water routing diagram or pic
+ Reply to Thread
Results 1 to 14 of 14

Thread:
water routing diagram or pic

  1. #1
    use a BBC to pull a BBC devanwon's Avatar
    Join Date
    May 2008
    Location
    portland oregon
    Posts
    337

    Question water routing diagram or pic

    anyone have a picture or diagram for one with logs?? mine has the nicson logs and I just blew my intake gasket (first time out) but want to make sure that its routed right, I am not running a stat, do you guys think I need to regulate flow to the engine with a ball valve or something?? any help is appreciated!!

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Member TrynPas's Avatar
    Join Date
    Apr 2008
    Location
    Litchfield Park, AZ
    Posts
    310

    Default

    There was a real good thread awhile back regarding plumbing.....except with headers. I've got the logs and I was told to put a ball valve (gas valve w/smaller handle) at the jet, this keeps you from pumping water into your boat if you spring a leak in a heater hose. Then 'T' it and go into both fittings where the water pump would be, then out the t-stat housing and into the logs.

  4. #3
    use a BBC to pull a BBC devanwon's Avatar
    Join Date
    May 2008
    Location
    portland oregon
    Posts
    337

    Default

    mine comes in from the pump then T'S and goes to the front of the logs and then from there another fitting on the front of the logs to the water pump cover and from the stat housing goes back to the bottom of the riser. let me know if this is right.

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    E-7 Sheepdog (ret) SmokinLowriderSS's Avatar
    Join Date
    Dec 2007
    Location
    Newton Ks.
    Posts
    6,834

    Default

    Quote Originally Posted by devanwon View Post
    mine comes in from the pump then T'S and goes to the front of the logs and then from there another fitting on the front of the logs to the water pump cover and from the stat housing goes back to the bottom of the riser. let me know if this is right.
    That is right.

    When I ran logs, that was the way they belonged.

    Cool the logs first (and pre-heat the engine water), then to the engine, then out to the outlest.
    "As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron."
    H.L. Mencken

    OBAMA: Some people deserve this.
    The rest of us are being dragged along kicking and screaming.

  7. #5
    Member TrynPas's Avatar
    Join Date
    Apr 2008
    Location
    Litchfield Park, AZ
    Posts
    310

    Default

    Quote Originally Posted by devanwon View Post
    mine comes in from the pump then T'S and goes to the front of the logs and then from there another fitting on the front of the logs to the water pump cover and from the stat housing goes back to the bottom of the riser. let me know if this is right.
    Crap!! you're right. I looked back at HJ's thread regarding plumbing and found what I was looking for. I remembered incorrectly. Sorry Devonwon, didn't mean to give you bad info. Here's the link with the diagram someone posted (post #160).
    http://www.performanceboats.com//sho...?t=6571&page=6

  8. #6
    Senior Member ol guy's Avatar
    Join Date
    Mar 2008
    Location
    Lake Elsinore Ca
    Posts
    3,818

    Default

    Quote Originally Posted by devanwon View Post
    mine comes in from the pump then T'S and goes to the front of the logs and then from there another fitting on the front of the logs to the water pump cover and from the stat housing goes back to the bottom of the riser. let me know if this is right.
    This THE WAY to plumb a jet with logs. Pre-heat the water then send to the motor. Motor runs warmer and the motor runs at a temp that is more motor friendly. That is how I plumbed mine and very happy with the set-up. Never seen over 195 or under 160 at cruise or WOT. M

  9. #7
    Member TrynPas's Avatar
    Join Date
    Apr 2008
    Location
    Litchfield Park, AZ
    Posts
    310

    Default

    The timing on this thread is pretty good, I'm about to finalize some stuff before I start my motor this week so I can change my mistake easily. Just curious though.....does it really matter which direction you run the water through the motor? I think my hoses would look better running into the t-stat and out of the water pump plate.

  10. #8
    Cas
    Cas is offline
    Angry American Cas's Avatar
    Join Date
    Jan 2008
    Location
    NorCal
    Posts
    3,103

    Default

    check in the jet boat section here-
    http://classichotrodboats.com/
    I put up a few different diagrams for different applications.

