In article , Airy R. Bean
writes
I assumed that the lower part of the SO239's screw thread was dirty and
so drove the nut home with a pair of pliers, assuming that this would
clear the screw thread - we live and learn!

I warning to those who need it; if an RF connector is "dirty", clean it,
do not leave the dirt to cause trouble.
--
Ian G8ILZ

So you agree with me, but you needed a channel
to vent your emotion? Not really what Ham Radio is
all about OM, more to be expected from a radio hobby
on 11m.

"mexico_zero" wrote in message
...
"Airy R. Bean" wrote in message
...
Do you wish to contribute to the discussion as a mature
Radio Ham and outline your procedure for the same
problem, or do you wish to be condemned forever
as a childish CBer sneering 'n' jeering from the sidelines?
Ok, as a straight answer, it was unwise to force the thread, but you knew
that already. If there was any foreign body to restrict the threads,
excessive force would only serve to damage the components. Such tactics
are
truly 'last resort' to get you home in an emergency. If you're sure the
threads are clean and compatable then the application of a lubricant may
help. I often find this with dissimilar metals, titanium being a major
culprit for 'grabbing' dry inserts.

What I do is half a turn, back a quarter, and then repeat,
rather in the style of tapping a screw thread, using Rocol
also in the same style.

In this case, after 3 1/2 turns I reached the obstruction,
and retracted to examine. There didn't appear to be any obstruction
in the thread, although it was difficult to see because it was down
an aluminium tunnel, and so I applied greater force for the next
half turn, at which point it jammed up, and so reference to
this NG!

Odd that even a direct practical and technical question such
as this matter brought so many of the resident CB types out
of the wood work to sneer 'n' jeer on the sidelines. Their
behaviour in this public forum perhaps does more to create
a bad press for HamRadio and to lower the standards
than they perhaps realise?

"KW" wrote in message
...
"Airy R. Bean" wrote in message
...
It is standard practice when you have a tight/rusty
screw but neither the tap nor the die for the thread
to drive a nut against the corrosion.
You can tighten slightly the nut on the screw then tap the around sides of
the nut freeing off the thread. next tighten down again and repeat until
sufficiant thread is compatible with the nut.
BTW... don't change the nut for another.

In article , Airy R. Bean
writes
It is standard practice when you have a tight/rusty screw but neither
the tap nor the die for the thread to drive a nut against the
corrosion.

It is stupid practice with any RF co-axial connector, you do NOT want
corrosion in the signal path.
--
Ian G8ILZ

Children,

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Take this into the bathroom, and don't come back out to the
group until you've settled things.

"Joe Bramblett, KD5NRH" wrote in message
.. .
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Take this into the bathroom, and don't come back out to the
group until you've settled things.


Well said Joe, same applies to the "Windows 98 CD" thread. How come
technical threads are never so long?

--
Brian Reay
www.g8osn.org.uk
www.amateurradiotraining.org.uk
FP#898

And more recently have obtained some offcuts
of 40mm nylon round rod from a local engineering
works.

"Airy R. Bean" wrote in message
...
I'm now well on the way to repairing the 5/8ths where I had to
engage in destructive test - I've been given a large sheet of
Paxolin/Tufnol which is 7/8ths of an inch thick, so 3 thicknesses
of that araldited together and turned down should do the
trick.