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05 196 Hot at idle |
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frozenskier 
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Joined: September-19-2011 Location: northern ny Status: Offline Points: 102 |
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 Topic: 05 196 Hot at idlePosted: August-16-2017 at 4:08pm |
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Just noticed that at idle temp goes up to about 207F but running at speed, anywhere from 15-34mph temp drops back down in the 140-160 range. Guessing impeller is bad. This may have been covered in a previous topic, link to it would be helpful. Boat is running good but seems quite warm at slow speed. Thoughts?
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TRBenj
Grand Poobah 
Joined: June-29-2005 Location: NWCT Status: Offline Points: 21107 |
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Posted: August-16-2017 at 4:20pm |
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Air leak, impeller is most likely fine.
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MrMcD
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Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3590 |
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Posted: August-16-2017 at 4:30pm |
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If the impeller is more than 2 years old I would replace it. I have had a couple fail on me in the third year.
Air leaks can be at any hose connection on the intake side or at your water filter screen. |
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Orlando76
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Joined: May-21-2013 Location: Mount Dora, FL Status: Offline Points: 3108 |
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Posted: August-16-2017 at 4:50pm |
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Investigate strainer, more of a PITA than it's worth IMO. In fact, bypass for a test run and see what happens.
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Please support The Cystic Fibrosis Foundation
1976 Ski Nautique 351 Escort 1993 Ski Nautique purple and black 351 HO PCM |
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frozenskier
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Joined: September-19-2011 Location: northern ny Status: Offline Points: 102 |
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Posted: August-16-2017 at 5:06pm |
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OK thanks for the ideas. I will check hose connections. What would I be looking for on the Strainer? Water Leaking from it? I know it has a gasket in it that is seated properly.
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Orlando76
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Joined: May-21-2013 Location: Mount Dora, FL Status: Offline Points: 3108 |
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Posted: August-16-2017 at 5:46pm |
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Strainer, It'll suck air, not leak water. Mine gave me problems. I guess I could never get a gasket to seat correctly despite the fact they seemed perfect. , never found cracks or burrs nothing. Finally removed it for good.
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Please support The Cystic Fibrosis Foundation
1976 Ski Nautique 351 Escort 1993 Ski Nautique purple and black 351 HO PCM |
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fgroce
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Joined: July-05-2016 Location: Georgia Status: Offline Points: 350 |
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Posted: August-16-2017 at 6:05pm |
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Take a nut driver and make sure all hoses are tight. Takes more than a screw driver. Look for air bubbles in the strainer. If it has been running okay all summer and just started running warm also check the impeller.
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FGroce
88 Ski Nautique For 28 years Now 2002 Ski Nautique |
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frozenskier
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Posted: August-16-2017 at 6:39pm |
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I have changed an impeller on my old boat which was a 1989 w Ford 351W but the 330 excalliber is much different setup. Not even sure where the impeller is or how to check it.
Any You Tube videos or anything else that would give directions if I did need to change the impeller? Thanks, |
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quinner
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Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828 |
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Posted: August-16-2017 at 7:19pm |
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x
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quinner
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Posted: August-16-2017 at 7:41pm |
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Changing Impeller on Excalibur with Serpentine Belt:
15mm or adjustable wrench for the idler pully. 10mm socket with extension for the pump cover bolts. (see pic) 1. Take the serp belt off. (If you can't figure out how to do this, stop and take your boat to the dealer.) 2. Take the three cover bolts off - bolts stay with cover due to tiny o-rings. 3. Carefully twist the pulley and slightly mis-align the pump as you pull it out and the impeller will come out with it. Otherwise the impeller stays in the cavity. 4. Change out the four o-rings. One for the cover, three for the bolts. Some oil or soap as lube is handy but not required. 5. Squirt some dish soap on the impeller and lather it up with a bit of water. 6. Place the impeller on the shaft. 7. Then line up the impeller with casing and "top" at the top. Then rotate the pulley in the running direction and the impeller will slip right in. 8. Snug the three bolts. 9. Torque to 9 ft-lbs 10. Put the belt back on. 11. Get 'er back in the water. Disclaimer: this is a guide only. YOU are responsible for your work...not me.      
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frozenskier
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Posted: August-17-2017 at 11:51am |
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Thanks quinner, great pics. But I hope I found the problem last night. Grabbed the water strainer to see if it was tight and it broke off in my hand, nice clean break right below the threads. Looking now for a new one, hopefully that will solve the problem. Just in case I super glued it back together but hope I don't even have to try running the boat with that.
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Orlando76
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Joined: May-21-2013 Location: Mount Dora, FL Status: Offline Points: 3108 |
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Posted: August-17-2017 at 2:28pm |
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Not to be ugly but I don't think I'd trust a $25k first class ski tug with $1.99 super glue. Maybe swinghose from cooler to opposite side of transmission then it should reach to the intake?
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Please support The Cystic Fibrosis Foundation
1976 Ski Nautique 351 Escort 1993 Ski Nautique purple and black 351 HO PCM |
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quinner
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Posted: August-17-2017 at 2:32pm |
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If like my 206 that will not work without an adapter, hoses are different sizes.
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frozenskier
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Posted: August-17-2017 at 4:38pm |
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Much as I like to ski I wasn't really going to try the super glue option. Able to get a new strainer bowl today and will put it on tonight and hopefully the hot at idle issue will be solved.
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MrMcD
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Posted: August-18-2017 at 5:02am |
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Great, keep us posted
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frozenskier
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Posted: August-18-2017 at 11:24am |
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All fixed and running cool. Put some Teflon tape on each of the threaded connections to the strainer as well. Thanks for helping w the diagnosis, probably saved me time and $$s trying to figure it out myself.
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