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+--- Thread: Seized spark plugs (/showthread.php?tid=29415)
Seized spark plugs - lolsteve - 25-02-2015
So I'm going to hazard an educated guess that the spark plugs in the MK2 will be a pain to get out. Any advice on what to pour into the spark plug wells to ease their removal also whether to do when engine is hot/cold/warm etc
Have seen people say yes to hot as it helps free them, no to hot as itll strip threads.
WD40, don't use WD40, a tablespoon of engine oil, compressed air etc etc
RE: Seized spark plugs - Toms306 - 25-02-2015
Small amount of diesel will run down the threads rather than wd40 which will evaporate quickly. Also yes do it when hot.
Are they known for seizing though? I've never cone across a seized spark plug yet...the above works well on seized glowplugs though should be the same!
RE: Seized spark plugs - lolsteve - 25-02-2015
So will engine oil do the same as the diesel? If I ran the engine so it all got warm to thin the oil out
Not overly sure but it's been sat unused for 18 months and from the looks of it I don't think this engine has had a lot of love so good chance they've been in there for longer than that so don't want to take any chances
A lot of other people complaining about spark plugs and ali heads reacting and seizing
RE: Seized spark plugs - Eeyore - 25-02-2015
Cement. I have heard if you put cement in the spark plug wells and then put a screwdriver in there then it will all set and you can turn it out.
Diesel may also work...
RE: Seized spark plugs - Jonny81191 - 25-02-2015
Any decent penetrating oil, like plusgas. Keep applying it for as long as you can before the job, and yeah, engine hot won't strip threads unless there's already a problem.
RE: Seized spark plugs - welshpug - 25-02-2015
nothing will help but a bit of engine heat.
RE: Seized spark plugs - Ruan - 25-02-2015
Lotions and potions will do a grand total of FA if they're stuck..
If they're done up anything more than finger tight, then do you really think a liquid is going to penetrate down the threads?! Course not - remember they form a gas tight seal against the combustion pressure, pouring anything on them is not going to do anything, it'll just sit at the top of the threads!
Exactly as welshpug says, get some heat into it, that's about the only thing you can do to help.
RE: Seized spark plugs - Paul_13 - 25-02-2015
(25-02-2015, 01:05 PM)Eeyore Wrote: Cement. I have heard if you put cement in the spark plug wells and then put a screwdriver in there then it will all set and you can turn it out.
That just made me laugh hard
RE: Seized spark plugs - Eeyore - 25-02-2015
(25-02-2015, 03:12 PM)Paul_13 Wrote:(25-02-2015, 01:05 PM)Eeyore Wrote: Cement. I have heard if you put cement in the spark plug wells and then put a screwdriver in there then it will all set and you can turn it out.
That just made me laugh hard
are you suggesting that my method is laughable?
RE: Seized spark plugs - lolsteve - 25-02-2015
Liquids must seep through though eventually as bluey used to leak oil from the cam cover down the spark plug chamber and it never filled up that much just a little around the base.
Will try it hot though just worried as would like to have to avoid recutting the threads or whatever. So good to know doing it while hot isn't a death sentence as some people have said
RE: Seized spark plugs - Piggy - 25-02-2015
(25-02-2015, 09:13 PM)lolsteve Wrote: Liquids must seep through though eventually as bluey used to leak oil from the cam cover down the spark plug chamber and it never filled up that much just a little around the base.
Will try it hot though just worried as would like to have to avoid recutting the threads or whatever. So good to know doing it while hot isn't a death sentence as some people have said
if bluey let oil into the chambers via the spark plugs...that maybe why she was down on power!
RE: Seized spark plugs - Jonny81191 - 25-02-2015
Sorry Steve, but that's not possible.. if oil's able to get past the spark plugs they'd blow out every time you cranked it over!
RE: Seized spark plugs - lolsteve - 25-02-2015
Well the oil was going somewhere :/ it stopped leaking after the HGF rebuild where it all got sealed up but before then there was bathroom sealant in the chambers to stop it pouring down.
