you're applying on the bolt/spark plug/whatever
Old Nov 17, 2003
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On the back of my Denso box, it said to turn the plugs 1/4 to 1/2 turn to properly seat them. It's not that big a deal. They're not moving parts,like a cam, so torqueing them isn't as important. If you have a torque wrench, use it, otherwise 1/4-1/2 turn them. I didn't have a torque wrench, and they're working great.

About the anti-seize..use it if you want. It's to keep the plugs from getting stuck in there over time. It makes them easier to remove the next time they're changed. It's not about stripping the threads.

The easiest way to start the plugs is to put the new plug in the plug socket and put the extention bar on there. Start it with your hand, not the wrench. If it cross-threads, you'll know it quickly, it takes several turns before the plug snugs by hand and you can back it off and start again if it cross-threads.
Old Nov 17, 2003
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torque is important, cuz if too loose can overheat in engine, if to tight can hurt the engine..... just get one Husky torque adjusting lbs/ft at Home Depot, cost like $54.
Old Nov 17, 2003
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Blow off any accumulated road grime from around the plugs before pulling them out. Don't want any crap dropping in through your plug hole. If you don't have access to a compressor, find one at a service station. Cheap insurance.
Old Nov 17, 2003
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On the plug torque, the objective is to crush the washer correctly, but not too much. 1/2 a turn past finger seating is fine. Worry about proper torque when you're indexing your plugs for race use. If you're not racing (as in real racing, not just taking our cars to the track), using the 1/2 turn vs 13 ft-lbs torque doesn't matter.

Use anti seize if you don't change the plugs often. If you're doing it regularly, it doesn't matter as much. It all boils down to how seriously you take your mechanics.
 
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