SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: K_ray26 on May 29, 2014, 12:43:21 AM
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So last weekend when I took the float out for the first time shoot me if I'm stupid but when idling an moving looks like steam coming from outta my exhaust but when I'm going at about 3k theirs nothing only when idling is it doing this so my question is is this normal an if not how the heck do I fix it I also had no over heating issues boat never good an not hot an ran like a champ all day
Kyle Thomas
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Normal for water injected headers
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You do not want any water injected into the exhaust below at least 1500 rim due to water reversion into engine.
You do want a fine mist or see steam above that for cooling of the headers. It sounds like the basset tee is not working properly
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I thought you had logs on your boat
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So how do I fix it lol
Kyle Thomas
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if you have logs steam CAN be normal, but it should be a little cause for concern. steam means cold water is hitting a hotter than balls surface and vaporizing. why is that surface so hot? did you just run it like crazy and then go back to idle? so something that is hot is now getting a lesser amount of water flowing through it? just keep an eye out for any blockages in your cooling lines and that your exhaust water dumping is "normal." remember that "too hot" can mean possibly burning your rubber exhaust hose... its only good to a few hundred degree's and that water flowing through it keeps you from having a giant hole and a giant leak into your boat.
when i do a run and i slow down quickly ill get some steam and then it will go away.
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It's weird cuz their cool to the touch
Kyle Thomas
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They are cool to the touch because you have the water running through them. Mine are the same way, except mine probably still get warmer than yours. But pipes is right, theoretically you shouldnt be able to see much of it until a little higher rpm. Does it look like this?
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They are cool to the touch because you have the water running through them. Mine are the same way, except mine probably still get warmer than yours. But pipes is right, theoretically you shouldnt be able to see much of it until a little higher rpm. Does it look like this?
yea just like that
Kyle Thomas
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Yah man thats the water through your headers. Which in turn keeps your headers "cooler." But also right there in my pic im at probably 1200-1800 rpms.
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And if you have logs it might be a little different. I wouldn't know about those.
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This is what I got an when idling I'm at about 700 an it's still doing it
Kyle Thomas
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Those are logs.
steam at an idle is normal then above that it's pushing through more water which is too much to boil to make steam. You should see water coming from the exhaust at that point
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Those are logs.
steam at an idle is normal then above that it's pushing through more water which is too much to boil to make steam. You should see water coming from the exhaust at that point
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don't really wanna jump outta the drive seat doing about 40 to go check lol but next time I'm in the water I will check
Kyle Thomas
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don't really wanna jump outta the drive seat doing about 40 to go check lol but next time I'm in the water I will check
Kyle Thomas
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Have a buddy go with you, have him drive for a minute while your back there looking. You should be fine though. Sounds like your running right
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I'm sure I am it just scared me a little that's all thanks guys for the quick response
Kyle Thomas
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