autolite ar33 plugs

ron b · 09-20-2015, 01:01 PM

I purchased some discounted ar33 plugs on rockauto and looking at them I can see a very faint line on the porcelain. I am not sure if this is a crack. I have never seen this on any before. has anyone else seen this? thanks ron

FED 387 · 09-20-2015, 03:44 PM

sounds like " Hairline cracks" I'd return em and get other plugs --FED387

Rsmith38 · 09-21-2015, 08:08 AM

I have been buying my Autolite 985 plugs from RockAuto for years - factory 4 packs - and can't remember a bad one. Autolite mfg is the same - no matter where you buy it.

ATI Performance Products · 09-21-2015, 09:08 AM

Quote:

Originally Posted by Rsmith38

I have been buying my Autolite 985 plugs from RockAuto for years - factory 4 packs - and can't remember a bad one. Autolite mfg is the same - no matter where you buy it.

I have heard from a couple sources that sometime in the last year Autolite moved ALL of their manufacturing to Mexico and have had some quality issues coming out of production. Not sure if the move is true / new, but the quality issues is first hand info.

Rsmith38 · 09-21-2015, 03:13 PM

Just looked at the 4 packs and they do say made in Mexico. Also a copyright date of 2013 probably means this started a couple of years ago.
Again; no problems with the plugs that I am sing.

buzzinhalfdozen · 09-21-2015, 03:18 PM

Spent first 2 weekends of the year chasing an engine problem, put 2 sets of autolites thru it, finally put a set of NGKs' in it problem gone. After the fact started hearing of lot's of issues with autolite plugs.

quickford1 · 09-21-2015, 04:54 PM

Autolite has been made in Mexico since 2007 so that's not the problem. Some AR3932 that were made in 2014 where having misfires, that problem has been corrected. Still the best race plug for the money. Let me know if you know any Nascar teams that are using NGK's.
Rich

ron b · 09-21-2015, 06:29 PM

Quote:

Originally Posted by buzzinhalfdozen

Spent first 2 weekends of the year chasing an engine problem, put 2 sets of autolites thru it, finally put a set of NGKs' in it problem gone. After the fact started hearing of lot's of issues with autolite plugs.

I like the autolite plugs, never had a problem. maybe they were roughed up a little somewhere. I will put them on the shelf for now. to much of a pain on a 428 cj mustang to try them and find out they are bad.

buzzinhalfdozen · 09-22-2015, 09:10 AM

Quickford1, was using AR473s ohm tested each one before installing, after putting 2 sets in and engine still would not run correctly I punted and changed the brand. Bottom line was new plugs fixed the problem the brand was most likely irrelevent. I've ran auto lites for many years and have good results, however after that episode it will be a while before I try them again. Not an NGK fan but that was the easiest plug to get as my application uses an odd plug configuration.

Ed Wright · 09-22-2015, 09:34 AM

Luckily I have had no issues with them yet, I have used Autolite plugs in everything for over 40 years. I hate to hear about problem with them. I had so many cars come across my dyno with NGK plugs that had to be replaced to cure a misfire so I could tune them, I had kind of branded them as crap in my mind. Now I find fast guys using them. LOL

09-20-2015, 01:01 PM	#1
ron b Member Join Date: Mar 2008 Posts: 126 Likes: 0 Liked 3 Times in 3 Posts	autolite ar33 plugs I purchased some discounted ar33 plugs on rockauto and looking at them I can see a very faint line on the porcelain. I am not sure if this is a crack. I have never seen this on any before. has anyone else seen this? thanks ron

09-20-2015, 03:44 PM	#2
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,366 Likes: 375 Liked 298 Times in 158 Posts	Re: autolite ar33 plugs sounds like " Hairline cracks" I'd return em and get other plugs --FED387

09-21-2015, 08:08 AM	#3
Rsmith38 Member Join Date: Mar 2011 Posts: 186 Likes: 0 Liked 28 Times in 15 Posts	Re: autolite ar33 plugs I have been buying my Autolite 985 plugs from RockAuto for years - factory 4 packs - and can't remember a bad one. Autolite mfg is the same - no matter where you buy it.

09-21-2015, 03:13 PM	#5
Rsmith38 Member Join Date: Mar 2011 Posts: 186 Likes: 0 Liked 28 Times in 15 Posts	Re: autolite ar33 plugs Just looked at the 4 packs and they do say made in Mexico. Also a copyright date of 2013 probably means this started a couple of years ago. Again; no problems with the plugs that I am sing.

09-21-2015, 03:18 PM	#6
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 985 Likes: 0 Liked 12 Times in 9 Posts	Re: autolite ar33 plugs Spent first 2 weekends of the year chasing an engine problem, put 2 sets of autolites thru it, finally put a set of NGKs' in it problem gone. After the fact started hearing of lot's of issues with autolite plugs. __________________ Joe Buchanan SS/BX 3117

09-21-2015, 04:54 PM	#7
quickford1 Member Join Date: Aug 2008 Location: Davidson, NC Posts: 265 Likes: 452 Liked 18 Times in 10 Posts	Re: autolite ar33 plugs Autolite has been made in Mexico since 2007 so that's not the problem. Some AR3932 that were made in 2014 where having misfires, that problem has been corrected. Still the best race plug for the money. Let me know if you know any Nascar teams that are using NGK's. Rich

09-22-2015, 09:10 AM	#9
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 985 Likes: 0 Liked 12 Times in 9 Posts	Re: autolite ar33 plugs Quickford1, was using AR473s ohm tested each one before installing, after putting 2 sets in and engine still would not run correctly I punted and changed the brand. Bottom line was new plugs fixed the problem the brand was most likely irrelevent. I've ran auto lites for many years and have good results, however after that episode it will be a while before I try them again. Not an NGK fan but that was the easiest plug to get as my application uses an odd plug configuration. __________________ Joe Buchanan SS/BX 3117

09-22-2015, 09:34 AM	#10
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	Re: autolite ar33 plugs Luckily I have had no issues with them yet, I have used Autolite plugs in everything for over 40 years. I hate to hear about problem with them. I had so many cars come across my dyno with NGK plugs that had to be replaced to cure a misfire so I could tune them, I had kind of branded them as crap in my mind. Now I find fast guys using them. LOL __________________ Ed Wright 4156 SS/JA