Controlling overboard header water

**N2GLOCK** · 04-24-2012, 12:40 PM

Is it absolutely necessary to mount the valve that controls overboard header water at the back of the boat? Or can the valve be mounted off the outlet housing on the top of the intake? I'm thinking that it would be easier to control with the valve located on the top of the intake versus having to make the adjustments at the back of the boat.

**Performance Jet** · 04-24-2012, 12:57 PM

I would lose the valve or keep it open. You can get into all kinds of trouble with this set up. I can explain if you want, shoot me a PM or call. Jim

**Widetrack** · 04-24-2012, 02:14 PM

I have always ran a valve off the intake! Easy access to fine tune! This is a setup that I am running on a cruiser boat!
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**Mash on It** · 04-24-2012, 02:40 PM

I run stainless braided line from the pump to the drivers seat (valve) then to the headers. Usually its "set it and forget it"
Only other (gate) valve is at the pump for temp control. Been running it this way for several years.

Daniel
Mash on it

**Ol Blue** · 04-24-2012, 04:23 PM

Have run it that same way Widetrack has it. Allows you to adjust for back pressure for the headers.

**N2GLOCK** · 04-24-2012, 04:29 PM

Originally Posted by Ol Blue

Have run it that same way Widetrack has it. Allows you to adjust for back pressure for the headers.

I shoulda been more specific. I want to be able to control the back pressure from the top of the intake rather than @ the back of the boat. I'm assuming this is okay to do then?

**cordog009** · 04-24-2012, 04:57 PM

I only control flow at the back of the boat, water leaving the thermostat housing should be unrestricted if I remember right. One to a Bassett T valve and an unrestricted dump line.

*edit* I have dry headers.

**Widetrack** · 04-25-2012, 05:45 AM

Originally Posted by cordog009

I only control flow at the back of the boat, water leaving the thermostat housing should be unrestricted if I remember right. One to a Bassett T valve and an unrestricted dump line.

*edit* I have dry headers.

Cory, If you run dry headers whats the need for a Bassett Tee valve?

**Ol Blue** · 04-25-2012, 08:27 AM

Originally Posted by N2GLOCK

I shoulda been more specific. I want to be able to control the back pressure from the top of the intake rather than @ the back of the boat. I'm assuming this is okay to do then?

Yes, will operate the same as back by the transom, IMO.

**jetboatperformance** · 04-25-2012, 11:59 AM

Nuther vote for inline header water "Valving", we use lever ball (or equivelant) valves before the T valve as well as in the OB dump line , valving gives very solid control over water flow, Tom

**N2GLOCK** · 04-25-2012, 12:21 PM

Originally Posted by jetboatperformance

Nuther vote for inline header water "Valving", we use lever ball (or equivelant) valves before the T valve as well as in the OB dump line , valving gives very solid control over water flow, Tom

Good to hear from you Tom! Would you happen to have a picture of one of those lever ball valves before the T?

**jetboatperformance** · 04-25-2012, 02:27 PM

Originally Posted by N2GLOCK

Good to hear from you Tom! Would you happen to have a picture of one of those lever ball valves before the T?

Thanks Eddie , its descreet little ball valve from Mcmaster works well

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Controlling overboard header water

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