plugs

lx5091 · 10-01-2002, 10:09 AM

I finally put new plugs and wires in my Mustang. I had 8mm accel wires since the guy before my friend I bought it off of. That's a couple years back! Probably only 22K miles though. Anyway I found something interesting.... the motorcraft plugs in there all had strange gaps. The plugs in 5,6,7,8 were all at .052, probably normal wear. The plugs in 1,2,3,4 were all gapped differently ranging from .055 to .065

They all looked normal as far as wear, they just had wierd gaps.

How did this happen?

MDM · 10-03-2002, 01:57 AM

my guess would be that the person who originally installed the plugs did not check the gaps before putting them in. It is not unusual to find a wide range of gaps on plugs out of the box. Use and wear could also likely account for the additional gap and discrepancy and that is what you are finding now.

ultraflo · 10-03-2002, 11:47 AM

I agree w/ MDM... just go back through and re-gap them, or replace them with a fresh set... being sure to gap them all the same, of course.

lx5091 · 10-03-2002, 03:52 PM

I put new plugs, wires, cap & rotor before I started the thread. I was just wondering why the plugs I took out might have been gapped like that, that's all.

429mustang · 10-03-2002, 09:59 PM

It probably wasn't intentional.

10-01-2002, 10:09 AM	#1
lx5091 Registered Member Join Date: Nov 2001 Location: Fall River, MA Posts: 467	plugs I finally put new plugs and wires in my Mustang. I had 8mm accel wires since the guy before my friend I bought it off of. That's a couple years back! Probably only 22K miles though. Anyway I found something interesting.... the motorcraft plugs in there all had strange gaps. The plugs in 5,6,7,8 were all at .052, probably normal wear. The plugs in 1,2,3,4 were all gapped differently ranging from .055 to .065 They all looked normal as far as wear, they just had wierd gaps. How did this happen? __________________ '02 Explorer XLT 4.0L --Nice Vehicle '97 Saturn SL1--Soon to be ditched for a Ford!

10-03-2002, 11:47 AM	#3
ultraflo NX dealer-man Join Date: Sep 1998 Location: Peoria, Illinois Posts: 977	I agree w/ MDM... just go back through and re-gap them, or replace them with a fresh set... being sure to gap them all the same, of course. __________________ RLS Racing! 93 LX 9.20 @ 147mph 03 Mach 1 12.39 @ 116mph

10-03-2002, 03:52 PM	#4
lx5091 Registered Member Join Date: Nov 2001 Location: Fall River, MA Posts: 467	I put new plugs, wires, cap & rotor before I started the thread. I was just wondering why the plugs I took out might have been gapped like that, that's all. __________________ '02 Explorer XLT 4.0L --Nice Vehicle '97 Saturn SL1--Soon to be ditched for a Ford!

10-03-2002, 09:59 PM	#5
429mustang Registered Member Join Date: May 2001 Location: westerville, OH USA Posts: 618	It probably wasn't intentional. __________________ 1990 Notchback: BBK Ceramic Coated Full length headers, Dr. Gas 3"- 2 1/2" x-pipe, Flowmaster 40's/turndowns.

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10-03-2002, 01:57 AM	#2
MDM Registered Member Join Date: Feb 2000 Location: Flemington, NJ USA Posts: 166	my guess would be that the person who originally installed the plugs did not check the gaps before putting them in. It is not unusual to find a wide range of gaps on plugs out of the box. Use and wear could also likely account for the additional gap and discrepancy and that is what you are finding now.