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Old 09-24-2018, 04:10 PM   #1
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Engine raw water intake screen

Attached is a picture of our raw water intake screen, the couple specks you see is the only light coming through, in other words, completely clogged up, probably contributed to our engine blowing a couple of months ago. Having trouble finding a replacement screen and we aren't seeing a way to remove the screen. Any suggestions?Click image for larger version

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Old 09-24-2018, 06:29 PM   #2
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Is it possible to put it on the hard, remove and have a new screen made?
Ought to figure out a way to back flush the screen too.
IF you have a wet exhaust, consider an alarm.
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This is not an endorsement. I have NO financial interest nor association with the company.
Then I read somewhere about run-dry impellers. Basically, they can survive a little bit longer than a standard impeller.
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Old 09-24-2018, 06:59 PM   #3
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Nice piece of hardware. I’ve never seen one like it. I’d bet it is very old and no longer made. Nobody uses that much bronze anymore.

You’re going to have to get the screen out and McGiver a new one.
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Old 09-24-2018, 08:46 PM   #4
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Nice piece of hardware. Iíve never seen one like it. Iíd bet it is very old and no longer made. Nobody uses that much bronze anymore.

Youíre going to have to get the screen out and McGiver a new one.
She's already on the yard, no sign of brand name, like you say, got to get the old one out and MacGyver another one in, or replace the entire unit. To be continued.......
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Old 09-24-2018, 09:07 PM   #5
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Any way to pull the top cap off? Looks like that may be the access point.....
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Old 09-25-2018, 02:57 PM   #6
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Well a little bit of McGivering, washed it with baking soda and white vinegar several times, put a vacuum cleaner on top to see what would come out and low and behold we discover it was a one way flap not a screen! Scrubbed the inside real well, cleaned barnacles out from the underside and it's squeaky clean. Been a good day.
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Old 09-25-2018, 04:47 PM   #7
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Our Groco sea cocks have metal strainers. When we're in salt water, after washing with a brush and water, I put them in a plastic pail with a cup or two of On Off hull cleaner.

STAND BACK! Make sure the pail is where the fumes won't affect something else. They come out shiny like new.
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Old 09-25-2018, 06:09 PM   #8
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These guys make custom strainers. I had them make new ones for my WWII strainers.

Custom Strainers & Baskets for Commercial Applications
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Old 09-25-2018, 06:09 PM   #9
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I have two large bronze Sen Dure Y in line strainers for the engines.
They were missing their screens, likely had decomposed on a previous owner.

I made new screens from plastic mesh made for some kind of stitch craft bought from Michael's arts and crafts store. Bent them into a cylinder, (may have to use a heat gun to soften to prevent cracks) and use a light weight copper wire to stitch it together. So best thing it is works and the plastic can not corrode.
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Old 09-25-2018, 06:21 PM   #10
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Well a little bit of McGivering, washed it with baking soda and white vinegar several times, put a vacuum cleaner on top to see what would come out and low and behold we discover it was a one way flap not a screen! Scrubbed the inside real well, cleaned barnacles out from the underside and it's squeaky clean. Been a good day.
Thatís strange, no strainer. Do you have a strainer elsewhere in the line?
I would bet it originally had a strainer screen in it.
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Old 09-25-2018, 06:49 PM   #11
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I have those strainers in our boat. The top unscrews and the strainer just sits inside. Iíll grab a pic of the strainer this week for you.
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Old 09-25-2018, 09:15 PM   #12
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Thanks, that will help.
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Old 09-25-2018, 09:22 PM   #13
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Quote:
Originally Posted by Lepke View Post
These guys make custom strainers. I had them make new ones for my WWII strainers.

Custom Strainers & Baskets for Commercial Applications
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Originally Posted by HopCar View Post
Thatís strange, no strainer. Do you have a strainer elsewhere in the line?
I would bet it originally had a strainer screen in it.
We do, it's mounted on the engine that hasn't arrived yet. It makes sense that a strainer would be there.
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Old 09-30-2018, 03:25 PM   #14
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As promised. They just slide up and out on ours.

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Old 09-30-2018, 04:17 PM   #15
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Beautiful piece of bronze and what looks like monel. AND, is that a hose barb fitting that also has internal NPT threads? Nice design!
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Old 09-30-2018, 05:10 PM   #16
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As promised. They just slide up and out on ours.

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Extremely helpful! That's exactly like ours. Is there a flap at the bottom of the housing below the screen?
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Old 09-30-2018, 06:00 PM   #17
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That’s a nice piece of hardware. I wonder who made it? Any markings on it?
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Old 09-30-2018, 06:14 PM   #18
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This is a gadget I use to back flush from the strainer through the hull.
It is only a temporary installation because the hose fitting is just brass. When I pull the basket for cleaning, I put the cleaned basket back, hook up the hose, back flush for a few minutes then replace the original strainer housing top and everyone is happy. It has saved me the cost of a diver more than a few times.
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Old 09-30-2018, 10:50 PM   #19
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Iíll have to check for any flap and markings. Traveling for work this week and next with a break in between. If I make it to the boat Iíll check for both.
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Old 10-05-2018, 08:39 PM   #20
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While that looks like a nice piece of gear, I much prefer the very much larger sixes of Groco sea strainers with the see-through glass/acrylic bowls.
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