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I can’t seem to find a clear direction to remove the lower unit on my 1949 Johnson 10hp so I can replace the water pump impeller. Where’s the place you disconnect the shift rod? Do you need to remove the powerhead to get to everything? I see where the shift linkage can be disconnected right under the powerhead but it looks like it would be next to impossible to get the cotter pin back in when you’re done. See attached picture.
Is it necessary to remove the silver exhaust section?
Here’s what the lower unit mount looks like.
Any insight is more than appreciated.
Take the exhaust cover off and you have easy access to undo
the shift rod, unhook the water line, etc.
This is a Gale 12 hp, but same setup.
Attachments:
Prepare to be boarded!
I seem to recall you have to unscrew the coupling that opens the shutter on the exhaust relief – above the pump housing, that same PIA lower unit was used on the Evinrude Fastwin , , , 🙄
If the set up is the same as my QD-12 you take the back half of the lower unit to gain access. Once it is unscrewed, the driveshaft comes out of the power head and everything drops down.
That worked! Thank you everyone. This is what I found. Guessing it’s lower unit seal time? Or would a blown head gasket cause the milkshake?
And this is the impeller that came out. I think I found most of the tiny bits. The passage through the engine seems clear enough. It was still pumping water when last ran.
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