RE: Seized spark plugs - procta - 26-02-2015
(25-02-2015, 01:02 PM)lolsteve Wrote: So will engine oil do the same as the diesel? If I ran the engine so it all got warm to thin the oil out
Not overly sure but it's been sat unused for 18 months and from the looks of it I don't think this engine has had a lot of love so good chance they've been in there for longer than that so don't want to take any chances
A lot of other people complaining about spark plugs and ali heads reacting and seizing
steve I think your worrying over nothing, just let it warm up and then remove them as you would normally. Don't use the stuff off blueys engine. Just Buy the upgraded stuff like I have done, I did pm you the site I use for mine. Also give it a f*ck off service too! coolant the lot.
(25-02-2015, 09:35 PM)lolsteve Wrote: Well the oil was going somewhere :/ it stopped leaking after the HGF rebuild where it all got sealed up but before then there was bathroom sealant in the chambers to stop it pouring down.
More evidence of a botched up job, no the wonder that car wasn't working well!
RE: Seized spark plugs - RetroPug - 28-02-2015
If they were installed properly by the last person the copper washer shouldn't have let any moisture in and should be fine. If you install spark plugs as per the instructions and do not over tighten them, merely tighten them until the washer is crushed then they should also come out.
The problem is previous owners have sometimes done them up to FT spec.
RE: Seized spark plugs - welshpug - 28-02-2015
not forgetting bog standard dissimilar metal corrosion.
RE: Seized spark plugs - RetroPug - 01-03-2015
True. Hopefully if they've been out in the last couple of years they shouldn't have gone too crusty but then them having been changed by a previous owner is never a guarantee sadly.
RE: Seized spark plugs - lolsteve - 01-03-2015
Considering the fuel filter was original Im not holding much hope. will see if I can crack them off maybe a 1/4 turn then try the penetrating fluid/oil method and leave to soak for a bit as luckily not so desperate for the car as a daily
RE: Seized spark plugs - RetroPug - 02-03-2015
Every spark plug I've ever removed wound out fine after initially cracking it off.
I think you'll find that's the hard part! If not, good idea though.
RE: Seized spark plugs - lolsteve - 10-03-2015
Just as an update:
Went to crack the spark plugs off and fill them with wd40 tonight after driving it back from work.
As I was preparing myself for a real fight I found the first plug to come undone with nothing more than a gentle breeze, okay I thought don't fully remove it just yet just a quarter of a turn and leave it overnight
Next one was the same, as was the 3rd and 4th.
Turned out to be the easiest set of spark plugs ive changed
Was needless worrying.Next set was put in with some copper grease on the threads and done up by hand (with a final quarter turn on the ratchet) to prevent cross threading.
Well chuffed
RE: Seized spark plugs - Pug0BZ3011 - 10-03-2015
(10-03-2015, 07:29 PM)lolsteve Wrote: Just as an update:
Went to crack the spark plugs off and fill them with wd40 tonight after driving it back from work.
As I was preparing myself for a real fight I found the first plug to come undone with nothing more than a gentle breeze, okay I thought don't fully remove it just yet just a quarter of a turn and leave it overnight
Next one was the same, as was the 3rd and 4th.
Turned out to be the easiest set of spark plugs ive changed
Next set was put in with some copper grease on the threads and done up by hand (with a final quarter turn on the ratchet) to prevent cross threading.
Well chuffed
The set in my mk2 golf came out dead easy and they were in there for roughly 20 years lol one of those thing that you wonder what you were shitting yourself over lol
RE: Seized spark plugs - kee616 - 10-05-2015
(10-03-2015, 07:29 PM)lolsteve Wrote: Just as an update:Glad it all worked out in the end
Went to crack the spark plugs off and fill them with wd40 tonight after driving it back from work.
As I was preparing myself for a real fight I found the first plug to come undone with nothing more than a gentle breeze, okay I thought don't fully remove it just yet just a quarter of a turn and leave it overnight
Next one was the same, as was the 3rd and 4th.
Turned out to be the easiest set of spark plugs ive changed
Next set was put in with some copper grease on the threads and done up by hand (with a final quarter turn on the ratchet) to prevent cross threading.
Well chuffed
