Overheating - where do I flush from

[Escondido]

Took the boat out today and there was a lot of crud floating in the lake from the big rains last week. Probably should have gone back in but didn't notice it until I was up the river a ways. Anyways boat started overheating. Does fine at slow speed but seems to be starved for water since it gets hotter the faster I run. I am hoping that my problem is just clogged hoses and not something more serious.

I am thinking that I just picked up some crud and need to blow it out. Unfortunately, I am working with dial-up internet so it is making my research tough, searching at 49kbps is oh so painful. Can anybody help me with directions on where to flush? Is there any easy connection or do I have to disassemble hoses?

Are these things like cars, that when they run hot you need to replace the thermostat?

I am due for some maintenance so I am trying to decide if this is something that I can do on the lift or let the boys from Ski Dock figure it out.

Thanks for the help.

[kko]

check inlet side of tranny cooler

[Razzman]

What model boat? What year? There's a lot of factors involved so more info is needed. Have you replaced the impeller? When was your last maintenance?

[lee]

Could be a bad impeller also.

[Escondido]

'06 22ve. 340hp. Only 23 hrs.

[Razzman]

Sounds like it's probably the impeller too me, sucked something up. That's the first thing i'd check.

[rensink]

we had this problem on our duck boat fine at slow speed and we would run it on the river but its got a sand bottom and the its a plate boat 1/4inch hull. i dont know if that will help much but it was the impeller on that.

[zad0030]

Your best bet is probably to take off the sea water pump and start there. Its one of the first things that the water passes through and it houses the impeller (for my boat)

[kko]

pull the inlet hose off tranny cooler first cheap,easy and the thing that clogs if you dont find any debris resticting flow then goto impeller. if you dont run a sea striner this will be a reocurring problem 4 you. just loosen clamp on inlet side pull hose off and check to see if there is a restriction. takes 30 seconds to check. trust me its where u wanna start.you might need to check the impeller as well but you MUST check cooler!!!!!!!!!!!!!

[yllw20]

Id check the impeller. you should change it every year. think it is rubber and has been sitting up for a while. I change mine the beginning of every season.

[Escondido]

Sea Strainer

Thanks for the input.

It is a little shallow around our dock and lots algae and other crap, along with all the stuff floating down river after a big rain. Given the problem I am having it has me starting to consider my boating environment a little bit.

I am thinking that I should consider the sea strainer. How many people are running this on their boat?

Is there any reason not to run one?

Thanks

[FIC]

Sea strainer is cheap insurance to keep the engine or impeller from a overheat condition, we dont let any boat leave our dealership without one . I agry with kko the first place to look is the tranny cooler they clog all the time.

[mtnsmith]

I have a sea strainer and it really opened my eyes to how much junk can actually make it into the cooling system. I bought my boat from FIC so I was glad to have him explain the reasons behind needing one. We too have tons of water plants at or near the surface and that is mostly what I end up dumping out of my strainer. I would definitely put one in if you have a lot of debris in your water.

[dogbert]

Took the boat out today and there was a lot of crud floating in the lake from the big rains last week. Probably should have gone back in but didn't notice it until I was up the river a ways. Anyways boat started overheating. Does fine at slow speed but seems to be starved for water since it gets hotter the faster I run. I am hoping that my problem is just clogged hoses and not something more serious.

I am thinking that I just picked up some crud and need to blow it out. Unfortunately, I am working with dial-up internet so it is making my research tough, searching at 49kbps is oh so painful. Can anybody help me with directions on where to flush? Is there any easy connection or do I have to disassemble hoses?

Are these things like cars, that when they run hot you need to replace the thermostat?

I am due for some maintenance so I am trying to decide if this is something that I can do on the lift or let the boys from Ski Dock figure it out.

Thanks for the help.

It's the impeller. It's happened to me before under similar circumstances. You probably sucked up some debris.

[jleger98]

I agree that its the impellar IF you don't have a strainer. If you have a strainer, its pretty tough for that crap to get into the impellar. I'm with KKO on this one.

As far as rubber impellars, I've never changed one in 5 years of boating. I always carry a spare, but never had to change one. Call me lazy, but I figure if it aint broke leave it alone. I believe they sell impellars now that are not rubber now that last a whole lot longer.