Solder in a stripped zerk???

[RNeumann]

I’ve never disassembled anything when retapping a broken zerk. This is a tractor FEL etc- not some aerospace thing with tolerances down to the 10,000th. A few metal chips will blow through with a few pumps of grease. U can stick a magnet to your tap if u r really worried.

 

[square1]

Wouldn't think you could ever get and keep (grease is going to flow when you heat it up) the metal clean enough to braze without disassembly. Re-tap it, use a helicoil if going the next zerk size up isn't an option.

 

[zzvyb6]

I would just pein it a few times with a hammer or even hit the hole with a center punch a few times. Then install a new Zerk (or even the old one. A grease gun ought to have enough grunt to fill the pin slot without blowing the Zerk out or all the charge grease. I have several in a kit which look like they were self tapping with a graduated thread diameter. Look around for old machinery to borrow one from.

 

[Oldoak]

Good luck with your chewing gum since you tend to ignore sound advice from people who are trying to help you.

 

[fried1765]

Find a zerk (SAE or Metric) that is slightly larger. Use a file or hacksaw blade to cut a longitudinal groove in the threads and you have a self threading zerk!

Now...THAT is a god idea!
Simple fix!

 

[npalen]

If the internal thread is tapered as a lot of pipe threads are, would be a matter of finding the standard tap and just threading a little deeper to renew the threads.
A thread used quite commonly for a grease zerk, here in the U.S. at least, is 1/8"-27NPT. The 1/8" is a pipe size and a bit misleading as the thread diameter is closer to 5/16" give or take.

 

[Sebculb]

Thanks everyone for all the advice. since the taps are hard to come by here think I'm going to try to fix it the way they do most thread problems around here. I'll try to weld a nut on the end of the pin over the stripped hole. That's hardly Mickey mouse and I can do it with what's here. Probably have to go to the capital to find a tap and die set. I'll post up if it works or not

 

[katoomed00]

I would find a nipple with the same thread and bury it as deep as possible with out stripping it, then screw a collar and new zerk.
Maybe JB weld might hold it too. If all else fails and I didnt have a tap set, then do as you said just weld (tack it) and be finish.

 

[Gordon Gould]

I have a stripped out zerk in a thin walled mower wheel hub where I can't get a tap or drill because of the rim curvature. I tryed every size zerk I could find for a tight fit and couldn't get anything that would survive the force of coupling/uncoupling the grease gun. But I did discover that if I stuck the correct zerk into the grease gun hose then jammed the threaded end of the zerk into the stripped hole and pumped I could grease the joint. Leaked a little around the zerk but not much. My only problem now is finding a zerk in my messy box.

gg

 

[EddieWalker]

Zerks come in different thread sizes. Most would simply retap the hole one size up and put a new zerk in.

I've done this, and I've also switched from Metric to Standard thread, or the other way around, and re tapped the threads with good results.