[R-390] Slug Rack Lube?

[Cecil Acuff]

OH...I was speaking of the metal to metal points on the ends of the slug 
racks...I would never use a lubricant in liquid form on the slugs or 
coils...That would be inviting big time trouble for sure.

I personally haven't used the gun lube on any of my radio's as the Mobil 1 
has worked great!

Cecil....
----- Original Message ----- 
From: "Bob Camp" <ham at cq.nu>
To: "Cecil Acuff" <chacuff at cableone.net>
Cc: "Barry" <N4BUQ at aol.com>; "R-390" <R-390 at mailman.qth.net>
Sent: Sunday, May 15, 2005 4:57 PM
Subject: Re: [R-390] Slug Rack Lube?


> Hi
>
> Be careful with Teflon gun lubes in combination with other odd  lubricants 
> and cleaners. You can wind up with Teflon gumbo in a big  hurry.
>
> Moly powder and talcum powder have both been suggested as core lubes  for 
> the R390 not an A's .
>
>     Enjoy!
>
>             Bob Camp
>             KB8TQ
>
>
> On May 15, 2005, at 4:02 PM, Cecil Acuff wrote:
>
>> Hi Barry and Group,
>>
>>        I have been working on an R-390 recently that is also  exhibiting 
>> the squeaking noise on a couple of the racks. I know  it's not the coming 
>> from the cam/bearing contact points because  they are well lubed and all 
>> rotating. (bearings) The ends of the  slug racks and the RF deck frames 
>> are not touching or loose in my  radio so It's not that...so it only 
>> leaves the cores sliding in the  coils.  The R-390 has no adjustment that 
>> allows tensions to be  removed from the cores due to slight misalignments 
>> as the "A"  does.  I noticed the cores are also coated with some type of 
>> shiny  outer coating as well.  Maybe to aid in friction reduction.
>>
>> I have heard of guys using a ceramic stone and polishing those  contact 
>> points.  I would assume some type of lubrication would also  be in order. 
>> I have used the Mobil 1 synthetic lube at those  points as well with good 
>> luck.
>>
>> A good Teflon gun lube would also be another thought...
>>
>> Cecil...
>>
>>
>> ----- Original Message ----- From: "Barry" <N4BUQ at aol.com>
>> To: "R-390" <R-390 at mailman.qth.net>
>> Sent: Friday, May 13, 2005 10:04 PM
>> Subject: [R-390] Slug Rack Lube?
>>
>>
>>
>>> What are some of you guys using to lubricate the slug racks?  I  have a 
>>> very
>>> squeaky 0.5 - 1.0 rack.  It is not the cam followers, but the rack 
>>> sides
>>> against the frame.  I had thought about some kind of silicone coating
>>> (spray?) but didn't know.  It seems MobilOne is too thin in this  area, 
>>> but
>>> maybe not.
>>>
>>> Thoughts?
>>>
>>> Thanks,
>>>
>>> Barry - N4BUQ
>>>
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>>
>>
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>
>