Spark plug gap?
Safety Car
Joined: Nov 2000
Posts: 4,419
Likes: 6
From: Arroyo Grande CA
Re: Spark plug gap? (StoutMan)
http://www.acdelco.com/html/catalog/index.htm
Do not deviate from preset .040" (per above link)
[Modified by 2KFRC5, 6:58 PM 4/2/2004]
Do not deviate from preset .040" (per above link)
[Modified by 2KFRC5, 6:58 PM 4/2/2004]
Safety Car
Joined: Nov 2000
Posts: 4,419
Likes: 6
From: Arroyo Grande CA
Re: Spark plug gap? (birch64)
Qty Req Qty ACDelco Part# Description
IGNITION / SPARK PLUG
08 41-985 SPARK PLUG, IRIDIUM
GAP .040 DO NOT DEVIATE FROM PRESET GAP .040"
Above is copy/paste from ACDelco site.
Go to link, click on "Automotive Parts Search", enter your VIN or list your car, click on IGNITION, then click on SPARK PLUGS.
You should be there.
Don
IGNITION / SPARK PLUG
08 41-985 SPARK PLUG, IRIDIUM
GAP .040 DO NOT DEVIATE FROM PRESET GAP .040"
Above is copy/paste from ACDelco site.
Go to link, click on "Automotive Parts Search", enter your VIN or list your car, click on IGNITION, then click on SPARK PLUGS.
You should be there.
Don
Melting Slicks
Joined: Jan 2004
Posts: 2,284
Likes: 3
From: NW Chicago, IL/Clearwater Beach, FL
Re: Spark plug gap? (2KFRC5)
don,thanks for the info. found it just bought iridium plugs yesterday. i'll leave them at .040 (DO I HAVE TO RECHECK THEM OR SHOULD THEY BE SET AT .040 from the factory)? i have a 2000 coupe
Safety Car
Joined: Nov 2000
Posts: 4,419
Likes: 6
From: Arroyo Grande CA
Re: Spark plug gap? (birch64)
They're suppose to be preset from the factory.
I read a response from c4c5specialist saying that changing the gap could loosen the coating and accelerate wear.
Don
I read a response from c4c5specialist saying that changing the gap could loosen the coating and accelerate wear.
Don
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Thread Starter
Racer
Joined: Oct 2003
Posts: 429
Likes: 0
From: Chandler AZ
Re: Spark plug gap? (lostsoulny)
Don tks for the info. Went to the Delco site and yep, .40 gap. Some were at .40 but some were between .34-.35. So gaped em all at .40.
I had done a seach on the forum but only under recent topics, and not achived... Some great info there.
Thanks a lot to all for your input. Job done and car starts and sounds GOOD! :party:
3 too many beers to take it out for a test drive. Tomorrow my friend. :crazy:
I had done a seach on the forum but only under recent topics, and not achived... Some great info there.
Thanks a lot to all for your input. Job done and car starts and sounds GOOD! :party:
3 too many beers to take it out for a test drive. Tomorrow my friend. :crazy:
Melting Slicks
Joined: Jan 2004
Posts: 2,284
Likes: 3
From: NW Chicago, IL/Clearwater Beach, FL
Re: Spark plug gap? (2KFRC5)
hey don, talked with the dealer today were i bought the plugs, and he is telling me, chevy says the gap is to be between .058 and .060 ? she showed me the ac delco plug book and it says .060
[Modified by birch64, 2:00 PM 4/5/2004]
[Modified by birch64, 2:00 PM 4/5/2004]
Safety Car
Joined: Jul 2002
Posts: 3,874
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From: Fishing Somewhere Cold
St. Jude Donor '11-'12-'13, '15
Re: Spark plug gap? (birch64)
I just replaced my stock AC's with NGK TR55's. The stock ones looked fine and all the pucks were on(7k miles) but the gap on all of them was .057. The NGKS that were going in were at .050....They seem to be running fine.
Safety Car
Joined: Nov 2000
Posts: 4,419
Likes: 6
From: Arroyo Grande CA
Re: Spark plug gap? (birch64)
hey don, talked with the dealer today were i bought the plugs, and he is telling me, chevy says the gap is to be between .058 and .060 ? she showed me the ac delco plug book and it says .060
Don
