KC_Jones
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- Mar 23, 2018
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1989 Johnson 50HP engine, water pump died (so I thought) so I tore the lower unit off for replacement. What I found wasn't what I was expecting. It appears my water pump wasn't bad (replacing anyway), but the output grommet was pinched on installation causing water to bypass going to the engine and just "squirting" around inside the lower unit mixing with exhaust and making this muck. I drained the lower unit oil and it was clear, no "milk" from water intrusion and it was full, so I see no issues there.
Has anyone ever seen this before? Is it what I think it is, in which case I don't have any worries? Under the water pump was clean as a whistle, this muck was isolated to the exhaust housing area directly above the water pump housing.
Has anyone ever seen this before? Is it what I think it is, in which case I don't have any worries? Under the water pump was clean as a whistle, this muck was isolated to the exhaust housing area directly above the water pump housing.