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26th August 2003, 12:40 PM
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to torque or not to torque
I have a new set of the Champion double platinum plugs that I want to put into my 2002. Question is ... do I really need to toruqe these to 13 ft/lbs??? That means I need to go out and buy another torque wrnech ,,,, now I've installed plugs in aluminum head engines before (Geo Prizm, Hondas) and all I;ve done is to snug them down (yeah its very innacurate), but I've neved stripped the threads in the head. Truthfully, do all of you out there use a torque wrench??? I don;t really believe that my Chrysler dealership bothers. What do you think?
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26th August 2003, 02:46 PM
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 When I installed mine I was impressed with how little torque 13 ft/lbs is when you go by feel. After you apply anti-sieze, it takes a finely tuned arm to gauge the proper torque without going over.Buy the wrench. It's still cheaper than the labor my dealership wanted to charge me for the plug installation, not to mention the triple price premium for the double-platinum plugs they tried to push. Look at it this way, you get to own another cool tool. If you buy a good one, it should last for quite awhile.
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Vince 2001 Inferno Red Cruiser Limited, 5-speed. 16x7" SSR Comp wheels, 215/55-16 Nitto NT 450 tires(3 seasons), 205/55-16 Green Diamond Icelanders (winter tires) on factory 2003 7-spoke wheels, K&N FIPK Air Intake, MOPAR Spoiler, Suspension Techniques Sway Bars, Freedom Design Strut Brace, Suspension Techniques Springs, KYB Shocks. |
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26th August 2003, 02:56 PM
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I can only speak for myself. I use a torque wrench whenever there are torque specs. 13 ft-lbs isn't a lot and it is easy to over-tighten and stretch the threads. Snugging down a spark plug, bolt, or nut can easily exceed 25 ft-lbs. YMMV
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2002 Almond Pearl Limited Edition PT Cruiser 27K It's nice to be important but it's more important to be nice. http://sci-fi.ptenthusiasts.net/   
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26th August 2003, 07:39 PM
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I've changed plugs on several PTE members cars.....
They will all attest that I used an inch/lb torque wrench on every plug. Follow the www.ptdiy.net guide.
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2002 Dream Cruiser #435 with: over 115hp nitrous, MX-5 "burp-free" shift mod, 2003 shifter, 2001 radio, 2001 Mopar subwoofer, MX-5 designed true cold-air intake, MX-5 designed double platinum spark plugs, shory antenna, much more.... |
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27th August 2003, 07:37 AM
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Just did this last night. If I had tighted by hand, I would have definitely overdone it. 17Nm doesn't even seem tight enough to not fall out.
Andy
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Andrew in Austin, TX 2002 Inferno Red Limited Edition / 5 speed / ABS Flameball / painted center console / MGW Chrome lock pins / BTG Strut Tower Brace / Eibach Pro-Kit / Tokico struts & shocks / B&M Short Throw Shifter Cruisin' since August 7th, 2001 |
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27th August 2003, 12:21 PM
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Okay, I'll admit it - I'm like you, I've put plugs into cars with aluminum heads before, and I didn't use a torque wrench.
My tip - check the gap - the new Champion platinums I bought were all off - some under, some over 0.050".
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'05 Limited (Silver, of course)Turbo Lite, Auto, 4-wheel ABS, Sunroof, spoiler. E&G Classic Grill, K&N FIPK, BTG Dual exhaust, $20 catch can, Aoogah horn, LED washer lights, Sunroof deflector, Weathertech window deflectors, Fuzzy dice, Alteeza Gen3 taillights, rear lowered 1.5", rear sway bar, hood struts, Freedom Design strut bar. Traded in 2002 Silver Touring Edition, ABS, Sunroof, Auto w/87,000 miles. 
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