How often should you change impeller on Mercury outboard?

How often should you change impeller on Mercury outboard?

Mercury recommends changing the impeller every 300 hours…its in the owners manual. It’s an easy enough job to do yourself if you have some mechanical skills.

How often should an impeller be replaced on a boat?

You should check the impeller’s condition during Spring Commissioning and every 200 hours of operation. Correctly installed impellers may last for several years, but you should stick to a schedule of preventative instead of emergency maintenance.

Where is the water pump on a Mercury outboard?

Step 1. Look at the top of the lower unit; you’ll see the water pump surrounding the drive shaft, where it enters the lower unit. Remove the bolts that hold the pump housing in place. Pull the pump housing from the drive shaft to expose the impeller.

What Mercury motor do I have?

Answer: Every Mercury outboard has a serial number label located on the transom bracket area of the engine. The latest serial number labels display a 2-digit number in a box at the lower right portion of the label. These digits coincide with the last two digits of the year in which the outboard was manufactured.

How do I know if I need to replace my impeller?

A boat impeller needs to be replaced if its vanes are slightly melted or have cracks in the roots, or worn off. Yet, many experts suggest yearly replacement as a general rule regardless of its condition, but you can do it whenever you see any visible loss OR do it yearly for peace of mind.

When did Mercury stop making 2 strokes?

2005
Mercury actually quit building all of its traditional two-strokes, from 2.5 hp to 200 hp, following the 2005 model year.

Why is my outboard not pumping water?

Turn the engine off and check for anything, such as weeds or trash, which may be blocking the water intake. If a foreign object is present, remove it and restart the engine after it has returned to normal temperature. In most outboard motors, the water output is a small tube-like structure that can easily get blocked.

How do you test an outboard water pump?

How Do You Test an Outboard Water Pump? On many outboards, you can simply put on the muffs and start the engine. You should see a steady stream of water coming out of the holes on the top of the engine. However, some brands do pump out a stream, but it might not look steady.