removing fan switch

[roy]

Need some adivce, I can't remove the fan switch at the bottom of the rad. I've soaked it in penetrating lube with no luck. I'm afraid to apply to much pressure as I can see the housing bend on the rad. Any ideas on how best to free this up?

[So Cal Mark]

a sharp rap on the wrench is better than steady pressure

[Kent124]

What size wrench are you using? I don't have anything big enough to remove mine.

[roy]

I've been tapping it with a hammer I'll try a little sharper blow. At this point i'm using a crescent wrench.

[Fiat88]

I used a plumbers wrench to get mine out. Mine was easy to remove, though.

[BEEK]

as mark said, do not twist as this will usually result in you twisting the bung out of the radiator. use a cressent wrench and smack it with a hammer, then it will come out, it is not to be installed very tight, just snug enough to seat the crush washer

[RRoller123]

Rarely mentioned is that when you apply penetrating oil, the junction should be tapped lightly with a hammer. The slight shock actually causes the oil to penetrate down into the threaded joint. It seems loopy but it really makes a difference. Squirt it on, tap it a few times, sharply, wait a minute, and it will perform better.

Pete

[carl]

If the above ideas fail, bite the bullet, remove the radiator, get the right size socket and hit it with an impact gun.

carl