MOK 8F 8425 – 2 Port Oil Boxes

The last few days have been all about oil boxes.

Studying photos shows that there are quite a number of 2 port oil boxes dotted about the footplate and visible inside the upper frames. There were some castings provided but there were only four of them and they lack mounting plates. While I could and did make mounting plates I also elected to remake the oil boxes with a bit more detail.

Besides to large 6/8 port lubricators mounton the the right hand side there seem to be three different types of 2 port lubricators so i have replicated each type as best I can.

The types that I have identified (so far) are:

Rear mounted with pipes coming out of the bottom.

2 Port Lubricator Boxes

Bottom Mounted presumably with the pipes also coming out of the bottom, but I haven’t modelled them.

The last type are those mounted at the front of the frames just under the end of the smokebox. These are very shallow and have a couple of prominent mounting nuts on top of the angle iron mounting plate.

What can’t really be seen in the photos is that back edge of the angle plate also has two holes and after struggling to workout how I might hold all the other parts together while I added the last two mounting bolts (the brass angle doesn’t take pressed rivets very well due to the proximity of the other leg) I elected to use the holes to drill the frames and then pass brass pins through to mount them.

After doing the initial rear mounted boxes with 180 degree solder it occurred to me, that I would make life much easier, if I soldered the others together using 296 degree solder. Thus making it less likely that they would fall apart if soldered to the frames with 145 degree solder. time will tell.