Rear Trunnion Spring Seat Seal Question
Posted: Wed Oct 04, 2017 10:51 pm
I am in the process of removing the rear spring seats, and servicing the trunnion bearings. I will be replacing all four u-bolts, as they have started to neck down in the area where they enter the spring seat. Looks like the design of the spring seat is optimized to collect dirt and water, which apparently has accumulated over the years, leading to corrosion of the u-bolts. Will dissemble and inspect springs as well, to see what they look like.
I have a question concerning the seal that goes between the spring seat and the trunnion shaft. The diagram in my ORD 9-G508 (Apr '45) shows the seal that is currently on my truck - a large felt washer sandwiched between two steel washers.
However, Group 1601 lists an "Oil Seal, Rear Spring Seat Bearing", PN 2199398 (which is also part of a set, PN 2200650). I am picturing this as perhaps a replacement seal, that seats on the trunnion shaft and has a rubber sealing service on the OD of the seal, contacting the ID of the spring seat? Since the seal has to go on before the bearing, that's the only configuration that I could see work, right?
If so, does anyone know of a current source for that seal? Have not had much luck locating it, or its cross referenced counterparts (CR, Timken, National, etc.)
In lieu of that seal, can I just replace the felt one that is in there? Thinking about maybe getting some equivalent felt from McMaster Carr, and cutting out my own seal. It just has the keep dirt and an occasional splash of water out. I don't plan on running it submerged.
Any thoughts?
Best Regards...
I have a question concerning the seal that goes between the spring seat and the trunnion shaft. The diagram in my ORD 9-G508 (Apr '45) shows the seal that is currently on my truck - a large felt washer sandwiched between two steel washers.
However, Group 1601 lists an "Oil Seal, Rear Spring Seat Bearing", PN 2199398 (which is also part of a set, PN 2200650). I am picturing this as perhaps a replacement seal, that seats on the trunnion shaft and has a rubber sealing service on the OD of the seal, contacting the ID of the spring seat? Since the seal has to go on before the bearing, that's the only configuration that I could see work, right?
If so, does anyone know of a current source for that seal? Have not had much luck locating it, or its cross referenced counterparts (CR, Timken, National, etc.)
In lieu of that seal, can I just replace the felt one that is in there? Thinking about maybe getting some equivalent felt from McMaster Carr, and cutting out my own seal. It just has the keep dirt and an occasional splash of water out. I don't plan on running it submerged.
Any thoughts?
Best Regards...