Spark Jumping to Headers

frank213

New Member

Jun 8, 2006

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Feb 15, 2007

#1

• Feb 15, 2007

• #1

please help me two months ago i was inspecting in the night spark plug leaks when i noticed a blue real small Spark Jumping to the Headers from all 8 sparkplugs mostly from spark plug #1, since 2 months ago i have changed the spark plug wire like 5 times and i still get the same problem...its become real expensive replacing the plug wires, dos any body know what could be cussing this problem... i herd from friends that it could be my head valves cussing the problem if they where not properly adjusted ( i had my push rods replaced like six months ago)

 

eagleautosports

New Member

Jul 7, 2006

139

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Mebane NC

Feb 15, 2007

#2

• Feb 15, 2007

• #2

5 new sets of wires? I had that problem but I only had to replace it once. My problem was the header heat causing the boot to crack. I got some boot protectors and haven't burned any more wires. Whether or not that would help you, I don't know. I hope you're not getting the cheapo Auto Zone brand wires. Maybe some boots that are the Vari-Angle type would help? That way you can direct the boot itself further away from the header tube.

 

frank213

New Member

Jun 8, 2006

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0

Feb 15, 2007

#3

• Feb 15, 2007

• #3

ive replaced them with some msd 4 times and the current one that i have is ford racing. i checked the boot and it looks ok no cracks

 

frank213

New Member

Jun 8, 2006

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Feb 15, 2007

#4

• Feb 15, 2007

• #4

i dont know if this helps but the spark is not going threw the boot plastic, its going out threw the middle of the boot and the spark plug

 

eagleautosports

New Member

Jul 7, 2006

139

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Mebane NC

Feb 15, 2007

#5

• Feb 15, 2007

• #5

Might check to make sure the clip inside is actually going over the plug, not beside it inside the boot then. That's real easy to do and might cause this. I've done that but knew it and redid it.

 

frank213

New Member

Jun 8, 2006

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Feb 15, 2007

#6

• Feb 15, 2007

• #6

I originally checked for that when I notice the problem 2 months ago, I just don’t know what ells to check for

 

95cobraguy

Member

Dec 23, 2005

637

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19

Concord, NC by way of LI, NY

Feb 16, 2007

#7

• Feb 16, 2007

• #7

make sure the wires are fully seated on the plugs and make sure the plugs are tight in the head.

 

divit250r

Member

Mar 31, 2005

314

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16

Columbia City, IN

Feb 16, 2007

#8

• Feb 16, 2007

• #8

Make sure the plugs are gapped correctly too, if they're too wide, it may be easier for the spark to jump to the headers.

Scott

 

frank213

New Member

Jun 8, 2006

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Feb 27, 2007

#9

• Feb 27, 2007

• #9

thanks guys, i changed the spark plugs this weekend. i had the autolite Double Platinum spark plugs for 3 months on the car and changed them for the motorcraft oe style plugs and it fixed the problem......my budy was telling me that platinum spark plugs in a mustang is a real bad idea? is that true

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

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129

Feb 28, 2007

#10

• Feb 28, 2007

• #10

frank213 said:

thanks guys, i changed the spark plugs this weekend. i had the autolite Double Platinum spark plugs for 3 months on the car and changed them for the motorcraft oe style plugs and it fixed the problem......my budy was telling me that platinum spark plugs in a mustang is a real bad idea? is that true

Click to expand...

Yes, plats kinda suck. They don't conduct nearly as well as copper but they do last forever. As a result, spark will try to find an easier path to earth.

EFI 5.0's occasionally have a slightly lower idle with plats, and they can have a cut-out at about 4K RPM.

Good luck.

 

Black95GTS

Active Member

Jan 8, 2004

1,644

3

38

Marlborough, MA

Feb 28, 2007

#11

• Feb 28, 2007

• #11

frank213 said:

thanks guys, i changed the spark plugs this weekend. i had the autolite Double Platinum spark plugs for 3 months on the car and changed them for the motorcraft oe style plugs and it fixed the problem......my budy was telling me that platinum spark plugs in a mustang is a real bad idea? is that true

Click to expand...

My car actually came with platinum spark plugs when I bought it. A thorough tune up was one of the first things that I did along with replace the coil with a 45KV unit.

I noticed a butt dyno improvement when revving it out, which I attributed to the new coil, but the more I think about, it might be from throwing in regular old autolites at .54.

Now, on the other hand, my friend has a Jeep Cherokee that he claimed improved performance wise with the addition of platinum plugs.

Adam

 

sade04

Member

Sep 13, 2004

97

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6

Lansdale, PA

Feb 28, 2007

#12

• Feb 28, 2007

• #12

HISSIN50 said:

EFI 5.0's occasionally have a slightly lower idle with plats, and they can have a cut-out at about 4K RPM.

Click to expand...

+1000000 When i got my car it had overgapped bosch platinums....right around 4200rpm the car would fall flat on its face.