strong56KH wrote:The part number for the cap locking nut, 62612-52, doesn't appear to show up until the 1956 parts catalog, but it has a -52 ending.
The 1953 and 1954 Spare Parts Catalogs only list the 62610-52 Oil tank cap, chrome, and the 62617-52 Oil tank cap washer. You had to buy the whole cap.
In the 1956 catalog, they list the 62610 cap [complete], but also the constituent parts: 62611-62 Top only, 62612-52 Nut, and 62620-52 Screw, as well as the washer. However, the illustration does not show the "nut".
In the 1959 catalog, the 62612-52 "nut" is finally illustrated.
- 1959 Spare Parts Catalog
- oil-tank-cap-1.jpg (50.56 KiB) Viewed 9730 times
Nothing seems to have changed -part number-wise, for the oil tank cap from 1952 through early 1966. In late 1966 (reported in the 1967 catalog) the 62610-52 Top changed to -52A, and the constituent parts all changed to -66. Also, a 11012 retaining ring and 11105 o-ring were added.
Just a thought: I wonder if the "Screw" with the short arms is the 62620-66 version?
The oil filter changed a bit in Late 1967, but the changes are not listed until the 1969 Supplement.
Yes, Virginia, there was a 62610-53 Oil Tank Cap, not polished, as part of the 1953-only Standard Solo group.