Tractor Top Link Threading

SB10L · Jun 20, 2010

What are my best alternatives or possibilities for chasing the threads in this top link? Maybe a tap with a 6 inch shank but not sure I have ever seen such as that. The threads are 1 1/16" UNF and are the same dimensions on both ends of the body except one end is right hand thread and the other end is left hand thread.

I have a picture that I will try and post in a reply as it will not let me do it when creating a new thread

Thanks,
Eddie

SB10L · Jun 20, 2010

Here is the picture with the dimensions and showing the threads on both ends.

Limy Sami · Jun 20, 2010

We relly need more info.

There are a good few possible methods,......... why do they need chasing?........ corrosion?.... damage? ...... something else?

adama · Jun 20, 2010

Normaly if there just rusty a realy stiff wire bottle brush and some heat will soon clean them up. Failing that - instead of have a look at electrolitic rust removal. With some cretive electrods you can do realy realy deep holes!

SB10L · Jun 20, 2010

There just seems to be a lot of build up old dried grease scale maybe some light rust and such as that not any damage to the threads that I am aware of. I can't really see that well to know exactly. I have an old link end that the threads are very worn down on and it goes in very easily. I have a new link end with nice threads and it starts but is much tighter and when backed out the threads have all the black scale on them. I could probably go on in with it but just thought it would be better if I could just run something like a tap through them to clean them first.

RC99 · Jun 20, 2010

wire brush on an angle grinder...

awake · Jun 20, 2010

Do you have the necessary LH and RH taps? Have you priced them? I don't have any idea what they might cost, but being a cheapskate, unless they were giving them away, I'd probably just grab some suitable scrap and make a quickie thread chaser -- if all you are needing to do is scrape out the rust and gunk, and for a one-time use, I would think you could get away without hardening it.

SB10L · Jun 20, 2010

No I do not have them and looking at some of the prices they may be around 130-150 for a 6" shank. I guess I will just have to try a 1 1/4" diameter 1/4" shank wire brush on a 12" extension and hope for the best.

PDW · Jun 20, 2010

SB10L said:
No I do not have them and looking at some of the prices they may be around 130-150 for a 6" shank. I guess I will just have to try a 1 1/4" diameter 1/4" shank wire brush on a 12" extension and hope for the best.

You could just buy an entire new top link. Not like they're rare or expensive.

PDW

Limy Sami · Jun 21, 2010

awake said:
I'd probably just grab some suitable scrap and make a quickie thread chaser -- if all you are needing to do is scrape out the rust and gunk, and for a one-time use, I would think you could get away without hardening it.

That's what I would do,............ have done it many times on exctly the same job,....... failing facilities for making a chaser, get a long bolt (old rod end??

) grind / file some flutes in the end and work it to and fro in the thread withdrawing it to clean out the flutes etc etc....... fwiw WD40 helps a lot to soften the old muck.

This job realy isn't rocket science

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