ndnchf

Nice job on the refurb. Thanks for documenting it so well on your blog too. I'd like to find one like that to go with my 29-4 patcher. They would make a nice pair.

Did the original poster's problem get resolved? This is an interesting thread, but it left us hanging!

I know this is an old thread, but I just wanted to say what a great job Constabulary did, and how helpful this thread is for me as I work on my 29-4.

Well, I'll just have to see how many stitches per inch I get with the parts I have. Not sure what that .020" movement at the tip will equate to in stitch length loss. But if it is excessive, I'll try to weld up the BCL nub and fit it closer.

Thanks guys. I decided to assemble the BCL and motion ring parts I bought to the head assembly to see how much wear I have. I set it up with a dial indicator at the very tip of the BCL so I could measure total movement (slop) of the fit between the ring and BCL nub that fits in the ring. With my finger I moved it back and forth. Total movement was .020". There had to be some manufacturing tolerance when new, maybe .010"? If that is the case, wear to the tip of the BCL is about .010". So is .020" total movement at the tip considered excessive? That doesn't seem bad to me. It would be nice to know what the slop is with new parts as a reference point. Thanks!

Thank you Constabulary - that thread is very, very helpful. I've been wondering about parts interchangeability between the different 29 models, your photos helped. Could you explain how you modified the new bell crank lever? Was it grinding down some of the added webbing at the 90 degree corner? I looked at College Sewing's web site - wow they have just about everything, I wish they were on my side of the pond. Thanks Steve

I have not looked at the bottom end beside removing the bobbin and case, then watching the hook revolve back and forth. There does not seem to be much side to side movement of the hook. Can you tell me specifically what to look for? Photos would be helpful. Thanks.

This is all very helpful. I appreciate everyone sharing their experiences.

Thanks sovran81. So far the parts known to wear that I've examined don't look too bad, but I've not yet got into the bottom end and bobbin gears. The parts that were broken are rusty in the broken area, leading me to speculate that the damage occured a long time me ago. That may account for the amount of wear I've seen so far. But more investigation is required. Thanks Steve

New guy here, but I just went through this a few days ago with my 29-4. Beating on that pin risks damaging the casting and the pin. I used a trick I learned many years ago. Get a strong C-clamp and a 7/16" nut. Position the nut over the pin on the front, then put the clamp in place. Tightening the clamp will press the pin into the hole in the nut. It will be tight, when it breaks free there will be a bang! If it is still stubborn, let the clamp sit on it overnight tight. The constant steady pressure will work on it. Heat it a little if necessary. Here's a pic I took when working on mine. Hope this helps.

I suppose you are right, I have nothing to lose by trying to weld them. I have a MIG and a buddy who is a better welder than I'll have him look at it and see what he thinks. Thanks.

I thought about welding the parts, but correct alignment is critical. Welding often causes warping. If these are even .020" out of alignment, they may not work. But as a last resort I could try it. I'm in Virginia. Parts and part number I need so far are: Feed motion ring slide bar 8562 Feed motion bell crank lever 8559 Needle plate 8591 (mines rusted) Stitch regulator thumb screw 288 Needle bar 8655 (8693 with springs) Needle clamp 8687 Needle clamp screw 237f Tension spring 8619 Tension cup 8617 Tension nut 1560 Small bobbins Thanks, Steve Here is my project machine.

Hello, new guy here with 29-4 that has had a hard life. It appears that it was dropped at one point which broke some parts in the head. I have the head apart and found the feed motion ring slide bar and feed motion bell crank lever broken. Also the bottom of the needle bar was bent. But I've straightened it, probably within .010". The broken parts will need to be replaced. I was wondering if anyone has a "parts" machine that I could source these parts from? I see that these two parts are available new for various 29K machines, but am unclear if they will fit a 29-4. Or can they be made to fit with minor modification? I also need a number of smaller bits and pieces. Thanks, Steve