Sputtering after plug replacement...

IHateHacks · 04-24-2007, 01:44 AM

Just so you know, comparing plugs to check the gap is not possible. The human eye can not distinguish the difference between .008". Spark plug gap checking tools are .99cents at your favorite parts store.

What kind of plugs did you use? You better not say Autolite, Champion or Bosch platinum +4's.

dannydavi · 04-24-2007, 03:37 AM

i used NGK iridium IX. and yeah im going to grab a gap tool at wally for less than a buck, just didnt have one then. could the gap make it sputter that bad? i think they came .044, so assuming that they were to spec with the sale advertisement then that wouldnt be the problem, but im obviously going to check that now that there is a problem, unfortunate that i didnt before. I also just ordered NGK wires earlier today, paid for the two day, so i'll have those soon. the wires were def sparking though. i removed three that i could access with the throttle body on and they were sparking fine.... speaking of throttle body.. does that gasket inbetween it and the intake need RTV gasket sealer goo stuff? or just the gasket?

supramacist · 04-24-2007, 05:54 AM

You can't assume you are getting propper fire from all of the plugs without checking all 6.

I am using denso iridium u grooves. With MSD wires. They are not yet installed.

I think with you not checking the gap and a bad 1 or 2 wires you may get a sputter but if it's wires. You'll feel sluggish. Like you are really having to ride that gas pedal to make it go and or rpm decrease or slop in the rpm's.

Sorry. I probably should have just stayed quiet.

I think you will solve the problem with a gapper and new wires. May be time for a new rotor and dist. cap.

cars4me89 · 04-24-2007, 07:20 AM

The proper tool name is a feeler gauge and for spark plugs, it's not crucial to gap them (just make sure they have a gap lol). Unless they are for race application then measurements are necessary. And for spark plug wires, I bought a set of the MSD wires and had the exact same problem you did with the misfire, turned out to be the 6th cylinder plug wire was closing onto the plug all the way. To fix it, I just took some long needle nose and clamped the inside together, by the way I HATE MY MSD WIRES. I'm switchin to factory as soon as I get the time. Don't waste your time with aftermarket, stick with Toyota, at least in my opinion, hell if you want the MSD wires you can have em from my car for free.. haha.

cars4me89 · 04-24-2007, 07:21 AM

also, channel locks ain't a good idea. get spark plug wire removers with nice rubber boots on em.. much better idea.

IHateHacks · 04-24-2007, 12:47 PM

My MSD wires work fine, and the are far superior to the stock toyota ones as far as resistances are concerned.

My advice is if you can't get spark plug wires off with your bare hands, then its time to put away the wrenches and bring your car to someone that knows what they are doing.

supramacist · 04-24-2007, 04:26 PM

Lmao......

dannydavi · 04-24-2007, 09:35 PM

Quote:

Originally Posted by cars4me89

same problem you did with the misfire, turned out to be the 6th cylinder plug wire was closing onto the plug all the way. To fix it, I just took some long needle nose and clamped the inside together

was or was not closing onto the plug all the way? if you clamped them together to resolve the issue, i'll assume you meant was not closing onto plug all the way, and in that case i will def check that as well when i install my NGK wires. Make sure they grasp the plug nice and snug.

As for the RTV gasket goo, do you guys put that on the uppper intake to throttle body?

supramacist · 04-24-2007, 10:32 PM

New wires shouldn't have to be tweeked, by anything more than your hand.

dannydavi · 04-24-2007, 10:47 PM

oh yeah they shouldnt... but you heard dudes post up there, he had to tweek his... so it couldnt hurt to check.

