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#1
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Do spark plugs go bad?
Got this from a family member and was just wondering if the spark plugs could go bad.
Right now it’s garage art. But some people swear that the old NOS plugs worked Better. What are your thoughts? Not actually sure how old they are. Gerry
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1968 Firebird 400, 068 cam, TH400 & 13" Continental Converter, Auburn posi with 3:08 factory gears, Cliff's Q-jet resting on a 68 factory iron intake, DUI HEI and Ram Air pans and RARE Long Branch Manifolds |
#2
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They do NOT go bad.
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1977 Black Trans Am 180 HP Auto, essentially base model T/A. I'm the original owner, purchased May 7, 1977. Shut it off Shut it off Buddy, I just shut your Prius down... |
#3
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I would totally use those. They don’t go bad unless they suffer some sort of physical damage, usually from dropping. That blister pack they’ve been chilling in for the last 40 years is way easier on the plugs than your combustion chamber.
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#4
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X3 on using them. The way things are these days, they’re probably BETTER than anything made recently!
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#5
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They can start-out bad: shorted out.
The electrodes wear down slowly. Re-gap to satisfaction. The exteriors can get rusty and Corona grime. 0000 Steel wool and spray gloss clear. Gosh I have not bought new plugs in several decades. |
#6
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I’ve never seen packaging like that in my lifetime. Although they are probably perfectly well, I would save them for the nostalgia factor..
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LIFT HEAVY, LIFE IS TOO SHORT TO BE SMALL! |
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#7
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garage art
yeah kind of inclined to keep them as my garage art!!!
Gerry
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1968 Firebird 400, 068 cam, TH400 & 13" Continental Converter, Auburn posi with 3:08 factory gears, Cliff's Q-jet resting on a 68 factory iron intake, DUI HEI and Ram Air pans and RARE Long Branch Manifolds |
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#8
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The blister pack style was popular in non-auto parts stores. Like Sears, K-Mart, WalMart and the like. That plug number is still good and you can use those or buy new ones. The ones in the blister pack probably made in Toledo, OH New ones, probably Mexico.
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#9
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I vote for nostalgic shop art too.
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70 TA, 467 cid IAII, Edelbrock D-port heads, 9.94:1, Butler HR 236/242 @ .050, 520/540 lift, 112 LSA, Ray Klemm calibrated Q-jet, TKX (2.87 1st/.81 OD), 3.31 rear https://youtube.com/shorts/gG15nb4FWeo?feature=share |
#10
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I had one of those AC Fire-Ring stickers when I was collecting stickers as a kid, I thought that one was.so cool.
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
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#11
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I have a similar "blister" pack of plugs, mine as R44S and must be a bit newer because they are a more basic (predominantly blue) package - there is no 'Fire-ring' logo.
I personally would not hesitate to use those.
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1970 Formula 400 Carousel Red paint on Black standard interior A no-engine, no-transmission, no-wheel option car. Quite likely one of few '70 Muncie three speed Formula 400's left. 1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing) 2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs) |
#12
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I would look for a A “Best if Used By/Before” date indicates when a product will have the best flavor or quality
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#13
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Quote:
What about Flint, MI, home of ACDelco? https://www.mlive.com/news/flint/201...mer_ac_sp.html Quote:
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Mike |
#14
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Carefully open them, use the plugs, then when you feel they are done ... pull them out, clean them up and put them back in the package
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I'm World's Best Hyperbolist !! |
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#15
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Just the other day I was reading about the progenitor of AC, Albert Champion. He was sued by his former business partners because they had already incorporated Champion Spark Plugs. So he simply went with his initials for his company. He must have been pretty sucessful, leaving his widow 15 million dollars when he died in 1927.
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#16
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As stated, plugs don't 'go bad'. I've used 90+ year old NOS plugs in my old Model T Ford. AC plugs from back in the day were excellent, much better than the AC plug of the past 20 years.
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Jeff |
#17
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Ebay ads are a good place for documentation.
The 1959 A. C. ad suggests the "fire ring" design was new. 1958 ads did not have the fire ring. Checking newer ads, the last one I found with the fire ring design was 1972. For What Its Worth. Jon
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"Good carburetion is fuelish hot air". "The most expensive carburetor is the wrong one given to you by your neighbor". If you truly believe that "one size fits all" try walking a mile in your spouse's shoes! Owner of The Carburetor Shop, LLC (of Missouri). Current caretaker of the remains of Stromberg Caburetor, and custodian of the existing Carter and Kingston carburetor drawings. |
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#18
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If I remember correctly AC "R" resister plugs came out in the mid 1960's so they are no older than that. Check them for cracks and if none found I would definitely use them. What's the worst that could happen? You have to take them out?
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#19
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Garage Art It Is
Honestly I am running auto lite plugs anyway!!!
Gerry
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1968 Firebird 400, 068 cam, TH400 & 13" Continental Converter, Auburn posi with 3:08 factory gears, Cliff's Q-jet resting on a 68 factory iron intake, DUI HEI and Ram Air pans and RARE Long Branch Manifolds |
#20
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I'll be moving to TN before too long .. probably building a brandy new 30x60 shop will all the bells and whistles ... then I see the photo of your shop. To be honest I freakin love old barn shops, I feel way more at home in them, they feel way more cozy and relaxing to hang out in. It's the kind of place I've worked on cars my whole life, all the while wishing for a smooth concrete floor, nice electrical system, air system, HVAC, perfect lighting .. but it's just hard to hang out in a austere, 14 foot ceiling, expansive shop. Heck I worked for years in a shop with a compacted dirt/grease floor. Love the smell of the old shops.
I'm really hoping whatever property we buy ends up having and old barn shop, or at least a barn that can be turned into a shop? But am I going to want to work on cars, tractors, and equipment in a place like that at 65 years old? I know, kind of a rant ... I want the new stuff, but I'd rather go sit in your shop.
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I'm World's Best Hyperbolist !! |
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