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Topic: Plumbing, or.. what I did yesterday

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Sleek-Jet

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Posted: Sep. 18 2005,8:57 am

Post # 1

OK, so we had a little problem with fuel getting to the engine last time out. Ã‚Â

A little plubing project was born, to try to keep the same situation from happening again.

Here what it looked like before we started. Ã‚Â Andrew had already pulled the filter off, it was just to the right of the pump, but was mounted with wood srews to the transom and just about fell off in his hands. Ã‚Â Something different would have to be done. Ã‚Â I was thinking about mounting everything off a fabricated bracket mounted to the swim step hardware poking through the transom, but decided against it.

You can also see the old T fitting tied up to the wiring harness, we tried to just plumg the left hand tank to the pump, but the boat still wouldn't start. We found out why, but that will have to wait.

Edited by Sleek-Jet on Sep. 18 2005,8:59 am

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Sleek-Jet

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Posted: Sep. 18 2005,9:03 am

Post # 2

OK, so where to mount everything??? I needed to mount the new fuel selector and the fuel filter. After looking at it a while, I decided to use some aluminium strap along the small bulkhead on the rear piece of the dog house. Off to Lowe's I went and came back with some aluminium, hardware, and what I hoped was a pretty good plan.

Here's what it looked like about half way through mounting everything up. The selector is mounted, and I'd just got done drilling the holes for the filter.

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Sleek-Jet

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Posted: Sep. 18 2005,9:05 am

Post # 3

All the holes drilled and the bracket mounted to the dog house, it's time to re-mount the rear dog house and see what it looks like.

I should have put one more fastener right in the middle, just to balance things out. Symetry you know.

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Sleek-Jet

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Posted: Sep. 18 2005,9:10 am

Post # 4

And all done and plumbed up. The filter is clogged, since I can't get any fuel through it, but I should be able to remedy that rather quickly. I'm headed out this morning to tie everything up and make it look all neat and shit.

Oh, and about the carb. We knew we were getting fuel to the carb, but the damn boat still wouldn't start. :beat

Off came the carb and I tore it apart. Water water everywhere. Must have sucked a bunch of H20 off the bottom of the tank when we ran it "dry". Motors don't run well on that stuff.

Probably the reason whey the filter is all clogged up as well.

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Bullitt Bob Male

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Posted: Sep. 18 2005,11:07 am

Post # 5

Now that is some sanitary work! :good

Might be a good idea to clean out the gas tanks while you're feeling so ambitious today.

Then again, "Fock it!", it's NFL time today. Do plenty of :drink

instead.

| Member # 632 | Joined: 5-11-2004 |

stingray

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Posted: Sep. 18 2005,12:06 pm

Post # 6

looks clean, you can't beat a manual valve for dependability :good

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Sleek-Jet

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Posted: Sep. 18 2005,12:56 pm

Post # 7

To bad it doesn't work... :laugh

I've been fidelling with this all morning, but I can't keep the system primed. :beat

What's odd is that all the components are at the same height as they were before.

I think a couple check valves at the tanks would cure it, maybe. I just need to find a couple.

A dog doesn't care if you're rich or poor, educated or illiterate, clever or dull. Give him your heart and he will give you his.

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weldwade

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Posted: Sep. 18 2005,2:54 pm

Post # 8

Looks good Aaron, cant go wrong with a manual valve.. :good

Keep your GUNS!

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Oldsquirt

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Posted: Sep. 18 2005,7:50 pm

Post # 9

Sleek, not sure it's going to work with the Ã‚Â selector hooked up like that. The tanks normally connect to the "arms" of the valve with the output to filter/pump/engine being the center leg. Your pic shows the left hand tank connected to the "leg" and the output being off of the left "arm".

Since it looks like you have an electric fuel pump(first pic, just above the jet?), you might want to try moving the filter to a point after the pump instead of before.

Edited by Oldsquirt on Sep. 18 2005,7:55 pm

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stingray

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Posted: Sep. 18 2005,10:41 pm

Post # 10

did you check the flow of the valve? left and right is normally the tanks and center is supply to the motor, how fast is it bleeding off.

