Bucket Method not sucking water
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=29897
Printed Date: November-18-2024 at 7:36am
Topic: Bucket Method not sucking water
Posted By: mbshaw88
Subject: Bucket Method not sucking water
Date Posted: May-18-2013 at 6:59pm
I tried to run my 83 Nautique in my driveway for the first time using the bucket method that is listed all over this site. I took the large hose off the water strainer and put it directly in to a bucket of water, but with the engine idling it was not sucking any water through.
One of the manifolds had a slow drip leak out of one of the plugs, but other than that, I couldn't see anything wrong.
What should I check for?
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Replies:
Posted By: 8122pbrainard
Date Posted: May-18-2013 at 7:53pm
Matt, Did you put the strainer inlet or discharge hose in the bucket? I ask since if you used the inlet, check the gasket of the strainer.
Have you removed the RWP say to replace the impeller? May have installed it backwards!!
On your leak - remove the plug, chase the threads with the proper pipe tap, clean up the plug and reinstall it along with some Teflon tape. Since pipe taps are tapered, don't go very deep as that will make the threads too large. Go maybe 1/2 turn when the tap starts cutting. That will just clean up the treads.
------------- /diaries/details.asp?ID=1622" rel="nofollow -
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/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique
64 X55 Dunphy
Keep it original, Pete <
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Posted By: mbshaw88
Date Posted: May-18-2013 at 9:05pm
I am almost positive I used the inlet as it was the bigger diameter hose and was leading to the engine. It was the one running under the driveshaft like in the picture here:
%20" rel="nofollow - http://www.correctcraftfan.com/forum/forum_posts.asp?TID=24767&title=how-to-run-your-boat-out-of-water-bucket-method
I have not replaced anything on the boat since I got it. What is the RWP?
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Posted By: Bones71
Date Posted: May-18-2013 at 9:35pm
RWP is the raw water pump.
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Posted By: 8122pbrainard
Date Posted: May-18-2013 at 9:46pm
mbshaw88 wrote:
I am almost positive I used the inlet as it was the bigger diameter hose and was leading to the engine. It was the one running under the driveshaft like in the picture here:
%20" rel="nofollow - http://www.correctcraftfan.com/forum/forum_posts.asp?TID=24767&title=how-to-run-your-boat-out-of-water-bucket-method
I have not replaced anything on the boat since I got it. What is the RWP? |
Matt, http://www.correctcraftfan.com/forum/forum_posts.asp?TID=24767&title=how-to-run-your-boat-out-of-water-bucket-method" rel="nofollow - Your link didn't work so here's a new one.
I saw the picture with the hand pointing to a hose. If that's the one you used, it's the outlet and not the inlet. It goes from the strainer to the trans cooler. From the trans cooler, it go's to the RWP. Did you try to prime the suction side of the RWP in any way? Pouring some water down the suction side hose is always a good idea.
Have you ever run the engine without water even briefly? If so, there's a good chance the impeller was trashed. It's water lubricated. Even if you haven't run it without water, I suggest taking a look at the impeller. It's in the RWP!
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/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique
64 X55 Dunphy
Keep it original, Pete <
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Posted By: SNobsessed
Date Posted: May-18-2013 at 11:16pm
Matt - you may want to look at the owners & repair manuals in the reference section. It has good info on the rwp & other maintenance items.
------------- “Beer is proof that God loves us and wants us to be happy.”
Ben Franklin
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Posted By: mbshaw88
Date Posted: May-18-2013 at 11:17pm
So I hooked up to the wrong hose then? The one I connected to routed to the front of the engine.
I only ran it for about 7 seconds waiting for the hose to start sucking water from the bucket. The exhaust manifolds were barely warm.
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Posted By: 8122pbrainard
Date Posted: May-19-2013 at 6:02am
mbshaw88 wrote:
So I hooked up to the wrong hose then? The one I connected to routed to the front of the engine.
I only ran it for about 7 seconds waiting for the hose to start sucking water from the bucket. The exhaust manifolds were barely warm.
| You did not hook up the wrong hose. Any of them on the suction side of the RWP will work. If you use the hose between the RWP and trans cooler, you just won't cool the trans. However, since the trans takes some time to warm up, that hose would be ok too.
Mkae sure you tell us (picture would be great) of what you find about the RWP impeller condition.
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/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique
64 X55 Dunphy
Keep it original, Pete <
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Posted By: 8122pbrainard
Date Posted: May-19-2013 at 8:48am
8122pbrainard wrote:
Did you try to prime the suction side of the RWP in any way? Pouring some water down the suction side hose is always a good idea.
Have you ever run the engine without water even briefly? If so, there's a good chance the impeller was trashed. It's water lubricated. |
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54 Atom
/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique
64 X55 Dunphy
Keep it original, Pete <
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Posted By: mbshaw88
Date Posted: May-19-2013 at 2:09pm
No I did not try to prime the hose by pouring any water in it. I'll do that next time
The impeller looks good from what I can tell. No melting, scoring, or cracks on any blades. The gasket looked good too.
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Posted By: mbshaw88
Date Posted: May-19-2013 at 2:17pm
Spoke too soon. I took the impeller off and 2 of the fins are cracked halfway through. Would this be enough not to pull any water suction?
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Posted By: Hollywood
Date Posted: May-19-2013 at 2:59pm
Either way you are replacing that impeller so do that, verify you are putting the right hose in the bucket, and try again.
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Posted By: 8122pbrainard
Date Posted: May-19-2013 at 3:39pm
Matt, http://www.correctcraftfan.com/forum/forum_posts.asp?TID=29860&title=impeller-direction-question" rel="nofollow - Take a look at this thread to make sure the RWP orientation is correct for the engine rotation.
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54 Atom
/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique
64 X55 Dunphy
Keep it original, Pete <
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Posted By: GlassSeeker
Date Posted: May-19-2013 at 4:22pm
that is a little later than it should have been replaced...you caught it just in time.
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