What is a impeller and how do I change it?

[pensacola]

I need to know what a impeller is and how to change it. I have looked through the manual and can't find nothing about it.


Reference this thread http://forums.iboats.com/showthread.php?t=248749

 

[JustJason]

Re: What is a impeller and how do I change it?

oh boy...............

Well... i'd start by hitchin up the trailer and driving it down to the shop.....

 

[pensacola]

Re: What is a impeller and how do I change it?

aww c'mon now. I got water in the cylinders and Don S. mentioned the impeller.

 

[Don S]

Re: What is a impeller and how do I change it?

Read this thread Jason, I had him post the question.
http://forums.iboats.com/showthread.php?t=248749

 

[Don S]

Re: What is a impeller and how do I change it?

Don't panic, not everyone read that thread

The impeller is the raw water pump inside the outdrive. It has an impeller in it that pumps the cooling water into the engine. The engine circulating pump (aka water pump by the automotive types) does nothing more than circulate the water in the engine when the thermostat opens. It can not PUMP water from outside the boat into the engine. That is the job of the raw water pump.
Now, if it runs without water, it will be damaged and will need to be replaced.
More coming. Have to talk to the phone right now.

 

[pensacola]

Re: What is a impeller and how do I change it?

Well see there. I knew there was a water pump in the drive. I just didn't know that it went by the name of impeller. So by running the boat without water to dry the cylinders and plugs I ruined the impeller. That blows. But I saved the engine.

 

[Don S]

Re: What is a impeller and how do I change it?

The impeller is only 1 part of the raw water pump in the outdrive. Do you have the OEM service manual (Clymers and Seloc don't count).

 

[pensacola]

Re: What is a impeller and how do I change it?

No its a clymer manual. Might need to look into that.

 

[Don S]

Re: What is a impeller and how do I change it?

Clymer
No wonder you are having so many problems.
You need OEM manuals ONLY.
I can help you with the drive manual, It's online and free. Here is the link. Just go to outline and click on the section you want to look at. Trust me, section 3B will tell you about the impeller, there is also a section on removal and installation of the drive.
http://www.boatfix.com/merc/Servmanl/14/14cover.pdf

For your engine, you need book 24 (not online).

 

[pensacola]

Re: What is a impeller and how do I change it?

WOW. There is a whole lot to the drive unit. Something I know nothing about. Think I might leave that to the mechanic.

 

[Don S]

Re: What is a impeller and how do I change it?

Yea, there are more to boats than a lot of people think there is. Look at it this way. Impeller changes are easy and cheap and should be done about every 3 or 4 years on a Gen II for no other reason that peace of mind when you go out. You know you won't be overheating because of an old impeller.

 

[boatradioman]

Re: What is a impeller and how do I change it?

just asking, if you don't know what it is, how do you know it needs to be changed?

 

[Don S]

Re: What is a impeller and how do I change it?

if you don't know what it is, how do you know it needs to be changed?

Read the reference thread in the original post, then you will understand why.

 

[JustJason]

Re: What is a impeller and how do I change it?

My bad Don and my apologies Pensacola... i was not aware of the other thread.