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Regulator boot fouling balance wheel


AshF

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Hey all,

I have an EB 1199 where the regulator boot is fouling the balance wheel in dial up position.  The balance pivots look good, certainly the end shake isn't excessive.

Note, this picture is in dial down position but circled in red is where it fouls.

IMG_20200811_232827.thumb.jpg.cc5f68b63f4f53b33ee80a1894a957da.jpg

I noticed during disassembly (how could you miss) that a previous watchmaker had shimmed the cock at some point.  I don't see how this would help?

IMG_20200723_225147.thumb.jpg.c2ab396108d2483c0699ece6655f760f.jpg

 

Any ideas?  Was the shim there to tilt the cock so that the regulator boot would be further away?  That sounds nasty.  This was a total non runner when I started.

 

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Hi all the previous advice is sound, either the balance complete was changed of it had been re staffed at some point, Usually the balance cock is shimmed to increase the endshake. As old Hippy remarked check the balance cock is seated and parallel to the plate and the balance wheel rim is running flat.      

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