Water out of one side of exhaust when hooked to the hose? VIDEO
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Water out of one side of exhaust when hooked to the hose? VIDEO

  1. #1
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    Default Water out of one side of exhaust when hooked to the hose? VIDEO

    Is it normal for water to only come out of one side when hooked to the hose? I disconnected the hoses and they seem to be flowing water, checked the elbow in the snail, no problem there. I did feel a lot of calcium when I stuck my finger in the snail. Is this normal? Any input is appreciated

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    Senior Member Nosjunkie's Avatar
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    If plumbed correctly it should dump out both sides...
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    Senior Member jetboatperformance's Avatar
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    Might try a bit more water pressure running on the hose like you have it water flow in these motors takes the path of least resistance and of theres the slightest restriction on one side it simply wont flow , also try momentarily "pinching" off the side that's flowing to get water to begin on the other...

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    Senior Member bp298's Avatar
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    Quote Originally Posted by jb1314 View Post
    Is it normal for water to only come out of one side when hooked to the hose? I disconnected the hoses and they seem to be flowing water, checked the elbow in the snail, no problem there. I did feel a lot of calcium when I stuck my finger in the snail. Is this normal? Any input is appreciated
    hard to tell in the video, but is the boat level, side to side? and is the bow "up"? like, is the boat setting like it would be in the water?

    it's not uncommon for logs to build up sand/crap in the water jackets. which would cause restriction on one side versus the other. with no flow, the right side log is going to get way hot a long time before the left side. if the hoses are plumbed correctly, and free flowing, I'd remove the log, remove the fittings, and flush/blow any crap out of the water jacket. and if there's crap in the log water jacket on one side, there's probably crap in the log water jacket on the other side, just not enough to restrict flow.
    either way, I wouldn't run it very long like that because stuff will overheat, and there's a long list of bad things that can result from that...

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    Thanks for the heads up. No the boat is sitting practically level front to back and it's leaning to the right, side that is clogged. Luckily I'm in no hurry to try to blow the motor so I'll start pulling the logs. Another item added to the list...

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    I agree with Tom. I had the same issue until slightly closed the over board dump, doing that gave me enough water pressure to cool both headers.

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    It's higher on the right side, side with no flow. Gonna change some hoses and try the pinch test Sunday. I'll let you know how it goes. I appreciate all the feedback. Heck I didn't even think it woukd be running at this point. I owe to this forum!

  10. #8
    Senior Member Nosjunkie's Avatar
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    Dont pull the logs with out disconnecting the hose first to see if water is coming out... Start at the beginning disconnecting your cooling lines and running the water. You dont have to start the motor to run the water.. but after you done Id start it to make sure there is no water in the exhaust.
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  11. #9
    Senior Member Tinkerer's Avatar
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    Look for a blockage in the side that has no water output. With boats that have silent choice when the rubber flapper in the Y pipe goes bad it falls down the Y pipe and partially blocks the exhaust and this increases the pressure in the exhaust and that will send the water to the other side.

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    Mine does the same thing until the thermostat opens up.

  13. #11
    Senior Member Schiada 201's Avatar
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    If this is a Chevrolet there is a special thermostat housing that equalizes the water flow.

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    Problem solved. Thanks guys. Was a rookie error. Adjusted the gate valve down and got water flow. On a side note, at least it has all new hoses now. Needed it anyways. Now on to the next problem...

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