oldtimer Report post Posted April 23, 2017 @ Raven Yes - thats the one! I just compared the parts and they are quite identical as far as I can tell. The only significant difference is that the feeding motion ring "thing" oft he 29K1 has curved angles where the bar meets the ring and the 29K71 is perfect 90° angled. Till try to install the two 29K1 parts in my 29K71 ans will see what is happening. Is it the part in the pic at far right that is worn and makes stitches shorten by wear? Quote Share this post Link to post Share on other sites
Constabulary Report post Posted April 24, 2017 yes, the bell crank lever has a huge influence on the stitch length but the feed motion ring as well when it is worn (thats the other part you see in 1st and 2nd picture) Quote Share this post Link to post Share on other sites
Wizcrafts Report post Posted April 25, 2017 I bought a Singer 29k71 that only had short stitches. After pulling the head apart I found that the feed motion crank had a worn down puck. Back in the 1980s I would have just brazed on some bronze rod and reshaped that puck. This time I went on eBay and bought a new aftermarket replacement part. After installing it and using Emory cloth to get the best fit without binding in 360 degrees, I instantly got 5 stitches per inch. Quote Share this post Link to post Share on other sites
Constabulary Report post Posted April 25, 2017 (edited) With my 29K71 I´m very very close to 5SPI but when I make 20 stitches (21 holes) and measure I´m a bit below 5SPI. I´m very very please with this result! Investing in a new feed motion BCL is worth every cent. @ Oldtimer - when you buy a new BCL you nowadays find them for "more modern" 29K71 /29K73 and the like and they will fit your earlier 29K (29K1, 29K3, 29K4, 29K33 and so forth) model too when you modify them a little bit. I had to grind down some spots but that was no big deal. Do not buy used BCL only because some one sells it for exactly your machine model since they are (most likely) a bit worn already. When the BCL is new the round tip has approx 5mm in diameter Edited April 25, 2017 by Constabulary Quote Share this post Link to post Share on other sites
Constabulary Report post Posted April 25, 2017 BTW - since you are in Sweden I´d check with College Sewing in the UK, thats where I bought my 29K parts: https://www.college-sewing.co.uk/store/82167-FEED-MOTION-BELL-CRANK-LEVER-SINGER-29K And this is their 29K parts list - but not all of them fit for any 29K model... https://www.college-sewing.co.uk/store/Singer29K,29USewingMachineParts Quote Share this post Link to post Share on other sites
shoepatcher Report post Posted October 16, 2022 The newer bellcranks will have to be ground down a lot for them to fit the 29-4. I think it is less work to get someone weld a very small bead on each of the 29-4 bellcranks lobes and re-shape it with a Dremel. To my knowledge, NO ONE is making new 29-4 bellcranks. I believe it was the same one used on the early 29K machines and the 2K51-56 series. Beginning with the 29K58, that part was changed and enlarged. glenn Quote Share this post Link to post Share on other sites
