Zawlard Report post Posted March 14 Trying to dial in my Seiko CW-8B-2 for some lighter veg tan work and running into issues with my bobbin tension. Any advice for loosening bobbin tension adjustment screw? Can’t seem to be able to back it off at all, wondering if I should look at getting a new bobbin case and spring? Quote Share this post Link to post Share on other sites
suzelle Report post Posted March 14 Sometimes you can take it out and bend it until it works, but takes removing and installing it a few times to get it just right. Not a bad idea to just order another one though, so you have one either way. Quote Share this post Link to post Share on other sites
Constabulary Report post Posted March 14 (edited) Make sure your screw driver really fits the tiny screw slot. If the screw is seized / gummed with old oil apply heat with a heat gun and try again. Or try a micro gas blow torch or a blow torch pen. https://www.ebay.com/itm/176252788614 or similar Edited March 14 by Constabulary Quote Share this post Link to post Share on other sites
Zawlard Report post Posted March 14 Thanks for the suggestions, I’ll give it a whirl and order a case and spring ‘just in case’ . Quote Share this post Link to post Share on other sites
DieselTech Report post Posted March 14 I've read gunk & grime can build up behind the spring & limit the spring tension on the bobbin. Quote Share this post Link to post Share on other sites
