Really Dumb Question - I'm sorry |
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escmanaze
Groupie Joined: September-02-2012 Location: United States Status: Offline Points: 79 |
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Posted: December-24-2019 at 4:12pm |
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Ok, so first, I'm embarrassed to even ask such a dumb question. I apologize. Somehow I've skied my whole life and never learned this.
Can I start my boat and run it for a minute or two when it's not in the water? Maybe I just watch the temperature and be sure to shut it off before it gets hot? Or is that not ok because my impeller will be running dry in there and it will ruin the impeller? Or is it not ok for some other reason? If the answer is no, then I guess it is officially time for me to buy one of those "fake a lake" things. Any recommendations on those would be great. Sorry I'm so clueless. thanks for the help. |
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bfootr
Senior Member Joined: March-04-2019 Location: Benson, NC Status: Offline Points: 138 |
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Speaking from experience, you will most likely destroy the impeller by running it dry. Then, like me you’ll have to replace the impeller and remove the broken vanes in the lines. Also fyi, even with water hookup to the engine, you don’t want to spin the propeller or you’ll run the risk of destroying the carrier bearing in the strut. Hopefully, this will save you the learning pains that I went through.
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Jonny Quest
Grand Poobah Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 2861 |
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Scott:
A better option is to install a "T" with a garden hose attachment. Very simple to do with Home Depot items. Probably less than $10. Call me and I'll help you build/install. For reference, you can look at the thread shown in the LINK below: Timmy "T" LINK JQ |
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Current
2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum |
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MrMcD
Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3597 |
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Go with the Timmy T, it works very well and easy.
Thank TRBenj for perfecting it and sharing the how to details. Less than $20 in your local hardware store will have you up and running with one. |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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gt40KS
Gold Member Joined: August-05-2017 Location: Wichita Kansas Status: Offline Points: 943 |
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Also speaking from experience, with a standard impeller the quick & simple answer is no. In some cases I've heard of guys burning through a brand new impeller in just 15 or 20 seconds of running without circulating water. Having said that, I've personally run the engine on previous boats for a few seconds as well when pulling the boat from the water - most times anyway. I only had to replace the impeller once with either boat and both times were after several years of use (not that I'm recommending this ...). Now I have a 'run dry' impeller which is suppose to be able to run dry 15 minutes or so. I still do not do this, nor recommend it, but for me it's just an added piece of mind.
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JCCI
1995 Ski Nautique GT40 |
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MrMcD
Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3597 |
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I had the habit of turning the key and starting the boat before every trip years ago. As soon as the engine fired I turned it off, I just wanted to know the battery was strong and the engine would fire at the ramp.
It worked for a while and then one day I heard strange noises when it fired. The noises turned out to be a torn up impeller. Totally my fault. Starting one dry is a crap shoot, it will damage the impeller and sometimes they just tear apart. Use the Timmy T and you will be good. The T also has the advantage of testing your vacuum on the intake side, if the T works you know the system is sealed tight so it will work in the lake or on the T. |
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Nautiquehunter
Platinum Member Joined: December-31-2008 Location: Lake Lanier GA Status: Offline Points: 1010 |
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Take the belt off the raw water pump . Don't run it more that about a minute.
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67 ski nat
Platinum Member Joined: July-19-2018 Location: Santa rosa Status: Offline Points: 1181 |
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The TEE garden hose connections are a must for longer tuning runs in driveway etc
Borderline genius to loosen belt for 1 minute firing up checks I also place a toilet plunger under boat to block scupper and keep garden hose water in system |
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bfootr
Senior Member Joined: March-04-2019 Location: Benson, NC Status: Offline Points: 138 |
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67 ski nat
Platinum Member Joined: July-19-2018 Location: Santa rosa Status: Offline Points: 1181 |
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Love that 3 way divert valve, do they come in brass
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Besides being simple and allowing running out of the water, one of the great features of the "Timmy T" is it being an open system, it will not mask problems with the RWP. With a closed system, the pressure from the hose will mask RWP issues. |
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67 ski nat
Platinum Member Joined: July-19-2018 Location: Santa rosa Status: Offline Points: 1181 |
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Great point. Not intuitive but makes sense
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bfootr
Senior Member Joined: March-04-2019 Location: Benson, NC Status: Offline Points: 138 |
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I haven’t seen a brass version.
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Actually pretty common. Try McMaster Carr |
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RealDeez
Senior Member Joined: August-01-2019 Location: MI/IN Status: Offline Points: 125 |
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I was looking at this one. They even suggest you bundle it with barb fitting adapters. At least they suggested it to me...
Amazon 1 inch brass diverter I was planning on running it out of a washtub filled by a hose or something as a way to run/ test out of the water. |
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Lake James, IN
93 Sport Nautique |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Keep in mind:
I highly recommend going with the "Timmy T" |
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RealDeez
Senior Member Joined: August-01-2019 Location: MI/IN Status: Offline Points: 125 |
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Right. Wasn't necessarily going hook it straight to the hose though. And gives me the controversial option of sucking antifreeze through the system.
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Lake James, IN
93 Sport Nautique |
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KENO
Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 10686 |
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Scott, you ski with JQ so why not just take him up on his offer? Don't let him use any RED parts though |
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escmanaze
Groupie Joined: September-02-2012 Location: United States Status: Offline Points: 79 |
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correct, yes. I didn't want him to see me in my shame on here asking such a dumb question, but now that the truth has been exposed I might as well take him up on his offer for help. Super good guy on the forum and IRL. Thanks again everybody for the discussion. I appreciate it. I'm a little less dumb today than I was a month ago. |
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Ryjamsan
Newbie Joined: January-10-2020 Location: Slidell LA Status: Offline Points: 12 |
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Where exactly would on place this on a 1975 ccsn
302ford |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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James, Between the sea water thru hull and the trans cooler. If your engine has been equipped with a sea strainer, then I suggest between it and the cooler. In 75, strainers weren't coming from the factory. |
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