  11. #9
    Sit N' Spin Jetaholic's Avatar
    Join Date
    Dec 2007
    Location
    Droppin' the kids off at the pool
    Posts
    1,423

    Default

    What works really well on my setup is the relief valve with the thermostat kit.

    It uses the Hardin Marine thermostat kit and a pressure relief valve set to open at 12 PSI. You can get the valve at McMaster Carr for about $50. Their part number for it is 9763K12 and their website is http://www.mcmaster.com

    On my setup I run the water full on unrestricted from the pump. The relief valve keeps it from overpressurizing the motor and running the water full on gives you full water volume to completely fill the block, ensuring a constant running temp rather than idling at 180 and shock cooling it when you get on the throttle. The thermostat allows the engine to get up to about 140* with a 160* thermostat.

    After about 35 hours I have no water in the oil and a constant running temp of 140*. No shock cooling whatsoever.

    Now I run OT Bassetts but I'm thinking it should work just as well with logs. Here's the diagram shown with logs. The ball valve off the pump is fully on all the time and is there as an emergency shutoff.

    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	coolinglogs.JPG 
Views:	6697 
Size:	45.2 KB 
ID:	10925  
    Last edited by Jetaholic; 06-14-2008 at 09:39 PM.

  12. #10
    Junior Member
    Join Date
    Apr 2008
    Posts
    17

    Default

    Quote Originally Posted by TrynPas View Post
    .....does it really matter which direction you run the water through the motor? I think my hoses would look better running into the t-stat and out of the water pump plate.
    Yes it does.
    It would be like trying to fill a beer can up with a hole in the bottom. It wouldn't stay full of water all the time and would have could have hot spots. There was a thread earlier about changing the direction of flow and the general opinion was Engine builders put a lot of research into water flow and disinged engine flow to go in at the waterpump and out the t housing also if you changed direction (water in at the T housing) if you run a thermostat it wouldn't regulate your engine temp cause it would be reacting to the incoming water temp.

  13. #11
    Banned
    Join Date
    Jan 2008
    Location
    El Cajon, CA.
    Posts
    3,605

    Default

    Here you go...

    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	index.jpg 
Views:	4615 
Size:	49.1 KB 
ID:	10971  

  14. #12
    Member TrynPas's Avatar
    Join Date
    Apr 2008
    Location
    Litchfield Park, AZ
    Posts
    310

    Default

    Quote Originally Posted by dirtmeister2002 View Post
    Yes it does.
    It would be like trying to fill a beer can up with a hole in the bottom. It wouldn't stay full of water all the time and would have could have hot spots. There was a thread earlier about changing the direction of flow and the general opinion was Engine builders put a lot of research into water flow and disinged engine flow to go in at the waterpump and out the t housing also if you changed direction (water in at the T housing) if you run a thermostat it wouldn't regulate your engine temp cause it would be reacting to the incoming water temp.
    That makes perfect sense. Thanks.

  15. #13
    Banned
    Join Date
    Jan 2008
    Location
    El Cajon, CA.
    Posts
    3,605

    Default

    Quote Originally Posted by devanwon View Post
    ... I just blew my intake gasket (first time out)...
    I know you have a 455 Olds, if you are running a aftermarket aluminum intake manifold you need to run a special intake manifold gasket set for that application (Felpro make sit). The stock intakes use a valley pan which you are not going to want to run with an aftermarket intake. So far I've seen 4 blown Olds 455's in boats that I parted out because of incorrect intake manifold installation (using silicone only or silicone and gasket on the intake manifold). Use the correct gasket (assuming you have a aftermarket intake) and you won't have any problems.

  16. #14
    Banned
    Join Date
    Jan 2008
    Location
    El Cajon, CA.
    Posts
    3,605

    Default

    Quote Originally Posted by devanwon View Post
    ... do you guys think I need to regulate flow to the engine with a ball valve or something??...
    You need to have a valve (ball or gate will work) between the pump and the engine. Start off with the valve about 1/3 open and adjust the valve to get the engine temp where you want it.

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in


Tags for this Thread

Digg This Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95