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RX8manual re : sparkplugs

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RX8manual re : sparkplugs

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Old 07-18-2005, 01:27 AM
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RX8manual re : sparkplugs

After searching and reading various suggestions some totally incorrect idecided to consult my own RX8 MANUAL AND TO MY SUPRISE THIS IS WHAT I HAVE FOUND .
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Old 07-18-2005, 02:03 AM
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How surprising.... ... a misprint?!

Leading is NGK 9 and Trailing is NGK 7 - seems to be the other way round?!?!?!

Certainly when I took out mine it was marked 7 on the L plug and 9 on the T plugs.


Calling Mazda for you now in Melbourne...... it is ..... $75. each
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Old 07-18-2005, 02:14 AM
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Taka i was quoted $78 for trailing plugs and $ 44 for leading ones

Also according to this you need 3 different type of plugs .

1 RE7A-L leading side

2 RE6A-L leading side

1 RE9B-T TRAILING side


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Old 07-18-2005, 02:23 AM
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I will take 7A-L and 9B-T thx
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Old 07-18-2005, 02:25 AM
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Originally Posted by takahashi
I will take 7A-L and 9B-T thx

WHATS THE DIFFERENCE ???
hotter plug ?

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Old 07-18-2005, 02:38 AM
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You have to match the fuel that you are using. You are using 7L and 9T anyway, why go hotter plugs? Unless you are not fanging your car anymore than 6L will do.

If you have seen my plugs the L plugs came off second best to the T plugs.

Just go stock, or you are a rev head, get the Denso or NGK racing plugs which are 9L and 10T.
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Old 07-18-2005, 03:26 AM
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As I have said in another thread, Mazda Australia has replaced my spark plugs with modified version, to reduce exhuast gas emissions... not sure what type of modified plugs they have given me...
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Old 07-18-2005, 04:48 PM
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Finally found the site for NGK Australia.

http://www.ngkspark.com.au/



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Old 07-19-2005, 02:54 AM
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Originally Posted by [email protected]
As I have said in another thread, Mazda Australia has replaced my spark plugs with modified version, to reduce exhuast gas emissions... not sure what type of modified plugs they have given me...
Dealer said that they have now placed upgraded plugs in mine, as well as upgraded starter motor and upgraded battery. Apparently a directive from MA that older rx's are getting these upgrades to help with starting issues.
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Old 07-19-2005, 03:02 AM
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Originally Posted by lexic
Dealer said that they have now placed upgraded plugs in mine, as well as upgraded starter motor and upgraded battery. Apparently a directive from MA that older rx's are getting these upgrades to help with starting issues.

Can you get us a copy of the work they have done under warranty showing the directive from Mazda Australia ,

I WANT TO TAKE THIS UP WITH MY DEALER

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Old 07-19-2005, 03:13 AM
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Originally Posted by Lock & Load
Can you get us a copy of the work they have done under warranty showing the directive from Mazda Australia ,

I WANT TO TAKE THIS UP WITH MY DEALER

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michael
i'll have a look through the paper work that I have and see what it says, my dealer never gives me paper work for warantee stuff, but I have requested a copy. Will let you know.
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Old 03-11-2018, 01:53 PM
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I checked the resistance on the 4 plugs in my car and found 3 to be at 3.9 kilohms and 1 to be a 5 kilohms. Wondering if this could cause a mis? The spec range is 3 to 7.5 kilohms.
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Old 03-11-2018, 01:59 PM
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It's in spec, so I would look elsewhere for cause of misfire. Like the coils.
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