BMW Z3 Spark plugs seized

[RichardKings]

The spark plugs on my 2 ltr. are seized any ideas how to free them without having to take the head off would be appreciated.

 

[GazHyde]

Hi Richard,

Is there any movement in the spark plugs at all, and have you tried squirting some penetrating fluid on them yet?

 

[RichardKings]

Hi Gaz ,
There's about a 1/4 turn before they seem to lock up put penetrating fluid on them & at the time there was no change. The engineer I use is about an hour away from me so we have decided to leave it for a while & they will come out with the engine as hot as it will get after an hours drive, think that might work?

 

[GazHyde]

The other suggestion was to try and move them when the engine is hot, so hopefully that will help!

 

[RichardKings]

Thanks I'll let you know but I will wait until after my holiday.
Richard

 

[Cooper]

I have heard of people mixing diesel fuel with engine oil at a ratio of 1:1 and then applying a small amount and let it sit. This [apparently] frees up the most stubborn bolts and items.

 

[t-tony]

When you do it Richard, use a long a socket bar as you've got with as short an extension as you get away with and try to keep the socket and extension in line with the plug to avoid any side load which will snap the porcelain. You do not want any of that getting into the cylinders.

 

[RichardKings]

Thanks both I will try it all & keep everything crossed.
Richard

 

[phil.a]

coke cola good perpetrator leave it over night then work on tighten then loose tighten then loose, small turns at a time keep doing it

 

[RichardKings]

Thanks Phil

 

[oldcarman]

coke cola good perpetrator leave it over night then work on tighten then loose tighten then loose, small turns at a time keep doing it

If it works for this what's it do inside our systems??

 

[phil.a]

the same thats why your teeth fall out