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Two R2Rs with play in capstan - how to fix?

CPQ5360

New Member
Hi all. I recently acquired two reel-to-reel tape recorders - a Craig 2107 and a Voice of Music Tape-O-Matic 760. Both are small, low-end, but capstan-driven units. Both work, but are suffering from the same issue - they have longitudinal play in the capstan.

The Craig's play is massive - on the order of a 1/4 inch. I have to lay the machine on its back to play; otherwise the capstan walks forward, and the flywheel scrapes against the chassis.

The VM's play is about 1/8 inch. It causes the flywheel to sit low, so the FF idler doesn't engage with it properly.

Anyone know what might the issue be on these machines? Is there a felt washer in the capstan that has gone flat? I thought since I have two machines with the same issue that it would be a common issue, but I have found absolutely nothing through Google.

Thanks!
 
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You'll probably have to take them apart, and see if there is a way to adjust them mechanically. I doubt you'll find service manuals for free for these.
 
You'll probably have to take them apart, and see if there is a way to adjust them mechanically. I doubt you'll find service manuals for free for these.
Agreed here. I would imagine that a fiber or plastic washer or series of them have worn apart due to age and they'll need to be replaced. A little (1/16") bit of endplay is necessary as you don't want the flywheel to bind and become difficult to rotate.

Steve
 
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