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Heater core bypass for 73 JavAMX? |
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WWI Flying Ace 
AMC Nut 
Joined: Nov/16/2008 Location: Maryland Status: Offline Points: 408 |
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 Topic: Heater core bypass for 73 JavAMX?Posted: Mar/22/2019 at 10:49am |
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Hi guys-
Long time no type...hope everyone is well! Does anyone have a "how to" to bypass the heater core on a 73 Javelin AMX? It has a 401. I paid to have the heater core replaced a few years ago, but last time I started it, LOTS of antifreeze in the passenger floorboard. So, its bad again and I don't want the hassle of dash removal, etc., to get a new heater core installed. |
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Bill Mitchell
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Joined: Jul/12/2011 Location: St Matthews, SC Status: Offline Points: 346 |
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Posted: Mar/22/2019 at 11:30am |
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Quick fix. Disconnect the heater hose that runs from the engine to the firewall at the firewall. Plug the hose with an old condenser and hose clamp and that should stop the flow of antifreeze to the heater......Bill
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Bill Mitchell
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Phitown Hustler
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Joined: Mar/14/2019 Location: Philly Status: Offline Points: 124 |
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Posted: Mar/22/2019 at 11:38am |
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Run the hose from the back of the intake manifold to the outlet hose of the water pump. They are different sized but any parts store has a coupler with hose clamps
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WWI Flying Ace
AMC Nut
Joined: Nov/16/2008 Location: Maryland Status: Offline Points: 408 |
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Posted: Mar/22/2019 at 1:29pm |
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Thanks guys!
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1973 Javelin AMX
2007 Jeep Commander "Be kind, for everyone you meet is fighting a great battle." -Plato |
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PHAT69AMX
AMC Addicted
Joined: Jul/07/2007 Location: West Virginia Status: Offline Points: 5919 |
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Posted: Mar/22/2019 at 2:20pm |
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Agree, ? 5/8" to 3/4" ? Hose Reducer Coupling & Clamps, attach Manifold / Heater Valve to Water Pump.
Not sure if I would use a PLASTIC Hardware Store Coupling, brass might be better.
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