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Thread: Heater Y pipe
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03-31-2012, 10:26 PM #1
Heater Y pipe
I saw that a heater Y pipe helps to keep the heater temp up while idling. I have a factory installed heater but it cools off quickly while idling.
Where does the Y pipe get installed and what does it connect to?
Thanks!2018 Max with a little extra weight here and there
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04-01-2012, 06:41 AM #2
I believe it's between the raw water intake and the impeller housing.
Couple pics in here. I never installed mine because it was too hard to get to at the time.
https://forum.moomba.com/showthread....Heater+installLast edited by jmvotto; 04-01-2012 at 06:47 AM.
A Day at the Lake...Priceless
A Day in Powder...Endless
Joe V
2012 Möbius XLV~ Loaded & Exiled
2007 Outback V ~ sold
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04-01-2012, 06:59 PM #3
I found it easiest to remove the water pick up hose between the vdrive and the impeller and install the wye outside the boat then slide it back in. I got a lsv and it was tight to install, skinned the knuckles then decided to pull the hose.
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04-01-2012, 09:05 PM #4
I think I just figured out how it works.
Am I correct that the Y on the intake line acts as the suction to pull the heat through the heater core? The hot water is still coming from the block.
I was thinking backwards earlier and wondering how the cold sea water would hear anything.
Thanks for the insight.2018 Max with a little extra weight here and there
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04-01-2012, 09:15 PM #5