Edited by stingray on Sep. 18 2005,10:48 pm

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Sleek-Jet

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Posted: Sep. 19 2005,7:23 am

Post # 11

Quote (Oldsquirt @ Sep. 18 2005,7:50 pm)

Well, that's what I thought too... But the valve (a 3 way) is made so the L/R tanks feed in to the middle and outside connection, and the pump is fed off the inside... I should have bought a 4 way selector and it would have made more sense.

Yesterday, I plumbed it every way imaginable, and still it bleads off... as soon as you crack a hose end... whoosh... out comes the gas. Turn the pump off for 30 seconds and then back on... nothing.

I'm beginning to think everything is mounted to high in the boat.

A dog doesn't care if you're rich or poor, educated or illiterate, clever or dull. Give him your heart and he will give you his.

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stingray

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Posted: Sep. 19 2005,2:34 pm

Post # 12

I'm not so clear? If you keep the system closed it holds a prime? And as soon as you open a hose it bleeds off. that sounds right, it should. If I'm wrong help me.

| Member # 1275 | Joined: 4-03-2005 |

Sleek-Jet

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Posted: Sep. 19 2005,3:02 pm

Post # 13

Quote (stingray @ Sep. 19 2005,2:34 pm)

I'm not so clear? If you keep the system closed it holds a prime? And as soon as you open a hose it bleeds off. that sounds right, it should. If I'm wrong help me.

Ã‚Â

Let me be a little more clear.

I turn the pump on and no fuel pressure. I crack a hose end to blead the air out, and fuel starts flowing and I have good pressure as long as the pump stay on.

OK... now...

I turn the pump off, and let the system set for a minute or so, then turn the pump back on, and nothing... no fuel pessure. I have to re-blead the system to get fuel to flow.

A dog doesn't care if you're rich or poor, educated or illiterate, clever or dull. Give him your heart and he will give you his.

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stingray

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Posted: Sep. 19 2005,5:15 pm

Post # 14

was your "T" for both tanks below the top of your tanks? That could be part of the problem. :confused

you mentioned before you thought it may have been to high? I've never done one from scratch, always just replaced what I had :stupid

maybe unbolt it all and lay it low in the boat to see.

Edited by stingray on Sep. 19 2005,5:16 pm

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Sleek-Jet

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Posted: Sep. 19 2005,6:42 pm

Post # 15

Quote (stingray @ Sep. 19 2005,5:15 pm)

was your "T" for both tanks below the top of your tanks? That could be part of the problem. :confused

you mentioned before you thought it may have been to high? I've never done one from scratch, always just replaced what I had :stupid

maybe unbolt it all and lay it low in the boat to see.

It was aprox. the same height... The T was pretty much just hanging by the fuel lines. The Valve is pretty much the same height as the top of the tanks, which after messing around with it this afternoon, is to high.

What I would like to find is a couple check valves, something along the lines of a Bassett T-valve for headers (except just an in/out fitting instead of a "T"), but as far as I can tell, no one make one. I could put those at the tanks, and keep the fuel from siphoning back. Otherwise I think I'm going to have to remount everything lower in the boat.

A dog doesn't care if you're rich or poor, educated or illiterate, clever or dull. Give him your heart and he will give you his.

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MrCord

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Posted: Sep. 19 2005,7:31 pm

Post # 16

www.mcmastercarr.com

This is the best place for any little thing you want! ANY THING... I use it all the time for work..

I think page 386 is check valves but there are like 100 of them so I hope this helps!!!

Good Luck..

P.S. If not I have a bunch of 1/2" OD Hydraulic system valves in my office if you want them...

Never Trust Anyone That Talks Too Fast.... They are hoping you miss something!

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Sleek-Jet

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Posted: Sep. 19 2005,7:36 pm

Post # 17

LOL...That was my next stop.... Gotta love that big yellow catalog.

I've bought quite a bit of stuff from them over the years, if they don't have it, you don't need it.

A dog doesn't care if you're rich or poor, educated or illiterate, clever or dull. Give him your heart and he will give you his.

