Impeller

[Flipside]

Pardon my ignorance gents, but I just bought my boat last year (first one). Where is the impeller? I assume it is under the boat on Port side, right? Or is this for the ballast? When checking the impeller, do you just make sure the fins are not broken and that it spins freely when you spin it by hand? Is that all that you do? I don't see any reference to it in my Owners Manual.

PS I have a 2002 SAN.

Thanks!

[Familyman]

Download the manual for your engine here

http://www.planetnautique.com/index....load&sid=4

And do a search for "impeller" within the document...It should have all the info you need

[DanielC]

Flipside, what engine is in your boat? 2002 was the last year the Ford Gt040 engine was available.

[Flipside]

Daniel, I had the GT40, but replaced it with a new PCM EX343 this year.

[DanielC]

You need to figure out what model year your engine was used. Then you can down load the manual for your engine.

[AirTool]

Daniel, I had the GT40, but replaced it with a new PCM EX343 this year.

The raw water pump is on the front of the engine and is driven by the serp belt.

I'm working on a photo "how to" but missing a few photos to finish. See attached for now.

[DanielC]

With Airtool's picture you should now know where the raw water pump is. Thanks, Airtool.
There is a spring loaded idler pulley somewhere on your serpentine belt. Put the wrench that fits on the head of the bolt in the center of the idler pulley, and remove the tension from the belt, and remove the belt.
There are three holes in the pulley for the raw water pump, that you can get a socket, and extension into and on to the bolts that hold the raw water pump together. Remove those three bolts, and you can remove the front half pf the raw water pump, exposing the impeller, just like the picture above.

[WakeSlayer]

Why did you replace your engine?

[AirTool]

Why did you replace your engine?

From one of his earlier threads...click on his user name and read his threads.

"I had a hard lesson learned this winter. I live in the Northwest and it rarely gets below freezing. Boat was covered in a barn and had a lightbulb in engine compartment. Left for Xmas vacation and we experienced an abnormal week of snow and 19 degree weather. Engine froze and cracked the engine block."

[WakeSlayer]

Ouch. Always at least drain the engine. Always.

[husker]

On related question, how many folks replace the impeller each year? This is my first Nautique, and am deciding whether to have it replaced during the winterization (115 total hours on boat)

[ClemsonDave]

I replace it every year. However, if you don't replace it, make sure you pull it out for the winter. Many of them break up b/c they sit for months and the rubber ribs get stuck to the side walls. When you crank it up in the Spring, it rips the ribs off.

[WakeSlayer]

I feel that having a block full of antifreeze prevents the above described problem for us in the more frigid parts of the country. I do not replace mine every year, but always keep a spare on hand for each boat. That said, I believe the manual says to replace annually.

[8122pbrainard]

I don't pull my impellers in any of my boats nor do I change them on a regular basis. It's been 28 years on my 64 and 26 years on my 54. My 77 I've only had for 3 years so it's still young! I've never had a problem!!! Old wives tales?? Maybe impeller manufacturer tales!!!!

[WakeSlayer]

Nor have I, Pete. Have replaced them, but never lost one. You history is a bit longer than mine, but the same, nonetheless.