Build is progressing well but I'd appreciate your comments on these washers and their purpose. They were left over after rebuilding my '39 forks (with auxiliary springs) using a spindle kit from Clay at Acme:
They are unusual in being 1/8" thick. I poured through the Parts Book and found them:
And that part number indicates they're something to do with the top, front auxiliary spindle. Drags doesn't show them on any diagram or anything to do with girder forks although they do know about the part number. Here they are on my old spindle:
The next question was to work out whether they should go under the spindle nut or on the outside of the nut i.e. to keep auxiliary spring away from thread on spindle. Waller to the rescue; this is the only diagram I've found that clearly shows thick washers (34) under the nuts of the top front spindle:
And while I was looking for my Waller book, I looked through photos of the bike before dismantling it and in this photo, you can see a thick 1/8" washer under the nut in the bottom part of the photo:
So it looks like I have the correct original washers for '39 type girder forks with auxiliary springs but I haven't found any other photos on the internet of bikes with these washers. As expected, these 1/8" washers are also listed in the W/NG Parts Book, but can I find a photo of a W/NG with them....no!
I cannot work out what they are for. Are they there just to cover up excess thread on the spindle? In my case, I have (old and new) half depth nuts, and without this thick washer, quite a number of threads are visible on the spindle, which means the auxiliary spring mounting could slide across and damage the threads. But with the washer, the mounting would only rub against the face of the nut. Many W/NG I've looked at have full depth nuts and there would not be room for this 1/8" thick washers.
Over to the experts...please tell me about these washers.