The impeller on this 1998 Mercury outboard engine is due for replacement. Watch the video to see how we did it.
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hey guys thanks for the info- what was the year of this 150 merc??? and what about disconnecting the shifter rod?
LMFAO silicone.
https://www.youtube.com/watch?v=5O4TLmTd7wA
This video should be removed. This guy does several things incorrectly and makes the process more difficult than necessary. Use of tools and reassembly is incorrect. Never silicone the lower unit. Install impellers on drive shaft then the housing is much easier and less margin of error and on and on……….. he obviously has no marine engine repair training.
Thanks for good tips.It is possible to have a bad impeller that will pump water with the hose pressure adapter but not pump with boat in water or motor leg in barrel.
This video is missing a lot of steps
how long should a cold engine take to start pumping water through the telltale hole?
there is no need for using silicone sealant along the split line of the housing.the only spot you use sealant is on the edge of the lower unit,right behind the water pump,on the exhaust side of the pump.thsis prevents exhaust gases from going into the pump area..
Always leave lower unit in gear so you can turn prop to align splines
sorry but…NEVER use an impact on a prop nut. And remove drain plug before vent. Less messy