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Ick... spark plugs (Read 1170 times)
slinger569
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Ick... spark plugs
Jul 7th, 2019 at 5:45pm
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So I completed a tune-up the other day. The last one was performed by the previous owner about 5 years and roughly 5k miles ago. I really don’t drive the car as much as I should. Anyway I was a bit in awe when I saw the condition of these plugs and began worrying that there maybe a problem (but I tend to be a worry-wort). Anyway all 4 plugs have a bit of oil on the threads, especially 3&4... also there’s like a rusty appearance to 3&4...

Any thoughts?


« Last Edit: Jul 7th, 2019 at 11:15pm by slinger569 »  

Dave
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T_Ryan.
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Re: Ick... spark plugs
Reply #1 - Jul 7th, 2019 at 6:54pm
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personally, I am not a fan of platinum plugs that are tuned for CO%s that are relatively high compared to todays emissions. there ok if its a tier 1 around 0.1 to 0.3%

champions aren't....unless its a lawn mower))lol

I do like the triple and quad electrode plugs in big cylinders for better cold starts but the copper core ngk or bosch are ideal for vintage cars two liter range.
  
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slinger569
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Re: Ick... spark plugs
Reply #2 - Jul 7th, 2019 at 7:11pm
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Funny I haven’t seen a Champion spark plug in ages. Totally forgot about their existence. 
The old plugs were from the PO..
I got a new set on Bosch from Ian/Steve a month or so ago. I just got around to putting them in. That darn spring loaded screw on the cap/rotor is a PITA...
  

Dave
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T_Ryan.
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Re: Ick... spark plugs
Reply #3 - Jul 7th, 2019 at 9:24pm
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if you have cam cover seals for the plugs (ie a 16v), they might need a check or the PO might have never seized the threads last time.

back in high school my roommate had a fiat 124 spyder among other rides...saab 900 and a 455 oldsmobile block trans am. cool car but the plugs holes always filled with oil. even with fresh gaskets.
  
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pfarah77
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Re: Ick... spark plugs
Reply #4 - Jul 8th, 2019 at 12:55pm
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David,

Just install the new plugs (verify gap) and inspect the plugs after driving her for a while. See if there are any changes in condition Good luck bud!

You can always get rid of the car (to me of course) and be done with it... Wink
  

Patrick
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slinger569
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Re: Ick... spark plugs
Reply #5 - Jul 8th, 2019 at 1:10pm
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LOL...

Funny you mention the gap... PO had #1 & #3 gaped at .040 and #2 & #4 at .045...   Shocked
Got the new ones gaped at .028 because of the added boost and fuel.. Probably drive the car a bit over the next few weeks and re-check them.


  

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OhioTom
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Re: Ick... spark plugs
Reply #6 - Jul 8th, 2019 at 5:16pm
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those plugs coming out look normal to me.

I have not had luck running platinums in my Porsches. They didn't last very long.

I just stick to stock Bosch part numbers. Seem to work the best.

Always: use anti-sieze on plug threads in aluminum heads.

Rust on base of plugs is normal.

  

Tom Simpson&&VW/Porsche freak.
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slinger569
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Re: Ick... spark plugs
Reply #7 - Jul 8th, 2019 at 5:22pm
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OhioTom wrote on Jul 8th, 2019 at 5:16pm:
those plugs coming out look normal to me.

I have not had luck running platinums in my Porsches. They didn't last very long.

I just stick to stock Bosch part numbers. Seem to work the best.

Always: use anti-sieze on plug threads in aluminum heads.

Rust on base of plugs is normal.



Thanks Tom....
I had read that the platinum plugs and the ‘multi-prong plugs’ can cause headaches. New plugs are from Ian so I know he won’t steer me wrong.
Thanks!

  

Dave
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