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CACL2 Corrosion

D

dpendzic

Well-known Member
Had both front and rear rims corrode thru on my tractor--front--no Calcium Chloride and rear-75% fill.
They corrode thru at the valve stem area--since the front rims corroded very similar to the rear rims is this more due to water and mud getting in around the valve stem hole? along with concentrated stress that occur at a hole?
Would it be helpful if i silicone sealed the valve stem in?
 
Don't know about that,but the tire guy here uses a flat brass bushing of some sort. I don't know where he gets them,but he just drills the hole out a little bigger for the bushing to fit,then there's a nut on it to tighten it in.
Not sure if this thing from Gemplers is it or not,but it looks something like that.
Spud
 
(quoted from post at 14:51:08 02/27/14) Don't know about that,but the tire guy here uses a flat brass bushing of some sort. I don't know where he gets them,but he just drills the hole out a little bigger for the bushing to fit,then there's a nut on it to tighten it in.
Not sure if this thing from Gemplers is it or not,but it looks something like that.
Spud
Click to expand...
That one is to change it to tubeless, Randy, which is a good idea to do.
 
Well it would make sense that the valve stem hole would be where corrosion would concentrate, regardless. That's where the steel is most exposed. That sharp edge around the hole. It's a place for moisture and salt to get trapped.
 
Ive seen something similar of what was mentioned. I think it was just a plastic insert that goes over the valve stem before you install it. It protects the valve stem from the edge of the rim.
 
Your valves are leaking sometimes they do need replacing. Jack up the rear and run the valve to the top then you can replace it without losing fluid you will loose air but the tire can be pumped up again after a new assy is put on.
 

Well, that just proves how corrosive CalCl2 really is. It will rust out a rim that is nearby, without contact.
 
I just got a used rear rim ---had minor pitting inside the valve area---so i gave it 2 good coats of cold galvanizing, then skim coated the pitting area with JB weld, and then 2 complete coats of rustoleum the whole inside area of rim.
will paint the outside both sides with rustoleum and silicone in the tube valve.
 
(quoted from post at 18:14:00 02/27/14) I just got a used rear rim ---had minor pitting inside the valve area---so i gave it 2 good coats of cold galvanizing, then skim coated the pitting area with JB weld, and then 2 complete coats of rustoleum the whole inside area of rim.
will paint the outside both sides with rustoleum and silicone in the tube valve.
Click to expand...

I hope that if there were any pits that you got the rust out of them before applying the cold galvanizing.
 
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