Before assembling everything it dawned on me that the tub support needed cleaning as well. The remains of water mixed oil was on both surfaces, and the flange for the water bellows was rusty and needed some TLC.
The screws for the tub supports do not appear to be a common size/thread pitch that you can get at a hardware store, so take caution when removing these. Also, don't make the mistake I did and allow POR-15 to flow into the tapped holes. That made for a nightmare getting several of the screws installed.
The tub bottom of the mechanism seal is shown in the last photo, with an NOS bronze washer and gasket installed, along with the original snap ring.
Another oddity was the part number casted into the support - 5434039. That PN is for the 55/56 Unimatic tub support, but this particular support has the provisions for the 57/58 bronze seal assembly that cannot be used on a 55/56 mechanism and should have carried the 5436235 PN. [this post was last edited: 12/29/2019-16:33]




The screws for the tub supports do not appear to be a common size/thread pitch that you can get at a hardware store, so take caution when removing these. Also, don't make the mistake I did and allow POR-15 to flow into the tapped holes. That made for a nightmare getting several of the screws installed.
The tub bottom of the mechanism seal is shown in the last photo, with an NOS bronze washer and gasket installed, along with the original snap ring.
Another oddity was the part number casted into the support - 5434039. That PN is for the 55/56 Unimatic tub support, but this particular support has the provisions for the 57/58 bronze seal assembly that cannot be used on a 55/56 mechanism and should have carried the 5436235 PN. [this post was last edited: 12/29/2019-16:33]



