1987 DT8 lower unit water/oil tightness

[waterMatt]

I'm new here so hello to all outboard enthusiasts!!
I disassembled DT8 1987 and I see issue with oil seals (some oil and some water in gear case). Part no: 11
1987 DT6 Suzuki Marine Outboard GEAR CASE Diagram and Parts
The bearing carrier has two of oil seals. What is the best way to change them if the external diameter of seal is bigger then the hole in bearing carrien from propeller site or bearing site.
Other thing is about how to remove part no: 18
1987 DT6 Suzuki Marine Outboard WATER PUMP Diagram and Parts
to get to oil seals? It's very stubborn and looks like 20 years of use in salt water, saying in one world is welded. Would submgeing in breake fluid or parrafin oil for week help??
Thanks in advance for any help or direction!!

[boats.net]

If seals are too large to fit into housing then need to recheck model and serial number to make sure have correct parts for your engine.
Probably will have to use heat to remove lower water pump base.

[waterMatt]

Thanks for your reply! I'll try with gas torch.