Hey, what are spark plugs supposed to be torqued to...?
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Cadillac Seville / Cadillac Eldorado Forum Discussion, Hey, what are spark plugs supposed to be torqued to...? in Past Cadillac Vehicle Discussion; Cuz I'm pretty sure it ain't this... I needed a breaker bar to get it outta there- I'm kinda scared ...
  1. #1
    consigliori's Avatar
    consigliori is offline Cadillac Owners Fanatic
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    Cuz I'm pretty sure it ain't this...



    I needed a breaker bar to get it outta there-
    I'm kinda scared to do the others now. I was just curious, I haven't changed them in this car before, but - sheesh!

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    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Hey, what are spark plugs supposed to be torqued to...?

    Use a tiny smear of anti-seize on the first 3 plug threads and torque the plugs to 13 lb/ft. (Service manual spec.) Gap is .050".

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    Ranger's Avatar
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    Re: Hey, what are spark plugs supposed to be torqued to...?

    I never use a torque wrench. I torque 'em to snug.

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    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    Quote Originally Posted by consigliori
    Cuz I'm pretty sure it ain't this...

    I needed a breaker bar to get it outta there-
    I'm kinda scared to do the others now. I was just curious, I haven't changed them in this car before, but - sheesh!
    Ummm, these were in your engine like that? You didn't notice the misfiring???

    ----------

    Quote Originally Posted by Ranger
    I never use a torque wrench. I torque 'em to snug.
    "Snug" isn't very precise unit of measurement. I would recommend using the German scale of Goodentight.

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    consigliori's Avatar
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    Quote Originally Posted by MoistCabbage

    Ummm, these were in your engine like that? You didn't notice the misfiring???
    I didn't. I'm not sure it was - that was #6's plug, I really wasn't even planning on changing em, I just happen to be right there and was curious so I pulled it. I just swapped it for a plug from the '98 for now, less than 5k on em so kinda new-ish I guess. I had to pull another after discovering that though. I pulled #4 and it was completely covered in oil ! Craptastic. It wasn't smashed on the end or in so tight as to require a breaker bar so I guess that's a little better... maybe. This wasn't going to well. I pulled #2 and it was ok, same with #8

    I stopped there for the time being because I got more pertinent issues right now (starting a new thread about it in a few)

    Would that plug definitely be misfiring in that condition? I've never had any codes for anything like that.
    And it's been in there for two years or something ever since i bought it at the Cadillac dealership.... Crazy, huh. At least they all weren't like that, who knows about the other four though

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    Ranger's Avatar
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    Re: Hey, what are spark plugs supposed to be torqued to...?

    Would that plug definitely be misfiring in that condition?
    "Definitely"? No.

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    Submariner409 is offline If it won't run, chrome it
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    Re: Hey, what are spark plugs supposed to be torqued to...?

    Quote Originally Posted by Ranger View Post
    "Definitely"? No.
    But with the ground electrode smashed and bent sideways like that "Probably" Yes.

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    Ranger's Avatar
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    Re: Hey, what are spark plugs supposed to be torqued to...?

    But it's been like that for 2 years with no noticeable misfire. Maybe the spark is jumping sideways instead up down.

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    Crazy_Jake is offline Cadillac Owners Member
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    Re: Hey, what are spark plugs supposed to be torqued to...?

    I don't think that's from being overtorqued. The electrode shouldn't bottom out on the cylinder head. Maybe it got too hot and soft and "melted" like that. Or whoever put it in dropped it beforehand and said "fook it".

  11. #10
    MoistCabbage's Avatar
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    Quote Originally Posted by Ranger
    But it's been like that for 2 years with no noticeable misfire. Maybe the spar is jumping sideways instead up down.
    It looks like it's touching. If it's not, it's a hairs width.

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    Crazy_Jake is offline Cadillac Owners Member
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    Re: Hey, what are spark plugs supposed to be torqued to...?

    Quote Originally Posted by MoistCabbage View Post
    It looks like it's touching. If it's not, it's a hairs width.
    Yeah, you can see in the first photo that it has been arcing to the side of the electrode. Again, I don't think over-torquing caused that.

  13. #12
    Ranger's Avatar
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    Re: Hey, what are spark plugs supposed to be torqued to...?

    Hard to tell, but if it was touching, he'd of had a dead cylinder and I would suspect he would have noticed that sometime during the two years, wouldn't you think?

    Torque had nothing to do with it.

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