Plumbing - hose size
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Plumbing - hose size

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    Member TV334's Avatar
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    Default Plumbing - hose size

    Alright guys i've got my hard line coming off of my pump to a bypass regulator then to 10AN hose to the front of my block. Then I have 8AN to the bassett t check and 8AN to the gate valve and overboard dump. Boat runs about 140-150 max, when I run the headers dry with the dump valve all the way open I still see some steam come from the exhaust. Is this because of the volume of the 10AN going down to the 8AN?

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    Quote Originally Posted by TV334 View Post
    Alright guys i've got my hard line coming off of my pump to a bypass regulator then to 10AN hose to the front of my block. Then I have 8AN to the bassett t check and 8AN to the gate valve and overboard dump. Boat runs about 140-150 max, when I run the headers dry with the dump valve all the way open I still see some steam come from the exhaust. Is this because of the volume of the 10AN going down to the 8AN?
    TV-

    Been going back and forth with my set up, Check out my thread posted on plumbing: http://www.performanceboats.com/jet-...-plumbing.html
    Still working it out but hope it helps.

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    The Man cordog009's Avatar
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    Sounds like your Bassett T isn't sealing all the way up. Throw a ball valve or gate valve between your t-stat outlet to shut off the water supply when you want to run them dry. Plus it doesn't take much water pressure to open the Bassett valve up.

    The -10 isn't going to allow any more water to flow than the hard line it's attached to. That 5/8" hose is probably a good bit bigger than the pipe it's attached to. I've always ran -8 (1/2") hose to the engine, but bigger isn't going to hurt anything.
    Last edited by cordog009; 01-25-2011 at 08:49 PM.


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    Senior Member steadymobbin's Avatar
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    from what i have herd the basset T is crap. use a ball valve

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    Glendale Arizona Squirtcha?'s Avatar
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    Quote Originally Posted by steadymobbin View Post
    from what i have herd the basset T is crap. use a ball valve
    I've had the same Bassett T valve on two different motors, in two different boats over the past 12 years and it works fine. The only problems I've ever had is when you get a twig or piece of grass caught in it which holds the ball off the seat and allows water to the headers all the time. It's only happened to me a handful of times and I can tell by the exhaust pitch and the presence of water in the headers at idle that I need to clean it out.

    Other than that I think they work fine.

  8. #6
    Senior Member Widetrack's Avatar
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    Just a small trick to do is on the header water lines! Add a restrictor in the line where they connect to the hose! Most of the time there is a brass fitting that I tap with a 7/16" tap and take a bolt and screw into the fitting! (set screw or bolt with head cut off) Drill about a .090 hole through the bolt lenghtways so as to make a jet. This helps reduce the amount of water going to the small lines into the headers!
    I also run an RPM switch to a solinoid valve that doesn't let the water to the tee valve till 2000 RPM! This works great and I don't have to worry about revirsion problems! FWIW! WT


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    Living in a cage of fear thatguy's Avatar
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    FWIW, I have a 4 position selector valve at the driver seat before the T valve.
    My Bassett T does not stop the water 100%.
    When I am under way, I open the selector to position 1 or 2, then close it when I idle down, and I always run it for a minute or so with the manual selector shut before turning the engine off.
    Tommy
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    Glendale Arizona Squirtcha?'s Avatar
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    Definitely a number of ways to do it. I'm not disciplined enough to use thatguy's system. I'd forget.

    I like the idea of an RPM switch, but contrary to post above (and my point was) that the Bassett T has always worked fine for me and it's a no brainer (which I need). It's not a piece of junk IMO
    Last edited by Squirtcha?; 01-26-2011 at 11:25 AM.

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    Senior Member Widetrack's Avatar
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    X2 Dan! I had one of those valves and I would forget to turn on or turn off!

    Also another thing to ask is do you have a valve on the dump line? I know you said you have a bypass! But if you do that is where a problem can start you close it down to increase temp and it applies the pressure to the tee valve causing it to open when idling! Not a good thing at all ask me how I know! WT


    SOMEONE SAID YOU CAN'T TAKE IT WITH YOU! SO,IM BURNING IT UP ONE GALLON AT A TIME!
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    Living in a cage of fear thatguy's Avatar
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    I do forget to turn it off sometimes.
    That is why I have the T valve after the manual still. It is like a fail safe to a point!

    I do not restrict the water in or out, and have a PSI by pass set around 15# on the intake side.
    Thinking of changing it around a little bit to build more heat though..
    Tommy
    Quote Originally Posted by Rexone View Post
    Tommy please remove all Jimsplace quotes from your sig and don't put more back. He doesn't like it and it is against the rules. Thank you.
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    Many names, but always me."

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    Senior Member H20MOFO's Avatar
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    Quote Originally Posted by TV334 View Post
    Alright guys i've got my hard line coming off of my pump to a bypass regulator then to 10AN hose to the front of my block. Then I have 8AN to the bassett t check and 8AN to the gate valve and overboard dump. Boat runs about 140-150 max, when I run the headers dry with the dump valve all the way open I still see some steam come from the exhaust. Is this because of the volume of the 10AN going down to the 8AN?
    I think it goes without saying that you should take a peek inside the t valve....you may find someone took the guts out of it. Mine would get the headers wet a wee bit earlier than I cared for...so I just stretched the spring a little and threw a couple of stainless washers in there to provide a little more resistance....so far so good.
    Another Hot Boat refugee

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    Default Thanks guys

    Thanks for all of your help guys. Yes i do have a valve on the dump line and it was all the way open so there should have been no restriction so i'm thinkin there is something screwy with the bassett T. I'll check it out thanks alot guys.

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    Glendale Arizona Squirtcha?'s Avatar
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    Quote Originally Posted by TV334 View Post
    Alright guys i've got my hard line coming off of my pump to a bypass regulator then to 10AN hose to the front of my block. Then I have 8AN to the bassett t check and 8AN to the gate valve and overboard dump. Boat runs about 140-150 max, when I run the headers dry with the dump valve all the way open I still see some steam come from the exhaust. Is this because of the volume of the 10AN going down to the 8AN?
    Looks like we got a little off track here.

    How much steam with the headers dry?

    What difference does it make if there's a little steam?

    What are you trying to do by running the headers dry? Do you just want to make more noise, or do you think there's a performance gain by running completely dry?

    I guess I don't really see what the problem is here.
    Last edited by Squirtcha?; 01-28-2011 at 07:02 AM.

  16. #14
    Member TV334's Avatar
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    Quote Originally Posted by Squirtcha? View Post
    Looks like we got a little off track here.

    How much steam with the headers dry?

    What difference does it make if there's a little steam?

    What are you trying to do by running the headers dry? Do you just want to make more noise, or do you think there's a performance gain by running completely dry?

    I guess I don't really see what the problem is here.
    I'd say only about 3-4 inches of steam. I really just want to be able to leave the valve open and know that its working the way it should, thats it. My headers are ceramic coated so it really doesn't matter either way. Just wondering if the difference in inlet and outlet hose size might drown my engine if something out of the ordinary happens.

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