04-24-2007, 03:37 AM	#2
dannydavi 12psi boost Join Date: Mar 2007 Location: Sacramento, Ca Posts: 373	i used NGK iridium IX. and yeah im going to grab a gap tool at wally for less than a buck, just didnt have one then. could the gap make it sputter that bad? i think they came .044, so assuming that they were to spec with the sale advertisement then that wouldnt be the problem, but im obviously going to check that now that there is a problem, unfortunate that i didnt before. I also just ordered NGK wires earlier today, paid for the two day, so i'll have those soon. the wires were def sparking though. i removed three that i could access with the throttle body on and they were sparking fine.... speaking of throttle body.. does that gasket inbetween it and the intake need RTV gasket sealer goo stuff? or just the gasket? __________________ '86.5 Supra - A/T - N/A - JDM Useful Sites: ToyoDIY.com ToyotaPart.com MKIIITSRM

04-24-2007, 07:20 AM	#4
cars4me89 3" Exhaust Join Date: Jun 2006 Location: Phoenix, AZ Posts: 115	The proper tool name is a feeler gauge and for spark plugs, it's not crucial to gap them (just make sure they have a gap lol). Unless they are for race application then measurements are necessary. And for spark plug wires, I bought a set of the MSD wires and had the exact same problem you did with the misfire, turned out to be the 6th cylinder plug wire was closing onto the plug all the way. To fix it, I just took some long needle nose and clamped the inside together, by the way I HATE MY MSD WIRES. I'm switchin to factory as soon as I get the time. Don't waste your time with aftermarket, stick with Toyota, at least in my opinion, hell if you want the MSD wires you can have em from my car for free.. haha. __________________ 1987 Toyota Supra 7M-GE Natrually Aspirated Automatic http://www.cardomain.com/ride/2385905 Currently enrolled in UTI (Universal Technical Institute.. ya ya say what you want bout the school lol its got some nice benefits though), have about two years of auto experience so far.. only 18 years old. My supra's older than me :P -Phil

04-24-2007, 07:21 AM	#5
cars4me89 3" Exhaust Join Date: Jun 2006 Location: Phoenix, AZ Posts: 115	also, channel locks ain't a good idea. get spark plug wire removers with nice rubber boots on em.. much better idea. __________________ 1987 Toyota Supra 7M-GE Natrually Aspirated Automatic http://www.cardomain.com/ride/2385905 Currently enrolled in UTI (Universal Technical Institute.. ya ya say what you want bout the school lol its got some nice benefits though), have about two years of auto experience so far.. only 18 years old. My supra's older than me :P -Phil

04-24-2007, 10:47 PM	#10
dannydavi 12psi boost Join Date: Mar 2007 Location: Sacramento, Ca Posts: 373	oh yeah they shouldnt... but you heard dudes post up there, he had to tweek his... so it couldnt hurt to check. __________________ '86.5 Supra - A/T - N/A - JDM Useful Sites: ToyoDIY.com ToyotaPart.com MKIIITSRM

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04-24-2007, 01:44 AM	#1
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	Just so you know, comparing plugs to check the gap is not possible. The human eye can not distinguish the difference between .008". Spark plug gap checking tools are .99cents at your favorite parts store. What kind of plugs did you use? You better not say Autolite, Champion or Bosch platinum +4's.

04-24-2007, 05:54 AM	#3
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	You can't assume you are getting propper fire from all of the plugs without checking all 6. I am using denso iridium u grooves. With MSD wires. They are not yet installed. I think with you not checking the gap and a bad 1 or 2 wires you may get a sputter but if it's wires. You'll feel sluggish. Like you are really having to ride that gas pedal to make it go and or rpm decrease or slop in the rpm's. Sorry. I probably should have just stayed quiet. I think you will solve the problem with a gapper and new wires. May be time for a new rotor and dist. cap.

04-24-2007, 12:47 PM	#6
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	My MSD wires work fine, and the are far superior to the stock toyota ones as far as resistances are concerned. My advice is if you can't get spark plug wires off with your bare hands, then its time to put away the wrenches and bring your car to someone that knows what they are doing.

04-24-2007, 04:26 PM	#7
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Lmao......

04-24-2007, 10:32 PM	#9
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	New wires shouldn't have to be tweeked, by anything more than your hand.