Seawater Strainers
 

Hey... someone should warn us... 525 freshwater cooled should always... always have seawater strainers!

The salt water passes through three heat exchangers that are just very small copper tubes. The least bit of seaweed or debris will clog them. Then it's a long hard job to get them cleaned out again. I learned the hard way!

Now I need a recommendation on sea water strainers. While I'm putting them in, I would like to have a cool color... maybe blue to match the 525's?

Who makes some good ones that are easy to sight when clogged and easy to clean out?

Thanks for any recommendations... JON

Re: Seawater Strainers
 

Does the 525 have the same closed cooling system as the 496's ? If so do 496's need them as well? I have been wondering this myself.

Re: Seawater Strainers
 

Yes. Antifreeze runs through the engine and the salt water runs through these tiny little tubes in three different heat exchangers that get clogged up very easily... And they are a bear to clean out. I spent all day yesterday in the engine compartment.

JON

Re: Seawater Strainers
 

I wouldn't run any boat without a sea strainer, protects the impeller, t-stat, coolers, circ pump + it's a visual check for water flow on startup.

Re: Seawater Strainers
 

Call Teague Marine. they have some on sale right now.

Re: Seawater Strainers
 

I would recomend strainers for both the 525's, and the 496's. I have a pair of 496's. Was having constant problems with the coolers plugging up. I went with Hardin Marine strainers, due to the ease of cleaning. Mine are difficult to reach, and having the screw in lid from the top was the best option for me.


http://www.hardin-marine.com/product...-strainers.htm

Re: Seawater Strainers
 

Look for ease of mounting and easy clean out.

Re: Seawater Strainers
 

Fred, I like the one on the left. Is that your brand or?

I also just saw your post on the KPM ones.

Purple real nice...

Re: Seawater Strainers
 

I wouldn't buy anything a Teague Marine even though I'm in California...

Isn't that like moving over to the dark side?

Re: Seawater Strainers
 

The top photo is the Stainless Marine Super Strainer.

The bottom two are ther new CMI strainers.

Re: Seawater Strainers
 

You want stainless not aluminum. The salt water will eat that in no time.

Re: Seawater Strainers
 

im really happy with my kpms, they wont let a single grain of sand pass thru & easy to clean out. rm

Re: Seawater Strainers
 

I just bought a boat with a 525, not sure it has strainers in it, I will find out next Monday. How much are those you are showing in you Pics?

Re: Seawater Strainers
 

what size inlet do you need for the 525 closed cooling?

Re: Seawater Strainers
 

Well... another satisfied customer..... :evilb:

Re: Seawater Strainers
 

At least my drives are coated. The KPM strainers I have are raw and on there way to becoming dust. I've never seen anything disintegrate so fast.

Re: Seawater Strainers
 

Sounds like they didn't get anodized or there is some stray voltage at work

Re: Seawater Strainers
 

hi ;
The strainers are coated in 50 micron hardcoat to MIL spec. Please send these back for warranty. we will send you two new ones. We have about 900 of these units in the field , all over the world including the military and have never had a problem.
Could you please email. with your address and we will get some sent to you with immeadiate effect.
What concerns me is you say that they are not coated , and I trust your judgement on this. Two years ago we supplied 8 strainers to a customer who specified uncoated against our reccomendation. . If they are uncoated We can pin point where they come from. We now serial number every product and pump chamber to eliminate these problems .

With reference to Aluminium; in salt water, you are not wrong , but it only occures when a potential charge is set up(Galvanic Reaction) and the principle of nobility (dominant metal) . Hard coating is what we call a dielectric which means it does not carry a current, and this in turn stops corrosion. Put a multimeter on hardcoat and see if it works.

Aluminium alloys nowdays are very good and in the raw condition very close to admiralty brass. Thats why so many parts are now made in aluminium. I have seen stainless steel rust But lets face it Titanium is the best but who can afford it.

With the weather we have in england and wisconsin we know a lot about corrosion and that why all limeys look so pasty since we have no sun . We test all our products and competitors products in uk waters which are quite harsh . You would be amazed what we find.

regards Jules