Not sure if it is Capco but very similar. Donated to me by a group member. The parallel spindle runs in two "bronze" Plain taper bearings, each has a nut at the "small" end to pull the bearing through the tapered bore to shrink down on the shaft. Nut at the big end to lock the adjustment. I adjust the small end nut until the spindle feels "right" in the bush then lock in postion with the big end nut. However as soon as I do the spindle locks! All this relates to the bearing adjacent to the wheel. The other bearing does not have the same problem. Checked the bush taper (0.648"/Foot) and it does NOT match the bore taper (0.586"/foot) yet both the bush OD and the bore ID "look" original. The bush is tight in the large end of the bore but loose in the small end. Does not seem correct to me!
Rather than turn the bush OD to match the bore I wonder about building up the bush taper with solder, then turning to match the bore.
1 If I take meat off the bush it will sit further down the bore
2 Taking original metal off is the last resort.
Having got the bearing correct in the bore, I then consider lapping it with a wood lap to ensure that it is true with the rear bearing.
Any comments on the above?
Richard