Model Boat Mayhem

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Water cooling inlet pipe position?  (Read 3085 times)

Patrick Henry

  • Guest
Water cooling inlet pipe position?
« on: April 27, 2010, 04:04:20 pm »

Where's the best place to put the watercooling inlet pipe guys...it states in the destructions that it goes on the port side, but where? Between the prop and the rudder and offset to port? The rudder will be cut down some, by the way...



Ta...


Rich
Logged

Bill D203

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,959
  • not long now!!
  • Location: Sunny Stevenage
Re: Water cooling inlet pipe position?
« Reply #1 on: April 27, 2010, 06:46:11 pm »

Hi Rich
I put mine in between the prop and the rudder in line. However you don't seem to have alot of room. Have fun!!
Logged
Roll On Mayday. Im off for a pint.   How Much!!!   WHEN do you need it!     No dear!    Yes dear??   Wot Now???  soon to be EX Chairman SMBC

Patrick Henry

  • Guest
Re: Water cooling inlet pipe position?
« Reply #2 on: April 27, 2010, 07:12:31 pm »

Mine is now off to one side and angled slightly towards the propwash....fingers crossed Bill.
Logged

tobyker

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,311
  • Location: Scotland - West Coast
Re: Water cooling inlet pipe position?
« Reply #3 on: April 27, 2010, 08:23:57 pm »

The most elegant one I've ever seen was in a hollow skeg off which the rudder was hinged.
Logged

Patrick Henry

  • Guest
Re: Water cooling inlet pipe position?
« Reply #4 on: April 27, 2010, 08:26:00 pm »

I guess that would have been on a transom mounted rudder? Mine is a standard submerged set up....
Logged

BJ

  • Guest
Re: Water cooling inlet pipe position?
« Reply #5 on: April 27, 2010, 08:40:35 pm »

I guess that would have been on a transom mounted rudder? Mine is a standard submerged set up....
You could always use the pickup the the FSRV boats use see http://www.prestwich.ndirect.co.uk/hdwraccs.htm item GA1A virtually above your prop
Logged

pompebled

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 588
  • Location: Sneek, Netherlands
Re: Water cooling inlet pipe position?
« Reply #6 on: April 29, 2010, 07:18:16 pm »

Here's a variation on the theme:

A pressureless system; the inlet facing forward and the outlet facing towards the transom, creating sucktion.
Position the inlet where the propwash hits the bottom and the outlet away from the wash.

Keep the tubing inside the hull as low as possible and, once the tubes have filled, the flow will continue even at half throttle or less (but who would want that...).

Her's the lay-out inside the hull:


Regards, Jan.
Logged
Boaters are nice people

Patrick Henry

  • Guest
Re: Water cooling inlet pipe position?
« Reply #7 on: April 29, 2010, 07:33:56 pm »

That's a good idea Jan...I like that.

Cheers...
Logged

w3bby

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 773
  • Location: Helsingborg, Sweden
Re: Water cooling inlet pipe position?
« Reply #8 on: May 01, 2010, 03:35:01 pm »

I use a flush inlet as above but prefer to have the outlet on the side or deck so I can see that the cooling is working.

andyn

  • Guest
Re: Water cooling inlet pipe position?
« Reply #9 on: May 01, 2010, 03:58:08 pm »

Here's the setup I use on my multi, copper tube protrudes just below the bottom of the hull, note it isn't filed flat as it doesn't pick up as much water. The tube bends round inside the hull right the way up to the engine mount where a very short piece of silicon tube connects it to the engine, then on the other side it goes straight out the boat. Despite the fact the tube is only 3/32" inside diameter water absolutely p***** through it.


Logged

Patrick Henry

  • Guest
Re: Water cooling inlet pipe position?
« Reply #10 on: May 01, 2010, 05:35:36 pm »

Off topic slightly, but how's Mervyn..no, Martin..no, Mary.. no, that yellow submersible of yours Andy?
Logged

andyn

  • Guest
Re: Water cooling inlet pipe position?
« Reply #11 on: May 01, 2010, 07:04:27 pm »

Just waiting on some money to buy Melvin some new seals and a failsafe :-))
Logged

pompebled

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 588
  • Location: Sneek, Netherlands
Re: Water cooling inlet pipe position?
« Reply #12 on: May 05, 2010, 06:54:46 pm »

I use a flush inlet as above but prefer to have the outlet on the side or deck so I can see that the cooling is working.

Now that is a matter of faith; I knów his system works, so I don't need to see the outlet.

Next to that, the point was to have a pressureless cooling loop, that doesn't induce drag...

Regards, Jan.
Logged
Boaters are nice people
Pages: [1]   Go Up
 

Page created in 0.135 seconds with 22 queries.