Put engine in fwd gear. Then disconnect the shift linkage. Remove the bolts that hold the gearcase on and slide gearcase off of the tower. Remove the 4 bolts or screws in the waterpump housing and lift the housong off. Replace the impeller and reassemble in reverse order. Make sure that you get the water tube lined back up and you can twist the prop to line the splines back up in the powerhead.
have you changed the impeller inside the lower unit.
There is copper pipe to redirect water up into the engine.
When you replaced the impeller make the copper pipe is insert onto the engine.
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35hp Johnson motor 1958. Put a new impeller in it and it still does not pump out water.
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