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  #21  
Old 02-18-2017, 08:49 PM
CraftyMaster CraftyMaster is offline
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No, not HPS, I'll try them !
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  #22  
Old 02-20-2017, 02:01 AM
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2010Prostar197 2010Prostar197 is offline
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Does anyone have a diagram of the water flow in the thermostat housing unit?

I'm making an assumption that the new way things are plumbed the water flow starts instantly to the exhaust manifold rather than waiting for the thermostat to open?
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  #23  
Old 02-20-2017, 02:48 PM
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BrianS BrianS is offline
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Is this something that should be done to prevent future issues or only if you are having problems? I have an '08 MCX with no overheat issues that is plumbed the old way, wondering if I should add this to my todo list?
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  #24  
Old 02-20-2017, 09:29 PM
MC197indy MC197indy is offline
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Quote:
Originally Posted by BrianS View Post
Is this something that should be done to prevent future issues or only if you are having problems? I have an '08 MCX with no overheat issues that is plumbed the old way, wondering if I should add this to my todo list?
Definitively a good safety measure to take. Check both of your wet exhaust pipes coming off of the stainless steal dumps, give them a few squeezes up an down the pipe. they should be some what soft. If feels hard to squeeze or has hard spots its most likely burn on inside from over heating and incorrect water flow to the exhaust.

As mentioned in earlier post, Indmar will tell you to install the re-plump if you have not already done this. 2013 and up all engines from them are factory installed with the re-plump kit.
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  #25  
Old 07-25-2017, 04:42 PM
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crazyjd crazyjd is offline
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I've got a '07 MasterCraft x30 that I've had the nylon elbow hose connectors melt on like 3 times this summer. It is a VDrive do I only need two of the molded U hoses?
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  #26  
Old 07-27-2017, 03:04 AM
MC197indy MC197indy is offline
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Originally Posted by crazyjd View Post
I've got a '07 MasterCraft x30 that I've had the nylon elbow hose connectors melt on like 3 times this summer. It is a VDrive do I only need two of the molded U hoses?
you will most likely need some extra heater hose too. Do some measuring to figure out if or how much you will need, I would add a foot or two just for safety.

I needed about 12 ft for mine.
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  #27  
Old 08-13-2017, 09:44 AM
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crazyjd crazyjd is offline
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Indmar ETX Cat Re-plump kit

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Originally Posted by MC197indy View Post
you will most likely need some extra heater hose too. Do some measuring to figure out if or how much you will need, I would add a foot or two just for safety.

I needed about 12 ft for mine.


Finally installed the new hoses. The manifolds are cool enough to leave your hand on them after surfing. I don't think my nylon elbows are ever going to melt again! I am going to send the Indmar kit back and get a refund.

I wish I would of got all blue silicon hoses instead of buying the kit. I ended up using my existing hoses that have the 90 degree bend in them to connect the top of the manifold to the dumps. Then for the two 13" hoses I got cut at NAPA for 6 dollars.

I feel like they should offer up this kit for free if you fill out a form verifying your ownership make and model etc.

Then they should have two options. One for a direct drive and one for a v drive.

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Last edited by crazyjd; 08-13-2017 at 10:01 AM.
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  #28  
Old 08-13-2017, 12:55 PM
MC197indy MC197indy is offline
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Nice Job!

Amazing, the temp difference of the extcats with the replumb.

You would think indmar would be more proactive to this.
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  #29  
Old 10-02-2017, 07:16 PM
J-train J-train is offline
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I would just like to say thank you for all the amazing pictures and details on this thread!! I vapor locked the MCX motor twice after surfing so had to try this. I did the replumb using everyone's advice and man what a difference!
2007 X2
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  #30  
Old 04-17-2018, 07:11 PM
jackpita jackpita is offline
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Replaced manifolds and did the re-plumb kit on my 08 X14dd. Manifolds changed because of excessive corrosion on a couple of female threads for the 90 degree elbows. Had run the boat in salt for a couple of years (don't say anything, that is where the water was). Also changed the thermostat housing. bakes online re-plumb kit worked fine. Amazing difference in temp. Took ~30 mins to get hot enough to open the new thermostat at 160. Runs really cool. Thanks to all for this thread. Made the job very easy. You guys rock.
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