Ok, so this morning I decided to tackle glow plugs on my CDI. Sprayed them with liquid wrench waited for an hour and started with the second glow plug from the front of the engine, just too see if it will budge.
No, way the glow plug seemed frozen, I did not force it and tried another one to my surprise it budged, I slowly started unbolting..it was creaking a bit so I went very slowly. Then tried another one, success, then another one and was able to unbolt and remove 5 glow plugs pretty easily!
Now the only one that's left is the first glow plug I tried unbolting, I applied considerable force to it with a small wrench, not even a slightest movement. BTW the glow plugs looked very clean without any carbon build up on them.
Funny thing is that the glow plug I am trying to unbolt is one glow plug that has been replaced by the dealer 40k miles ago! Bastards probably torqued it down!
So now what do you suggest I do:
1) Replace 5 glow plugs and forget about this one since it's probably still good.
2)Let it soak for a bit longer and try a bigger wrench?