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rhodges

  • Karma: +0/-0
running hot
« on: June 21, 2016, 07:47:47 AM »
Boat is running hot with very little water coming out the pee hole at idle.  I back flushed the engine and got out a lot of sand but still running hot (190 or higher at idle).  Engine is not running lean and must have blockage.  Before i pull everything apart are there any "usual culprits" that cause blockage?  I'm assuming that the water line to the jet is just an opening in the bowl (i blew into the line and it is clear).  Any suggestions?
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MerikaRogers

  • Karma: +0/-0
Re: running hot
« Reply #1 on: June 21, 2016, 09:54:22 AM »
I'm having the same issue. But I think mine is an old gauge not reading right
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GT Jets

  • Karma: +192/-0
Re: running hot
« Reply #2 on: June 21, 2016, 09:55:01 AM »
Block likely full of sand
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  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
  • Boat #2: 19' Bubble deck Jet BBC Berkeley
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Quote from: Brad @ SoCalJetBoats.com on December 22, 2009, 07:40:31 PM
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Quote from: IRRebel on June 11, 2011, 07:30:45 PM
Time to man up and yank it John!  :banghead:
Ray

TJS Nordic

  • Karma: +2/-0
Re: running hot
« Reply #3 on: June 21, 2016, 11:48:05 AM »
Might want to remove a freeze plug to remediate the sand as well. I used a cheapo McMaster strainer. See pic.

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steves86ta

  • Karma: +41/-0
Re: running hot
« Reply #4 on: June 21, 2016, 04:44:24 PM »
Quote from: TJS Nordic on June 21, 2016, 11:48:05 AM
Might want to remove a freeze plug to remediate the sand as well. I used a cheapo McMaster strainer. See pic.



do you have a link?
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1980 Bahner 21' Mini Day
1968 Rogers project

Your Mom

  • Karma: +20/-0
Re: running hot
« Reply #5 on: June 21, 2016, 05:11:14 PM »
Pull the two drain plugs on block. One on each side. Get a straw an shove it in/out of the drain while turning water on/off. It will take some time to get sand/debris out. Once water is flowing it will pass right over the sand, so shut it off when you dont see sand. Soon as you shut the water off, it will drain sand with the last bit of water flow. It might take 30+ minutes per side. I do this to my block at the end of every season an get about a cup of sand/debris each time from each side. I dont beach my boat nor run in shallows.
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el mojado

  • Karma: +15/-0
Re: running hot
« Reply #6 on: June 21, 2016, 11:51:01 PM »
Quote from: TJS Nordic on June 21, 2016, 11:48:05 AM
Might want to remove a freeze plug to remediate the sand as well. I used a cheapo McMaster strainer. See pic.


Is this a plastic dealio??
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I once tried to NOT have a good time. It just didn't work out!

aquaholic72

  • Karma: +54/-0
Re: running hot
« Reply #7 on: June 22, 2016, 01:13:16 AM »
When i bought the longblock for my flatty it had originally came out of a jet boat, when i bought it they said it ran but it had started getting hot so they pulled it out thinking it needed to be gone thru, they were right it did ..BUT. when i tore it down i shit you not 40 pounds of beach sand came out of that motor. When i pulled the freeze plugs it looked liked it had been hard blocked. It was fun whackin it with a mallet and watching it all come out!!! Lol even got some tore up plastic bags out of it...

Your Friendly local v-drive owner
« Last Edit: June 22, 2016, 01:26:32 AM by aquaholic72 »
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  • Boat #1: 72 aquacraft flatty v-drive
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Your friendly local v-drive owner. 0o

TJS Nordic

  • Karma: +2/-0
Re: running hot
« Reply #8 on: June 22, 2016, 04:53:07 AM »
Quote from: el mojado on June 21, 2016, 11:51:01 PM
Is this a plastic dealio??

Yes. Never had an issue. Sorry I do not have a link. Boat since gone. I know it is somewhere here on SCJB.
T.J.
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Teamwindle22

  • Karma: +5/-0
Re: running hot
« Reply #9 on: June 22, 2016, 09:13:34 AM »
Make sure it doesn't have a t-stat, had a few buddies that had this problem and they ended up having one and was causing the water to not flow as well. Taking out all the freeze plugs and draining is a good idea as well 👍🏻 good luck partner


Teamwindle🚤🇺🇸
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TrollerDave

  • Karma: +32/-0
Re: running hot
« Reply #10 on: June 22, 2016, 12:37:25 PM »
Quote from: rhodges on June 21, 2016, 07:47:47 AM
Boat is running hot with very little water coming out the pee hole at idle.  I back flushed the engine and got out a lot of sand but still running hot (190 or higher at idle).  Engine is not running lean and must have blockage.  Before i pull everything apart are there any "usual culprits" that cause blockage?  I'm assuming that the water line to the jet is just an opening in the bowl (i blew into the line and it is clear).  Any suggestions?

Are you in the Southwest, boat on the Colorado river? I hope it's not quagga mussels.
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