So. I got out the famous Ray White timing tool. Installed a brand new #90 needle in the 319W and set about timing the hook and the needle. It would not work. I fiddled around some before I finally decided to just come in the house (it was warmer in here) so that I could have the working 319 near by for comparison. That was when I discovered (moron that I am) that I was using a 130/705H system needle. The 319 takes a 206X13 needle. Oh good. Something simple. Well, even with the CORRECT needle I couldn't get the thing to NOT catch on the hook as the thread went around. So then I put in the bobbin case (more brilliance, I just astound myself) but it STILL would catch. I was STYMIED. STUMPED. FRUSTRATED. BAFFLED. CLUELESS. AND BUMMED TOTALLY. TOTALLY BUMMED. ABSOLUTELY.
Then the kids came. Saved from myself.
This morning I went back out to the shop. Last night I studied the 306 service manual, re-read Bill Holman's advice about how to fix these machines if they have been re-timed for a 130/705H needle system. I checked the feed timing, I re-timed the hook, I checked the needle bar height. I did it all. STILL, it would catch as the thread went around the bobbin case.
THEN I wondered if perhaps the problem was that the tension assembly was dirty. I took that sucker apart and cleaned it. I couldn't get the stud out of the machine because the set screw was glued in there with old dirt and oil. Heat and Tri-Flow. Heat and Tri-Flow. Heat and Tri-Flow. Admittedly the tension assembly was dirty. But that was NOT the problem. Well, ok I was not yet at the "I CAN'T TAKE THIS ANY MORE AND I WANT TO THROW THIS MACHINE OUT THE WINDOW AND NEVER LOOK AT IT AGAIN." but I was dang close. Tears were trying to well up in my eyes and I was shaking, only a little bit. So I walked the dogs.
I decided that my original plan, to have the working 319 near by, was a good one. I came back in the house (the kids had left by then, quick trip to fetch a car) with the famous timing tool, screw driver, LIGHTED MAGNIFYING GLASS (did I mention that I am in my seventh decade?) and requisite needle and bobbin case. Oh how I did not want to get that 319W out of its base. I did that the other day and it was a bear to get back together.
Then I remembered... I have a 306!!!!
THEN I tried it. The thread still got stuck. OK tears are starting to flow...... WTF (and bad language too).
I turned to the 306 and threaded it up, and watched as the thread went around the bobbin case. IT GOT STUCK TOO. WTF WTF WTF. Could it be that simple?
I put the needle plate back on the 306...Perfect stitches. WTF WTF WTF.
I put the needle plate back on the 319. Perfect (ok not perfect but pretty f...... close (bad language persists)) I managed to GET perfect straight stitch stitches by adjusting the tension.
CAN YOU BELIEVE IT? I was holding the thread up as I was testing the timing, but I guess I wasn't holding it up loosely enough or something.
Some famous inventor of a timing tool always said, over and over again. "Nine times out of ten it is something simple."