Answers
Changing the spark plugs and and do not know what the gap should be. Help!
Heather
Gap is .060" (1.52mm) for both supercharged and non-supercharged V6 engine.
Correct way to check, set and adjust your spark plug gap. NGK Spark Plugs USA.
Is it absolutely necessary to have it exact to the mm? and how about the order of installation?
As long as the rest of your engine is stock I would go with these
http://www.flyinmiata.com/index.php?dept id=4529&parentid=0&stocknumber=0 4-56100
If by mm you are talking about the gap - then it doesn't need to be 100% but as you see in the link from FM, .40 to .44 is fine.
Go with these for turbo or supercharger applications
http://www.flyinmiata.com/index.php?dept id=4529&parentid=0&stocknumber=0 4-56200
you could gap them a bit less than stated either.
Flyin Miata is pretty much the bible when it comes to Miata's and performance and I swear by them. And i have owned WAYYYYY too many Miatas.
For additional research check out www.miata.net and their forum and garage areas.
I think they were gapped 10 mills more than normal. There is small material build up of about 10 mills. This is a 2000 Ford Focus with a Zetec engine. And when the engine is hot the engine sputters under load when the transmission down shift to low RPM.
Too big or too small a plug gap WILL have a detrimental affect on performance and economy.Set plugs to engine manufacturers specifications.
Is it absolutely necessary to have it at the exact mm? Order of installation?
1.1mm
Yes, it is absolutely necessary to have it at 1.1mm. Most spark plugs come pre-gapped, but check them before installation.
It doesn't matter the order of installation. Just make sure you put the right spark plug's connecting wire in the right cylinder. A picture labelling their firing order is on this page: http://www.miata.net/garage/ignition.htm l
I have a 1979 Nordic Jet boat with a 454 chevy engine. I want to know the spark plug gap and timing.
Does it have HEI ignition? Try .045 with that, .035 with standard points. I would set the timing to around 35-37 degrees "total" timing, any vacuum lines to distributor off, engine around 2500-3000 rpm, while timing it. I have a '90 jet boat with a 454 in it also, B&M forced induction supercharger, 850 dp holley, MSD crank trigger ignition, had nitrous, but removed it. Good luck.
Buy Cheap
- Bosch (4501) FGR8DQI Platinum IR Fusion Spark Plug, Pack of 1
Price: $9.33
Factory pre-set gap allows for easy installation that never requires adjustment
Four yttrium enhanced ground electrodes resist spark plug wear and oxidation for exceptional performance life
Revolutionary surface air gap firing technology featuring Bosch's unique four ground electrode design delivers the most powerful spark for the most efficient combustion and optimum horsepower without increasing the voltage requirement
Spark knock problem
If you don't have the money, I suggest you not screw around with anything , otherwise you will be building an entire motor. And if the car is knocking, then you may also not want to drive it otherwise you may end up building an entire motor. What injectors, and fuel pump, and boost are you running? Did you at least get a base tune from VMP/TrickTuners?
Spark Plug Gap?? - Motorized Bicycle Engine Kit Forum
BTW - the reason I'm so "sold" on the NGKs is cause of all the assorted engines in various stated of disrepair I've had o'er the years with NGKs in them, the NGKs simply wouldn't foul... I'm not usually big on touting some marvel product or another, but seriously - I love me them NGKs, I wouldn't have dared run anythin' else in my 2stroke ultralight and that's a fact.
News
Step-by-step guide to changing your car's spark plugsGlobe and Mail - Feb 08, 2012
Step-by-step guide to changing your car's spark plugsBefore installing the new plugs, check the gap with a spark plug gauge (.050” to .053”) and coat the threads with a thin film of “anti-seize” compound. You will appreciate this when you replace them next time. 5. To install the new plugs,
Wheels.ca - Feb 08, 2012
Spark plugs' days may be numberedConventional spark ignition creates only a small arc in the gap between the electrodes of a spark plug. Corona ignition promises a larger high-intensity ignition source, spread throughout the combustion chamber, thus enabling more thorough combustionComputerWeekly.com - Feb 08, 2012
He said it is crucial for businesses to work with educational organisations to plug the skills gap and enthuse young people about IT careers. "The education sector must embrace systematic change to create programmes that are flexible enough to meet the and more »Elk Grove Citizen - Feb 08, 2012
His injury, along with sparkplug Colin Serne leaving with an ankle injury in the second half, added to a growing list of injuries that has already decimated a team favored to win the Sac-Joaquin Section Division I title. Even so, injuries haven't and more »Bleacher Report - Feb 08, 2012
The team was able to plug holes left by injury for a while last season, but eventually fell flat when the fill-ins were relegated to coming off the bench. Adding a left-handed bat to replace an ailing Ross Gload is the first step, and more »
Targeted News Service (subscription) - Feb 08, 2012
The abstract of the patent published by the US Patent and Trademark Office states: "A spark plug, center electrode and method of construction is provided. The spark plug has a generally annular ceramic insulator and a conductive shell surrounding at and more »The Bell Ringer - Feb 08, 2012
In limited action, junior guard Kyle Armour has been a spark plug on defense, also. Only time will tell how the incoming freshmen guards handle defensive duties. New guards Jay Manning, Devonte Thomas, Roman Hill and D'Angelo Boyce are a tad bigger
Lisle 67900 Spark Plug Gapper with Wide Gaps