Please help with Spark Plugs!
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Joined: Mar 2006
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From: Kansas City
Originally Posted by Boofster,Jan 18 2007, 03:12 PM
Is 1.1mm the minimum range?
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From: Long Island, New York
What are you using to measure?
If I found them at .035, I would put them in as is, absolutely no question
The coating is like glass, and can flake if you bend the electrode.
I just checked two new ones I had here. They are exactly .040.
Use the disc type gapper, and gently check the gap. CHECK....not adjust. No pressure.
If I found them at .035, I would put them in as is, absolutely no question
The coating is like glass, and can flake if you bend the electrode.
I just checked two new ones I had here. They are exactly .040.
Use the disc type gapper, and gently check the gap. CHECK....not adjust. No pressure.
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From: Long Island, New York
Let me rephrase a little....if I had 4 new OEM plugs, and they all were exacty .035, I would definitely install them as is.
If three of them were .035, and one was .030, I'd consider the one damaged and return it.
If three of them were .035, and one was .030, I'd consider the one damaged and return it.
Thread Starter
Joined: Aug 2006
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From: New England
I use the disk one like you said, I have one on my key-chain back from when used to be a tech. Ill go ahead measure all 4, lets hope they all .035 I guess.
1: .033
2: .036
3: .035
4: .036
1: .033
2: .036
3: .035
4: .036
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Joined: Jul 2002
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From: Long Island, New York
They are not OEM plugs, that's why the gap is off. They may be the same part number, but they are not Honda tailored. They are general public tailored and may fit a few different cars.
OEM plugs come in a Honda/NGK box, are IDENTICAL to the stock plug, and come correctly gapped for the S2000.
If you want to use them, I would strongly suggest putting them in as is, at those numbers.
OEM plugs come in a Honda/NGK box, are IDENTICAL to the stock plug, and come correctly gapped for the S2000.
If you want to use them, I would strongly suggest putting them in as is, at those numbers.
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Joined: Jul 2002
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From: Long Island, New York
The correct plug....designed to go 100,000 miles, the one that comes in the car from the factory:
98079-571BH
This an S2000 tailored PFR7G-11S. Only plug I will let my customers run. Perhaps why I've never had a customer with a P1399
98079-571BH
This an S2000 tailored PFR7G-11S. Only plug I will let my customers run. Perhaps why I've never had a customer with a P1399
Thread Starter
Joined: Aug 2006
Posts: 5,589
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From: New England
Q. How do I gap Iridium plugs
A. Before attempting to gap any DENSO Iridium Power spark plug, please review the specification chart to see the factory-preset gap. In most cases your Iridium Power plugs do not need to be gapped. Even with small variations in the factory set gap the ultra-efficient firing power design will compensate for those small variations. Should you decide to re-gap your Iridium Power plug, use extreme caution as improper gapping may damage or destroy the Iridium center electrode or porcelain center. To increase the gap size: Step 1 Use needle nose pliers or spark plug gapping tool to bend the ground strap up to the desired height. DO NOT LET THE PLIERS OR GAPPING TOOL TOUCH THE IRIDIUM CENTER ELECTRODE OR PORCELAIN. Step 2 Re-check the gap with a calibrated gapping tool. To decrease the gap size: Step 1 Use the same method as above, however bend the ground strap down to the desired height. DO NOT LET THE PLIERS OR GAPPING TOOL TOUCH THE IRIDIUM CENTER ELECTRODE OR PORCELAIN. Step 2 Re-check the gap with a calibrated gapping tool. WARNING: Failure to follow these directions may permanently damage the spark plug. Note: Never use a round gapping tool to check the gap or to increase or decrease the gap setting.
I found this on this site http://www.densoiridium.com/faq.php this should work for platinum ones also.
A. Before attempting to gap any DENSO Iridium Power spark plug, please review the specification chart to see the factory-preset gap. In most cases your Iridium Power plugs do not need to be gapped. Even with small variations in the factory set gap the ultra-efficient firing power design will compensate for those small variations. Should you decide to re-gap your Iridium Power plug, use extreme caution as improper gapping may damage or destroy the Iridium center electrode or porcelain center. To increase the gap size: Step 1 Use needle nose pliers or spark plug gapping tool to bend the ground strap up to the desired height. DO NOT LET THE PLIERS OR GAPPING TOOL TOUCH THE IRIDIUM CENTER ELECTRODE OR PORCELAIN. Step 2 Re-check the gap with a calibrated gapping tool. To decrease the gap size: Step 1 Use the same method as above, however bend the ground strap down to the desired height. DO NOT LET THE PLIERS OR GAPPING TOOL TOUCH THE IRIDIUM CENTER ELECTRODE OR PORCELAIN. Step 2 Re-check the gap with a calibrated gapping tool. WARNING: Failure to follow these directions may permanently damage the spark plug. Note: Never use a round gapping tool to check the gap or to increase or decrease the gap setting.
I found this on this site http://www.densoiridium.com/faq.php this should work for platinum ones also.