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| Tips and Maintenance Post helpful tips, maintenance guides and R&R procedures here (for both Pontiac Grand Prix and Oldsmobile Intrigue) |
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#1
05-02-2009, 12:34 PM
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Spark Plug Tip Diagnosis
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-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<----- 
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#2
05-02-2009, 01:40 PM
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Re: Spark Plug Tip Diagnosis
Nice straight forward diagnostic tip. Everyone should have this. It is all to often that we predict the worst before we start with the basics!
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#3
05-02-2009, 06:30 PM
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Re: Spark Plug Tip Diagnosis
I prefer the one by NGK.
NGK How Do I Read a Spark Plug What is interesting is I've never had a plug look like what is in Photo 1 of the Autolite reference including running VP Racing unleaded race fuel. Normally the ceramic insulator is a lot lighter and never a tan color as shown. More towards grey/white. 
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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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#5
05-03-2009, 11:54 AM
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Re: Spark Plug Tip Diagnosis
Quite interesting Bob,
One question, did you open that gap up on your plug? Or is that how it looked when it came out? Should I gap my TR6IX's to .060" or .055"?
__________________
-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<-----
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#6
05-03-2009, 12:11 PM
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Re: Spark Plug Tip Diagnosis
Probably just an optical illusion Tim. The gap was right on at .060". These were the Delco OE double platinums (41-921) that I replaced on my Regal GS. You can see the tit on the negative electrode which has to be used or in the equation to gap the plugs properly at least on the Delco double platinums. I now use NGK TR55IX Iridium on it and the negative electrode is fully adjustable and without the tit.
Gap the TR6IX to .055" since you have a SC pulley mod.
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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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#7
05-03-2009, 12:31 PM
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Re: Spark Plug Tip Diagnosis
Sounds Good! Thanks!
__________________
-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<-----
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