Permatex liquid metal used to fill tiny pits on hydrauli

Geo-TH,In

Well-known Member

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cvphoto134182.jpg

You can feel the imperfections in the rod
better than you can see them.

I used 600g for my final sanding.
I held sandpaper against the rod using the
flat metal tool.

I enlarge this pic.
You can't feel the pits filled with liquid
metal.

Don't get nervous.
All fluid
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Returning to the tank must pass through
the hydraulic filter.

I think this will work on my cylinder rods
which were damaged before I bought the
terramite.

I've tried epoxy. Doesn't work.

Do you use anything better than permatex
liquid metal?

I let the liquid metal cure for a week
before sanding.
 
I can't recall the name or who posted, maybe more than one...

Some kind of super military aircraft epoxy, supposed to be the best of the best!
 

"All fluid Returning to the tank must pass through
the hydraulic filter."

Your statement may be correct for the filtration arrangement of your system, but the oil goes through the filter [u:c25bd483b0]after[/u:c25bd483b0] it passes out of the cylinder and through the control valve. Both of which can suffer damage from foreign materials in the oil.

I do hope it stays in place and works for you.
 
I knocked all the jb weld off stab cyl rod that someone put on there to replace the worn chrome. Cyl had fresh rebuild, jb sluffed off and wiped out rod seal. See how bad leaks in morn at worn spot after my reseal job.
 
You seriously think a piece of liquid metal that is smaller than
a grain of dirt will damage anything?

You need to look inside your hydraulic sum.

The oil coming out of my transmission doesn't go through the
filter.

My sump is full of metal filings that I can't flush all them out
when I change fluid.

Those filings haven't damaged anything..

I put a magnet inside my hyd sump.

I'm not the least bit concerned the tiny amount of liquid metal
will damage anything.

If it were to break loose from the rod, a good chance it will
forced pasted the U seal as the rod extends.
 
(quoted from post at 21:28:39 08/25/22) You seriously think a piece of liquid metal that is smaller than
a grain of dirt will damage anything?

You need to look inside your hydraulic sum.

The oil coming out of my transmission doesn't go through the
filter.

My sump is full of metal filings that I can't flush all them out
when I change fluid.

Those filings haven't damaged anything..

I put a magnet inside my hyd sump.

I'm not the least bit concerned the tiny amount of liquid metal
will damage anything.

If it were to break loose from the rod, a good chance it will
forced pasted the U seal as the rod extends.

Yes, I seriously think a piece of liquid metal that is smaller than a grain of dirt could damage something. If a piece forces out by the U seal it will impart some damage, just as if it stays inside the cylinder caught in the piston packing or gets between the spool and its bore in the valve. It may not be major, just as the fines you see in the bottom of a sump might not be major. They are however signs of contamination and wear. You said all the oil has to go through the filter to get to the tank. The filter has a micron rating and will allow particles smaller than its rating through. Those particles create wear over time, or things would never wear out. The more particles, the more wear. My point was you missed a couple vital parts of the hydraulic system the oil passes through before it ever goes through the filter, so any larger particles in the oil from the cylinder pass through them before being caught in the filter.

Seriously, I do hope your repair works for you. Any such repairs I have seen tried over the years have not held up, but I was around production machines. Your machine use may be light enough to get by for you, at least for a time.
 
Look here called Belzona. I typed in a search..best wearing Belzona.. it took me to the page in the link. I know about it because I have seen there products used in the refinery I work in. Not cheap.
Poke here
 
And to properly use the Belzona 1111, one will need to further deepen and rough those pits, as well as purchase and use the proper prep products. Belzona products are good but must be applied properly (following Belzona's instructions) and are not cheap to use.

Belzona 111 Instructions for use

When one cannot get a new rod from a dealer the best fix, for a small rod like George's, is to find a shop that can make a new rod, using the old one as a pattern, to replace the old rod. JMHO
 


I successfully filled pits on the power steering rod on my Ford 901 some years ago. I used JB weld. I firmly believe that it is all in the prep. Nothing will stick to oil. I cleaned them out aggressively. I wouldn't put a rod in a lathe and sand it. It may be quick and easy, but you may just as well throw the rod out as sand the chrome off it, LOL. It is much better to apply the filler with something like a tooth pick only where needed instead of slathering it on. Expend the needed time and effort to smooth just the needed area. Taking the needed time and expending the needed effort can make the difference in many repairs.
 
My problem, no one in my hood makes rods.
I think my cylinders are made in England. It has British
threads. I have to have hoses made with British threads..

I have used aftermarket cylinders and bought adapters.
One special cylinder cost me $600 from the factory. The special
cylinder has ports in unusual positions. Terramite has gone out
of business. So if I have to replace the other special cylinder,
I'll have to weld a port in the unusual place on the new
cylinder.

That might cause a problem. The cylinders need to match the
force.
 

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