Get your Mercury 40 2-stroke water pump repair kit here: https://www.boats.net/product/mercury/821354A2?utm_source=youtube&utm_medium=video&utm_campaign=description_atf_BDN
See how to change the water pump on a 2-stroke Mercury 40 HP outboard in this video from Boats.net. We’ve already removed the lower unit from the powerhead, and if you need to see how to do that you can find it here:
Mercury 40 2-Stroke lower unit removal: https://youtu.be/aJx8erA3Evs
John is using a kit here that includes all of the parts you need. We’ll start by removing the four bolts that hold the water pump cover in place, and then we’ll get the old water pump impeller removed. Then we’ll replace the pump. Because the initial start up will be dry, we’ll put a little marie grease on the housing and the wear plate. Get the grease here: https://www.boats.net/product/mercury/802859Q1?utm_source=youtube&utm_medium=video&utm_campaign=description_btf_BDN
See this diagram for a better look at the Mercury 40 2-stroke water pump and how it fits onto the lower unit: https://www.boats.net/catalog/mercury/outboard-by-hp/40hp/0g760300-thru-0t979999-usa-cat-90-803018-2-cyl/gear-housing-driveshaft-2-00-1-gear-ratio?utm_source=youtube&utm_medium=video&utm_campaign=description_btf_BDN
VIDEO HIGHLIGHTS:
Removing the old water pump – 0:50
Installing the new water pump – 1:40
Find Mercury outboard parts here:
https://www.boats.net/catalog/mercury/outboard-by-hp?utm_source=youtube&utm_medium=video&utm_campaign=description_btf_BDN
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In the video we’re working with a 2002 Mercury 40 HP 2-stroke outboard motor, but you may have similar steps for your Mercury outboard. If you’re not sure whether these steps apply to your motor, leave a comment and we’ll get back to you.
RELATED VIDEOS
Mercury 40HP 2-stroke output shaft seals:
https://youtu.be/GQZ1TfnGqio
Mercury 40HP gearcase lube change:
https://youtu.be/jkOoUb6vYPc
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Perfectas imágenes.
Me gustaría ver reparacion kit bomba de gasolina mercury 50cv 2 tiempos año 1999
I have a 2007 df225 Suzuki With water in the engine oil. I flushed it with new oil and filter and still brownish color. I’ve read so far it’s an internal problem. Maybe a head gasket or worse crakes head. One thing I’ve done that was wrong was running the engine while water was on the flush port. Could this have been where I screwed up? Thanks