Author Topic: water lines towetheaders  (Read 906 times)

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Offline angryhillracing

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water lines towetheaders
« on: June 17, 2011, 12:21:18 PM »
I am restoring a 1969 sidewinder. I need help routing the cooling and wet header lines. Headers have three water inlets each.  Thermostat housing has 4 ports, I would love some help on this if anyone can help. thanks.    this is a very cool site an I will get some pics up soon.

Offline wolfie

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Re: water lines towetheaders
« Reply #1 on: June 17, 2011, 01:04:41 PM »
Here you go. Hopefully this answers your questions.

http://www.vintagejetboats.com/forum/index.php?topic=690.0

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Offline H20MOFO

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Re: water lines towetheaders
« Reply #2 on: June 17, 2011, 01:05:59 PM »
I am restoring a 1969 sidewinder. I need help routing the cooling and wet header lines. Headers have three water inlets each.  Thermostat housing has 4 ports, I would love some help on this if anyone can help. thanks.    this is a very cool site an I will get some pics up soon.
I am not sure how much help I am gonna be....been a looooon time since I had log style exaust(sounds like thats what your describing) and it was on a k boat with no thermostat. Off memory(lotsa brain cells gone since then but the strong ones are still left lol) the 2 in  the front of the log is your in and out(waterjacketed exaust) I ran my water through there 1st to preheat.....then through the motor....after the motor it went back to the log at the snails to dump over board.  Not much of a t stat fan here...off memory there....the bottom 2 are inlets to the motor....one top port is your bypass(when t stat is shut)   the other one is a dump line. I could probably wrap my head around it better if I were the lookin at it. Not sure if all that bla bla bla is any help or not.lol :sign0068: Personally I would worry that while that t state is dropped shut....the logs would be runnin dry....and you bay burn a rubber hose and have quite the leak. Like I say though....my log and t stat pluming is rusty at best.

Offline H20MOFO

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Re: water lines towetheaders
« Reply #3 on: June 17, 2011, 01:06:44 PM »
Here you go. Hopefully this answers your questions.

http://www.vintagejetboats.com/forum/index.php?topic=690.0
Hey...I am pretty sure that is cheating. :cheers:

Offline wolfie

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Re: water lines towetheaders
« Reply #4 on: June 17, 2011, 01:08:53 PM »
Here you go. Hopefully this answers your questions.

http://www.vintagejetboats.com/forum/index.php?topic=690.0
Hey...I am pretty sure that is cheating. :cheers:

One thing my pop's always told me was "work smarter, not harder"!  :biggrin:
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Offline 78_Tahiti

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Re: water lines towetheaders
« Reply #5 on: June 17, 2011, 01:09:52 PM »
sure thing, and Welcome to the site! 


In a nutshell, water from the pump goes to a "T", then a line goes to each exhaust manifold (in) then from each exhaust mainfold (out) to a "T" on each side of the timing cover of the engine, the upper connection of these "T's" connect to the top of the 4 port thermostat housing (bypass) the  2 bottom ports of the thermostat housing (out) goes to the exhaust risers (exits) to help keep the exhaust tips kool!
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Offline wolfie

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Re: water lines towetheaders
« Reply #6 on: June 17, 2011, 01:15:13 PM »
Here's another way of routing your plumbing if you don't have that style thermostat housing.



The lines going into the bottom fittings of the logs come from the T running to the jet. The lines going from the T-Stat housing go to the risers on the logs.
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Offline 78_Tahiti

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Re: water lines towetheaders
« Reply #7 on: June 17, 2011, 01:23:33 PM »
One other routing used by some, that have a borderline high compression engine, run the water straight from the pump through the block, then the exhaust manifolds, and lastly the risers.
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Offline angryhillracing

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Re: water lines towetheaders
« Reply #8 on: June 17, 2011, 01:38:13 PM »
WOW Im impressed. you guys helped me alot. and fast too. This should help me get this boat on the water by next weekend. I will take some pics of it on the water and post them here. Thanks again. anyone in Arizona?

Offline 78_Tahiti

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Re: water lines towetheaders
« Reply #9 on: June 17, 2011, 01:55:27 PM »
We have a few members in Arizona! Some up North by Havasu, a couple in the Phoenix area, and a few strewn about the Desert! Just post up in the "By Region" section. And post up a place or time! heres a link! http://www.vintagejetboats.com/forum/index.php?board=108.0   :happy2:
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