Mercury 4 hp. is it no good now?

[Taylorsville]

I just purchased a boat that came with a 1999 Mercury 4. HP for the kicker motor. As I was looking at the boat the owner started both motors so I could see them run. He ran them for about 10 minutes each putting them in gear and so on. He hooked the Mercury 4 hp up with a hose through the Flushing system I thought nothing of it as water was going to the engine. I got home opened the owners manual and while reading it I came across the page whee it shows how to flush the engine and it has in big letters NOTE: do not run the engine while flushing the cooling system.

Now that I know you are not suppose to run the engine that way and he did for about 10 minutes am I going to have problems?

I have a picture of the page from the owners manual to give you an idea of what I am talking about. Any advice would be great.

 

[JB]

Re: Mercury 4 hp. is it no good now?

There is a good chance that your impeller is burned up. Other than a new impeller I doubt that you have a problem.

 

[jerryjerry05]

Re: Mercury 4 hp. is it no good now?

Thats just flushing the cooling system.
You have to have water when your running it on land.The flush system should push water back through the water pump.
When ever U buy a used motor the first thing U do is change the impeller and gear oil no mater how well it runs.That way U know for sure that it's OK. J

 

[Taylorsville]

Re: Mercury 4 hp. is it no good now?

Okay i will chang that impeller I already changed the oil. Thanks for the help.