How do you hook the hose to the pump?


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When the boat is out of the water is the valve suposed to be closed or open when the water hose is hooked up and when I take the boat to the river do I leave the valve closed or open when its sitting in the water after I get it off the trailer

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[quote author=GT Jets link=topic=20301.msg230198#msg230198 date=1398044076

Ever seen someone post pictures of damage on a pump from running it dry?  Bet not.   

GT
[/quote]
lol i had the pump lock up on my old hornet, focking thing stalled the motor and i thought the motor had seized, just ask Jim Brock he got the pleasure of rebuilding it at midnight on a friday night because i was making sure the motor was good before i went to the river...
just my personal experience
ralph

lol i had the pump lock up on my old hornet, focking thing stalled the motor and i thought the motor had seized, just ask Jim Brock he got the pleasure of rebuilding it at midnight on a friday night because i was making sure the motor was good before i went to the river...
just my personal experience
ralph

Just curious more than anything. Would spraying some water in it have helped at all? Hoping you're going to say no.

Any idea what failed first?

Its going to be awesome to be on the river soon

Love that hull style

How long after starting the engine do I need to turn the valve on for the water hose when the boat is out of the water its my first jet boat and I want to make sure I start it the right way

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if you have headers it does not matter, logs after you start it,and if you want to do it rite you will disconnect the pump..

just my 2cents

I got it fired up with the garden hose ok today but when I take it to the river do I need to have the water valve open or closed

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Which?

Wha?  Who?



Whatcha mean?

I mean the valve under the engine for the water when the boat is in the water do I need it to be open or closed when I start the boat out of the water and I hook up a garden hose I open the valve and water comes out of the headers so when I'm at the river I would assume I should have the valve open for water flow is that right

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I mean the valve under the engine for the water when the boat is in the water do I need it to be open or closed when I start the boat out of the water and I hook up a garden hose I open the valve and water comes out of the headers so when I'm at the river I would assume I should have the valve open for water flow is that right

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Gotcha.

Yes the valve would be partially open. If this is a gate valve the valve setting is quite important.

Since there is no water pressure when the motor is not running, you don't need to close the valve with the boat in the water.

If you do indeed have water injected headers with a Bassett type tee, here is a proven way to set up the water valve (this is for a gate valve).

Get the boat in the water and pull out of the way of people at the ramp, find a spot out of the way and start the boat with the valve about half open and run it at idle, there should be NO water coming out of the headers.

After a few minutes of running, start closing the valve slowly (about a half a turn at a time) until the water temp starts to rise (look for about 140-150*F at the most).

Once that has happened, take her out for a cruise and watch the headers for steam, they should begin to steam at 1500-1800 RPM. If they come in too early (below 1500) you need to pinch down just a smidge on the valve (careful, those headers will be hot as hell). If they come in too late (above about 1800) you need a bit more water.

Your done. If something does not work the way you think it should, write it down.

Write down;
How many turns the valve is open/closed.
At what RPM the headers come in.
What the engine temp. is at idle.
What the engine temp. is at WOT and also cruise.

The temperature on the gauge might be all over the place for the most part. That is OK.

Figure about 150* at idle and probably about 120* or so at WOT. It can move pretty quick, so watch it for a minute or two before making any adjustments.
I keep my hand in the dump line stream when I am setting them up, but I have done over 100 of them.

Good hunting.

GT

Thank you that is a lot of good info I can use to gauge the activity of the cooling of the motor I really apriciate it I'm new to all of this but the motor and the boat is so interesting to me thanks again the first trip will be all learning and figuring out how the system works the boat is really coming along and with this crucial info it is looking like a winning plan thanks gt

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