Thread: Removing rusted polar mount from rusted pole?

I just got a second hand C band dish and the poloar mount is rusted to the pole were the polar mount slips over the pole. Its rusted really bad and will not turn at all. I was wondering if there is any way to seperated them. I was thinking of using PB Blaster or Kroil. Would either of those two work on a 3.5 inch diameter pole.

Originally Posted by CFreak

I just got a second hand C band dish and the poloar mount is rusted to the pole were the polar mount slips over the pole. Its rusted really bad and will not turn at all. I was wondering if there is any way to seperated them. I was thinking of using PB Blaster or Kroil. Would either of those two work on a 3.5 inch diameter pole.

I use Kroil, Sili-Kroil or Aero-Kroil! They are all great products and have freed up things that I never thought was possible! Take the bolts out and spray in the holes and let it sit for a while and reapply if necessary. Give it a twist and it should come off. I never had too great of luck with PB Blaster, it is on my shelf sitting with the WD40! Oh, on second thought, PB Blaster is great for killing bees in the feedhorn cover!

Besides the penetrating oil you might try hitting the outside of the pole mount with a heavy hammer(like a 4lb drilling) to jar the rust loose. Put a big wrecking bar thru the upper brackets(with the bolt in it so it stays aligned) to get more leverage to break it loose too.

I read on the forum a few years back that PBblaster was good.
The instructions DO say to spray it on, wait a bit, and then beat the crap outta things!
I tried it, and it seemed to work fine for me.
But I think most of the product evaporates within a 10-15 minutes, so use it accordingly.

Nice to hear about Kroil, Sili-Kroil and Aero-Kroil.
I'll have to look at it and give it a try.

edit:
Little Googling, and I found this posted in 2004 on another forum:

I've used Kano-Kroil for years now, I recently found Aero-Kroil @ Napa.
We used it to take the bolts off of old tractors.
I believe it's about as good a penetrating oil as you can get.
I also use PB blaster, and Marvel penetrant, but I like Kroil the best.
If the nut/bolt is huge, let it go a little while, or overnight for best results.
Cabela's also has it.

Originally Posted by Anole

Nice to hear about Kroil, Sili-Kroil and Aero-Kroil.
I'll have to look at it and give it a try.

Kroil is great but when Sili-Kroil came out it seemed even better! I cannot notice much difference between the Sili or the Aero, they all work! We order factory direct and they have some great deals now and then and offer a line up of other great products too. The company name is Kano and they are located down south in Tennessee if I remember right. They offer product in bonus size aerosol cans individually or by the case and we get a 5 gallon can once in a great while!

Did try PB Blaster and it did not worked. But to be fair the pole and the bottom part of the monunt are fused toghter by rust. Thats the best way I can describe it. I called all the stores in my area and only one sells kroil but they were out of stock. I can always order it online but I am going to hold off on that for now. I don't think kroil will be that much better if at all than PB Blaster. I was thinking it might take some kind of blow torch or something to get rid of the rust.

Heat works wonders but be very careful if using a torch where you have already used penetrating oil!

"Heat works wonders....."
Yes it does!
To help draw the Lube up, apply the heat away from where you are applying the Lube.

The securing bolts distort the mount tube into a rounded triangle shape when tightened. The areas in between these will be closer to the pole & are more like to bond with rust.
Apply heat to the areas between the bolts vertically in a slow, steady up & down motion. If your MAPP gas torch doesn't provide enough heat(dull red glow) then borrow an oxy-acetylene set, attach the cutting head or a small rosebud tip. The mechanics "heat wrench" will loosen almost anything.
Then put a long bar thru the top brackets for leverage & twist.