Thread Tools Search this Thread Display Modes
Old 11-23-2011, 04:39 PM   #1
Lt. JG
Wild Bill's Avatar
Join Date: Nov 2011
Location: Marysville, Washington
Posts: 38
Default After Salt Flush ?

We recently purchased a 24 ft Maxum and plan on using it in the salt water a lot next summer.

We will be tailering the boat and upon examining the hull while out of the water, I noted a raw water intake in the hull.

My question is this: To flush the salt after use, will the ear muffs on the out-drive be sufficient or should their be water connected to the hull intake also ??

I don't want to overheat the engine or ruin an impeller.

Thanks for your help !

Wild Bill is offline   Reply With Quote
Old 11-23-2011, 05:17 PM   #2
biggerseagar's Avatar
Join Date: Dec 2010
Location: central Illinois
Posts: 2,119

Well first welcome to the website! Congrats on your new baby and we all hope you have lots of fun with her!

Now for the question in hand.........What year, engine and outdrive system do you have and is it a closed colling system? If you are going to tell me a 5.7 and with alpha or bravo drive that would be about right. Now if you have a bravo drive your impellar is in the engine compartment and if you have a alpha drive the impellar is on the lower unit. Whatever the case the impellar should be looked to make sure it is in good condition. The closed cooling system is like a radiator in a car only in a boat, you have a heat exchanger that like a 4 foot round piece of salami. If you have one of these they need to be flushed also.

I'm going to guess and what you saw is the water inlet for your head-toliet (hope you have one) or do you have A/C? That would be what you saw about a 1/3 up from the stern on the your hull bottom.

To flush your engine with fresh water get a medium stream of water going through the ear puffs and place the ear puff on the lower part of the outdrive from the front to back end of the drive over your water pick-up vents. Don't worry if you have water leaking all over the place that is normal. Keep the water preasure down to medium.

Then let the water run for a few minutes and then start your engine up. Watch the temp guage and when the that gets about 160 or so/or levels off, you know everything is open and let the engine run for a couple more minutes. Shut the engine off first, then turn your water off and your done. If your in salt water all the time general maintence on your risers and manifolds are about every 5 or 6 years replacing them.

There are a bunch of flush systems that you attach to your engine that makes this process real easy, but are very pricey! For the most part you take a garden hose connection and snap it on to a another connection turn the water on flush and your done.They can extend the life of your engine in salt water.

I know others will chime in here to help if you have more questions or if have totally confused the youknowwhat out of you( Not my intentions)

Good luck with your new baby and Happy Thankgiving

biggerseagar is offline   Reply With Quote
Old 11-23-2011, 06:33 PM   #3
Lt. JG
Wild Bill's Avatar
Join Date: Nov 2011
Location: Marysville, Washington
Posts: 38

The boat is a 2004 and has a 5.0 liter with an alpha out drive, it has a fresh water cooling system.

I am not very well versed on the systems yet , thus the questions. Didn't know the head used water from an outside source.

I have heard of people using a "fake lake" and thought maybe the inlet in the hull was an inlet for the cooling system.

Thanks for all your help.
Wild Bill is offline   Reply With Quote
Old 11-23-2011, 07:20 PM   #4

seapuppy's Avatar
Join Date: Nov 2005
Location: Everett Wa
Posts: 4,681

that helps a bit more...the 5.0ltr engine draws water up thru the leg or outdrive...on the sides of the lower unit are a series of vertical install or attach a pair of muffs or cups that are connected to a water hose...make sure the water hose has enough pressure....turn on the water...then start the engine...the water is drawn thru the leg up into the engine and then flushes out the salt this after every use...if the weather is turning freezing temps.....then you really need to drain the engine or replace the water with antifreeze...the pink stuff will work plenty...unless your in alaska....then use the stuff for serious freezing temps....

the inlet on the bottom of the hull....well...if there are 2 of them..then you have one for the head intake...when you pump the head takes water from the outside water..and uses it to flush the toilet bowl......from there it is pumped to the san tank for pump out later...
now if you also have another intake for your ac system....not much to do there....

hope this helps...

Don't compare your life to others. You have no idea what their journey is all about.
SSN683 Association member
Par Excellence
2008 Bayliner 340 - "Wild Whim"
I live in my own little world....but it's okay-they know me here!!!

Avid practitioner of the martial art: KLIK-PAO.

Anyone that sez "Size doesn't matter" has never owned a boat!
seapuppy is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 01:20 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.