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weldwade

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Posted: Sep. 19 2005,7:37 pm

Post # 18

Aaron, I'll look around tonight and see if I can find some check valves. I think I've seen some that might work.

Keep your GUNS!

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Hotrodvw

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Posted: Sep. 19 2005,11:29 pm

Post # 19

Are the tanks sufficiently vented????? I would be tempted to put a 1/2 cracking pressure check at each tank, and see if that helps. If you can't get ahold of them, I sell them at work. FxF 1/4npt, MxF 1/4npt, FxF 3/8, 1/2npt, etc.......all brass with ss internals. Sounds to me like you have air in the lines maybe. Are the tank outlets right at the bottom of the tanks? How much of a rise is there to the valve? I carry a full line of brass adapters and fittings, hose, etc.... at work if you need anything. Eric

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weldwade

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Posted: Sep. 20 2005,8:18 am

Post # 20

Aaron no luck with the fittings at work, the closest thing I could get was a 1/2" but it takes 15 PSI to open it.. Had another thought, might be able to use some clear tubing that way you could see where the air is leaking in from. I can get that for you in 3/8". What do the pickups look like are they hard lined out of the tank or hose/plastic, top of the tank or out the back? I can weld some bungs in them if you need it.

Keep your GUNS!

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stingray

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Posted: Sep. 21 2005,4:14 pm

Post # 21

this may be a stretch, but the tank that would not draw may have a hole or leak in the pickup and be bleeding off or allowing air in and not holding the prime. just a thought? :stupid

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Sleek-Jet

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Posted: Sep. 22 2005,10:56 am

Post # 22

Quote (stingray @ Sep. 21 2005,4:14 pm)

this may be a stretch, but the tank that would not draw may have a hole or leak in the pickup and be bleeding off or allowing air in and not holding the prime. just a thought? :stupid

I thought that to, but if I hook the tank directly to the pump, it doesn't lose it's prime. :beat

A dog doesn't care if you're rich or poor, educated or illiterate, clever or dull. Give him your heart and he will give you his.

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MrCord

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Posted: Sep. 22 2005,11:03 am

Post # 23

Im thinking you might just want to trash all of your hose and fittings and just start over... Ã‚Â It might be quicker and less stressful Ã‚Â :confused

Ã‚Â

With wiring in my old car... I would chase problems around and around and swear that I had it all hooked up right :break

, finally I just ripped it all out and started over again( I know its not wiring its plumbing butit applies all the same)

Good Luck :beer

Edited by MrCord on Sep. 22 2005,11:04 am

Never Trust Anyone That Talks Too Fast.... They are hoping you miss something!

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Sleek-Jet

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Posted: Sep. 22 2005,11:41 am

Post # 24

Quote (MrCord @ Sep. 22 2005,11:03 am)

Im thinking you might just want to trash all of your hose and fittings and just start over... Ã‚Â It might be quicker and less stressful Ã‚Â :confused

Ã‚Â

With wiring in my old car... I would chase problems around and around and swear that I had it all hooked up right :break

, finally I just ripped it all out and started over again( I know its not wiring its plumbing butit applies all the same)

Good Luck :beer

What fun would that be????

A dog doesn't care if you're rich or poor, educated or illiterate, clever or dull. Give him your heart and he will give you his.

| Member # 81 | Joined: 2-07-2003 |

weldwade

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Posted: Sep. 22 2005,7:47 pm

Post # 25

Quote (Sleek-Jet @ Sep. 22 2005,10:56 am)

Quote (stingray @ Sep. 21 2005,4:14 pm)

this may be a stretch, but the tank that would not draw may have a hole or leak in the pickup and be bleeding off or allowing air in and not holding the prime. just a thought? :stupid

I thought that to, but if I hook the tank directly to the pump, it doesn't lose it's prime. Ã‚Â :beat

Aaron do you have the T fitting sucking off both tanks or just one side at a time? It wont loose prime bypassing the T and filter or just the filter? I have a vacuum pump if you want to use it to check each part... :guns

Keep your GUNS!

| Member # 1517 | Joined: 6-19-2005 |

53 replies since Sep. 18 2005,8:57 am

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