Re: Champion Hydro-drive Lower Unit

[David Stanton]

I redid a lower from a 4LHD (probably the same lower as your 2LHD) back in the early 1980s. From what I remember, other than replacing the seal I already mentioned, all it needed was disassembly and cleaning which was pretty straightforward. You need a spanner wrench to unscrew the bushing around the propshaft. Just keep track of how the rest comes apart. Mine looked like someone had put heavier grease in it and there had been water in there too, but it all cleaned up well. You will see a small screw holding the impeller housing at the rear of the lower unit housing – the impeller runs off the rear of the propshaft. Lyle Swanson told me the #1 problem is people not changing oil to get traces of water out, and using the proper oil in them.
Dave