bruce79 Posted December 12, 2006 Report Share Posted December 12, 2006 might you answer for me this quick question, I just received my new thicker crown from palp and am having trouble fitting the stem from my joshua 112h to it. Is there a trick to this or could it be that the threadings may not be lining up. The stem won't screw into the new crown and I don't want to force it and cross the threads. Thanks Quote Link to comment Share on other sites More sharing options...
RWG Technical Posted December 12, 2006 Report Share Posted December 12, 2006 might you answer for me this quick question, I just received my new thicker crown from palp and am having trouble fitting the stem from my joshua 112h to it. Is there a trick to this or could it be that the threadings may not be lining up. The stem won't screw into the new crown and I don't want to force it and cross the threads. Thanks You could have one of two problems... 1. Crowns come in two sizes, 0.90 and 1.20mm, confirm that the crown you have is a 1.20mm hole. 2. If you cut the stem of the new watch you have to make sure that the threads are filled down and there is no burr on the threaded portion. If you simply removed the old stem from the old crown, this should not be an issue... I have noted some problems with the thread cutting on these ones, if after checking the above, you still can't get it to work, have a look at the hole under a good light and a loupe...you should be able to see the threads clearly, could be it was not tapped following drilling... RG Quote Link to comment Share on other sites More sharing options...
ubiquitous Posted December 12, 2006 Report Share Posted December 12, 2006 Just as a thought... One way you can confirm the size of the crown is to see if a stem from an ETA 2836/24/92 threads in. If it does... Then you have a Tap 10 crown... Quote Link to comment Share on other sites More sharing options...
bruce79 Posted December 12, 2006 Author Report Share Posted December 12, 2006 After removing the stem from the old crown, there was tons of glue all crusted in the threadings. I soaked it in hot soapy water and brushed it clean. Then I used my dremel and cutting wheel to sand it down a bit and clean up the sides of the tip. I went a little overboard though, if I'd sanded it any more it would be too short. I sprayed a little WD40 on the threading and it went in I forgot to glue it though and I could only set the time going forward I need to glue it when I get home from work. I wiped the WD40 off the stem really well but do you recommend soaking it in soapy water again and drying it really well before installing it for good? Thanks Quote Link to comment Share on other sites More sharing options...
RWG Technical Posted December 13, 2006 Report Share Posted December 13, 2006 I wiped the WD40 off the stem really well but do you recommend soaking it in soapy water again and drying it really well before installing it for good? Thanks I would scrub it well with soad and water to remove any trace of WD40. If you put a bit of 3 in one oil on the crown where it seats into the case it will be fine...a dab of instant glue and it will secure it in place. RG Quote Link to comment Share on other sites More sharing options...
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