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eric lavine
Grand Poobah Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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Posted: December-14-2009 at 2:26pm |
on top of the thermostat housing which has 3 hoses going to the manifold, you DO NOT have to wait for the thermostat to open to winterize, the hose that goes from the raw water pump up to the housing will by-pass the thermostat and fill the block. and also up in that same housing there is a by-pass to dump water to the exhaust. once the thermostat opens more water will exit to the exhaust
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"the things you own will start to own you"
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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Old news Eric!
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M3Fan
Grand Poobah Joined: October-22-2005 Location: United States Status: Offline Points: 3185 |
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Yeah, I've been playing this drum for years now.
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2000 SN GT40 w/99 Graphics/Gel
2016 SN 200 OB 5.3L DI https://forum.fifteenoff.com |
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Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7952 |
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Isn't that 3rd hole for the water from the raw water pump to be able to bypass the block and go straight to the exhaust manifolds when the thermostat is closed?
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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When the block is full of circulating cold water, the water coming in from the RWP gets pushed up out that 3rd hole, over the thermostat, and out the exhaust.
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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When the block is empty, the engine will fill with water first as it is directed down towards the circulation pump. Once hot, the thermostat will open and water exiting the block will be allowed to go through the thermostat and out the exhaust instead of back around to the circulation pump.
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Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7952 |
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Precisely. That is why you have to drain the water out of the block. Nice drawing Hollywood. How did you do that?
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storm34
Grand Poobah Joined: November-03-2008 Location: Dexter Iowa Status: Offline Points: 4492 |
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But your boat will overheat and flood with water if you don't have your impeller hoses connected!
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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MS Paint. Where exactly the streams of water mix isn't probably very accurate, and hard to draw but I hope everyone gets the point.
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eric lavine
Grand Poobah Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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if its old news, why are we explaining it again?
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"the things you own will start to own you"
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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i'm explaining it for you
how about them browns |
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lonestar
Senior Member Joined: August-17-2008 Location: Lafayette N.J. Status: Offline Points: 290 |
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Could you guys point out in one of the pictures where the T-stat is ?
I cant believe im asking the question in public but im not sure where to look. |
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lonestar
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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The thermostat is the brown disc/ring drawn in, and is removed in the 2 pictures above it. It goes right in between the 2 halves that are separated.
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eric lavine
Grand Poobah Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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I guess a couple of your pupils didnt make it in that day, and I see you used your sharp Crayons too lol
Hollywood you know information flows redundently here and still gets missed I know they beat up the Steelers last Thursday |
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"the things you own will start to own you"
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Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7952 |
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Who's the OP? |
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eric lavine
Grand Poobah Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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OP, other person? HW, he went through all the trouble again to explain the cooling system on a PCM, since it was old news....but again so is winterizing
i wasnt 100% so i confirmed it for myself, I wasnt sure of the cooling routing on the PCM, but i am familier with the Mercs |
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"the things you own will start to own you"
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Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7952 |
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Original poster. The drawings and photos show why water can get trapped in the block and for those unbelievers who think that draining isn't neccesary. Also, shows how pouring anti freeze down that raw water pump hose to the thermos housing will pickel the whole engine. Much better system than on an Indmar.
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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I took the opportunity to razz Eric since I blew him off at Rico's last week. Hopefully those pictures help save a few PCMs.
long live foam |
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Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7952 |
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The future of CCF will be hull restorations of all composite/fiberglass boats due to water absorbed/trapped foam. |
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