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Topic: Tune-Up ( Spark Plugs )

in Forum: C4 Engines


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Tune-Up ( Spark Plugs ) (1/12)
 5/3/13 1:33am
Big Mike 49
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San Jose, CA - USA

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I'm in the process of giving my C4 a Tune-up, I need opinions on Spark plugs... AC Delco are the most logical choice . But  from what my  local parts folks say ,is that I can only use platinum plugs on Aluminum heads.....is there any truth to that?  The Cap & Rotor seems to be a tight fit , Is there anything I need to removed other then the  Aluminum cover?   Also I plan on changing the fuel filter .....Were would it be @ under the chassis & how hard is it to get too & swap? Any and all Advise & opinions will be  appreciated

Thanks Smile


|UPDATED|5/2/2013 10:33:16 PM (AZT)|/UPDATED|


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Re: Tune-Up ( Spark Plugs ) (2/12)
 5/3/13 10:18am
djsroknrol
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What year is she? Wink
 
 The difference between copper and platinum plugs is how long they last from what I've been told. If you have to tear half the engine out to change them, it's worth it....


|UPDATED|5/3/2013 7:18:11 AM (AZT)|/UPDATED|


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Re: Tune-Up ( Spark Plugs ) (3/12)
 5/3/13 12:26pm
Adams' Apple
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The material the head is cast from don't know what material the center electrode of the sparkle plug is made from....nor does it care.
You can use platinum plugs if you want, but it is NOT mandatory....someone is just trying to sell you higher priced plugs....that's all.

The fuel filter should be on the passenger side, bolted on the inside of the "frame", just behind the pass side front wheel. You'll have to jack the car up to get to it. Be sure to use jack stands before getting under the car.  Thumbs Up


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Re: Tune-Up ( Spark Plugs ) (4/12)
 5/3/13 11:32pm
Big Mike 49
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It's a 1988 Big smile



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Re: Tune-Up ( Spark Plugs ) (5/12)
 5/3/13 11:33pm
Big Mike 49
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Thanks Joel Beer



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Re: Tune-Up ( Spark Plugs ) (6/12)
 5/6/13 12:53pm
tbirdsps
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Whatever plugs you use is up to you.  Regardless of heads (aluminum or iron) use anti-sieze compound on the threads.  Mandatory on aluminum but just smart on iron.

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Re: Tune-Up ( Spark Plugs ) (7/12)
 5/6/13 7:02pm
Big Mike 49
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Thanks  Tbird.... I changed the  plugs , Wires  ,Cap & Rotor ..... I will do the fuel filter next  , Special thanks to all of you whom replied.Clap



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Re: Tune-Up ( Spark Plugs ) (8/12)
 6/30/13 11:15am
Djennings
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Mike
 
I only use Bosch Platinum +4 in my "93". She loves these and I have had no problems with them. Just use a anti-sieze as you would with any steel on Aluminum
Re: Tune-Up ( Spark Plugs ) (9/12)
 6/30/13 9:53pm
Big Mike 49
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Thanks  Djennings  , I went with Autolite Plats ...Thanks  for sharing  you view , I am keeping notes for  future tune-ups



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Re: Tune-Up ( Spark Plugs ) (10/12)
 6/30/13 10:01pm
davep85c4
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If you use anti-seize on the plugs, be very careful about getting it on the taper or gasket. It may make the plug come loose.

I work on boats and yachts. I've removed thousands of plugs from engines. There are various combinations of plug shell material/head material. Some are more prone to corrosion and seizing than others. Here's a list in descending order of combinations most likely to have seizure problems. I don't bother with anti seize on the last two. They never seize.

Stainless plugs in aluminum heads.
Steel plugs in iron heads.
Steel plugs in aluminum heads.
Stainless plugs in iron heads.
Re: Tune-Up ( Spark Plugs ) (11/12)
 7/1/13 12:43pm
martone_1
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Fernandina, FL - USA

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this is just my 2cents worth. I went with the E3 spark plugs. I get about three to four miles to the gallon better milage. And I don't smell the catalitic conv. as much as I did before. so I would recommend atleast trying them to see if you like them.
Re: Tune-Up ( Spark Plugs ) (12/12)
 7/1/13 11:29pm
Big Mike 49
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I'll look into getting some of those next tune up  ....Thanks for sharing 




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