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AK 317 Tuning Wheel that holds large oring
10/30/2008 11:16:06 PMBob E.
[URL=http://imageshack.us][IMG]http://img390.imageshack.us/img390/2649/ak317tuningmechlb5.jpg[/IMG][/URL]

TEST ON PICTURE POST Missing Part !!!

I've been working on an AK 317 for quite awhile now and I was pleased to find Adams radio parts had the rubber
parts for the tuning mech. So today I am ready to put them on...only to discover that the "big" wheel that the
large O ring fits around did not come with the radio...
Any help out there?
Got one? I know that's a stretch...
Know where I should look for one on line? I tried PTOP...did not see anything.
I've only got about 50 hours into this set so far so its no big deal if I do not find a replacement part. :O)
Anyone even know what the correct nomenclature for this part is?
Thanks,
Bob

10/30/2008 11:19:32 PMRetry picture post
[IMG]http://img390.imageshack.us/img390/2649/ak317tuningmechlb5.jpg[/IMG]

http://img390.imageshack.us/img390/2649/ak317tuningmechlb5.jpg

10/30/2008 11:25:22 PMTrying one more time
10/31/2008 6:06:04 AMTonyJ
If you knew the diameter, I wonder if you could use an idler wheel from a turntable somehow? That's the impression I got when I saw the part anyways :)

:[URL=http://imageshack.us][IMG]http://img390.imageshack.us/img390/2649/ak317tuningmechlb5.jpg[/IMG][/URL]
:
:TEST ON PICTURE POST Missing Part !!!
:
:I've been working on an AK 317 for quite awhile now and I was pleased to find Adams radio parts had the rubber
:parts for the tuning mech. So today I am ready to put them on...only to discover that the "big" wheel that the
:large O ring fits around did not come with the radio...
:Any help out there?
:Got one? I know that's a stretch...
:Know where I should look for one on line? I tried PTOP...did not see anything.
:I've only got about 50 hours into this set so far so its no big deal if I do not find a replacement part. :O)
:Anyone even know what the correct nomenclature for this part is?
:Thanks,
: Bob

10/31/2008 6:58:57 AMBob E

The oring is 1 7/8 inch inside diameter the shaft hole is 5/32 and the new rubber washer with the arrow pointing to it is 5/8 diameter by 1/4 inch wide. It does look like an idler and the only other suggestion I had suggested the same.

:If you knew the diameter, I wonder if you could use an idler wheel from a turntable somehow? That's the impression I got when I saw the part anyways :)
:
::[URL=http://imageshack.us][IMG]http://img390.imageshack.us/img390/2649/ak317tuningmechlb5.jpg[/IMG][/URL]
::
::TEST ON PICTURE POST Missing Part !!!
::
::I've been working on an AK 317 for quite awhile now and I was pleased to find Adams radio parts had the rubber
::parts for the tuning mech. So today I am ready to put them on...only to discover that the "big" wheel that the
::large O ring fits around did not come with the radio...
::Any help out there?
::Got one? I know that's a stretch...
::Know where I should look for one on line? I tried PTOP...did not see anything.
::I've only got about 50 hours into this set so far so its no big deal if I do not find a replacement part. :O)
::Anyone even know what the correct nomenclature for this part is?
::Thanks,
:: Bob

10/31/2008 3:20:08 PMEdd







Upon seeing your photo, that was the same idea that came to mind, with some of the more likely candidates being the GC-Walsco items
that are shown.


It seems that most of the units shown are two halved, clamshell type of construction, with a little bit of a groove being present, to hold centering, where the two parts then flare out to form the channeling to hold the original rectangular tire.


With that 2 inch overall dimension given, including the idlers tire, seems like that recovered 1 7/8 diameter might be close if the tire was pulled and an “O” ring placed down inside the groove of a unit.


