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  1. #1
    New Member
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    Aug 2009
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    18

    Default Where to plumb for heater

    I want to install a heater core in my 5740. Can anyone tell me where to tap into the cooling system for this? Thanks

  2. #2
    Silver Member
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    Jun 2011
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    Manitoba, Canada / Minnesota, USA ( I straddle the border)
    Tractor
    '12 Kubota B2620, fel,mmm,bh,bb

    Default Re: Where to plumb for heater

    Dayco supplies many nice tap valves (on/off/in between). Tap into line from engine to rad (fluid prior to entering top of rad).

  3. #3
    Elite Member
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    Apr 2004
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    2,532
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    East Coast of Lake Huron
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    Deere, several

    Default Re: Where to plumb for heater

    Quote Originally Posted by boakley View Post
    Dayco supplies many nice tap valves (on/off/in between). Tap into line from engine to rad (fluid prior to entering top of rad).
    Wrong.

    To supply a heater core.High temp, high pressure coolant is sent to the heater and coolant returns to lowest pressure point of the cooling system .
    Tap in the supply in the engine side of the thermostat. Return heater core line to the water pump inlet.

  4. #4
    Silver Member
    Join Date
    Jun 2011
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    184
    Location
    Manitoba, Canada / Minnesota, USA ( I straddle the border)
    Tractor
    '12 Kubota B2620, fel,mmm,bh,bb

    Default Re: Where to plumb for heater

    Quote Originally Posted by buickanddeere View Post
    Wrong.

    To supply a heater core.High temp, high pressure coolant is sent to the heater and coolant returns to lowest pressure point of the cooling system .
    Tap in the supply in the engine side of the thermostat. Return heater core line to the water pump inlet.
    on a Montana engine side of t-stat??

  5. #5
    Elite Member
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    Apr 2004
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    East Coast of Lake Huron
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    Deere, several

    Default Re: Where to plumb for heater

    Engine side of stat on any liquid cooled engine.

  6. #6
    Platinum Member
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    Apr 2011
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    791
    Tractor
    New Holland Boomer 50

    Default Re: Where to plumb for heater

    ...except liquid cooled engines designed with reverse coolant flow.

  7. #7
    New Member
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    Aug 2009
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    18

    Default Re: Where to plumb for heater

    Does anyone have or know of any photos that show it on this particular engine?

  8. #8
    Elite Member
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    Apr 2004
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    East Coast of Lake Huron
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    Deere, several

    Default Re: Where to plumb for heater

    5740 what ?
    Can you find the thermostat housing?
    Is there a reputable shop nearby ?

  9. #9
    Elite Member
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    Default Re: Where to plumb for heater

    Quote Originally Posted by xtn View Post
    ...except liquid cooled engines designed with reverse coolant flow.
    Not a whole lot of those reverse cooled engines in standard mid priced production vehicles and equipment. It is a superior cooling system however. iirc Chev ran off a batch of performance reverse cooled V8's in the mid 90's ?

  10. #10
    Platinum Member
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    Apr 2011
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    791
    Tractor
    New Holland Boomer 50

    Default Re: Where to plumb for heater

    Quote Originally Posted by buickanddeere View Post
    Not a whole lot of those reverse cooled engines in standard mid priced production vehicles and equipment. It is a superior cooling system however. iirc Chev ran off a batch of performance reverse cooled V8's in the mid 90's ?
    I dunno. But they do exist. Hot-rodders do it sometimes. So "any liquid cooled engine" isn't entirely accurate.

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