ORRRRRR. . .would the original tire work OK, if being rounded over ?
That can be done by mounting the wheel on a shaft/bolt and chucking into a drill press and then get the wheel spinning and then confirm that the unit is true running and then. . . . and then. . . my real skivvy. . .is to use a cutoff wheel mounted in a Dremel tool , revved up to 25K and locking hands to the unit and your fists edges firmly pressed to a stable rest platform, so that you can then use shifting finger movements to incrementally and slowly bring the cutting wheel edge into contact with the rotating tire. The "psuedo lathe turning" action will slowly reduce and reshape the tire ever so minutely. Instead of skirls of metal or wood shavings, you will only get black rubber dust / powder, and can work to as close of a tolerances as either the works truing or spindle play of your drill press unit.


Illustrations and sourcing:




73's de Edd





10/31/2008 5:05:36 PMBob E.
That seems to be the consensus: using and modifying one of these phono parts... looks cheap too. I have
two other AK consoles I have not looked at yet lurking way back in a dark corner of my garage. I will dig those out first and see if by chance they have a similar set up and maybe do a little "canabalization". ...
Thanks for the homework.
Bob

:
:
:
:
:
:
:
:Upon seeing your photo, that was the same idea that came to mind, with some of the more likely candidates being the GC-Walsco items
:that are shown.
:
:
:It seems that most of the units shown are two halved, clamshell type of construction, with a little bit of a groove being present, to hold centering, where the two parts then flare out to form the channeling to hold the original rectangular tire.
:
:
:With that 2 inch overall dimension given, including the idlers tire, seems like that recovered 1 7/8 diameter might be close if the tire was pulled and an “O” ring placed down inside the groove of a unit.
:
:
:ORRRRRR. . .would the original tire work OK, if being rounded over ?
:That can be done by mounting the wheel on a shaft/bolt and chucking into a drill press and then get the wheel spinning and then confirm that the unit is true running and then. . . . and then. . . my real skivvy. . .is to use a cutoff wheel mounted in a Dremel tool , revved up to 25K and locking hands to the unit and your fists edges firmly pressed to a stable rest platform, so that you can then use shifting finger movements to incrementally and slowly bring the cutting wheel edge into contact with the rotating tire. The "psuedo lathe turning" action will slowly reduce and reshape the tire ever so minutely. Instead of skirls of metal or wood shavings, you will only get black rubber dust / powder, and can work to as close of a tolerances as either the works truing or spindle play of your drill press unit.
:
:
:
:
:Illustrations and sourcing:
:
:
:
:
:
:
:73's de Edd

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:
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10/31/2008 11:21:08 PMBob E.
I dug out my other old AKs....no luck. What I might try first is looking for two big ass washers about the right size and some spacers, bushings and see if I can get something to work that way.
Bob

:
:
:
:
:
:
:Upon seeing your photo, that was the same idea that came to mind, with some of the more likely candidates being the GC-Walsco items
:that are shown.
:
:
:It seems that most of the units shown are two halved, clamshell type of construction, with a little bit of a groove being present, to hold centering, where the two parts then flare out to form the channeling to hold the original rectangular tire.
:
:
:With that 2 inch overall dimension given, including the idlers tire, seems like that recovered 1 7/8 diameter might be close if the tire was pulled and an “O” ring placed down inside the groove of a unit.
:
:
:ORRRRRR. . .would the original tire work OK, if being rounded over ?
:That can be done by mounting the wheel on a shaft/bolt and chucking into a drill press and then get the wheel spinning and then confirm that the unit is true running and then. . . . and then. . . my real skivvy. . .is to use a cutoff wheel mounted in a Dremel tool , revved up to 25K and locking hands to the unit and your fists edges firmly pressed to a stable rest platform, so that you can then use shifting finger movements to incrementally and slowly bring the cutting wheel edge into contact with the rotating tire. The "psuedo lathe turning" action will slowly reduce and reshape the tire ever so minutely. Instead of skirls of metal or wood shavings, you will only get black rubber dust / powder, and can work to as close of a tolerances as either the works truing or spindle play of your drill press unit.
:
:
:
:
:Illustrations and sourcing:
:
:
:
:
:
:
:73's de Edd

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