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Muzzys AC hack.
- Thread starter malgen
- Start date
JimD007
Active Member
I'll be closing that valve soon. Mornings are still cool but not cool enough to really need heat.
The "secret" of finding the hose to install the valve is not at the water pump, it is at the firewall. You do not want to mess with the water flow from the water pump to the radiator or from the radiator to the engine. These are big lines. You want to find the little lines going through the firewall. The heater core lines are about 1 inch OD and the engine coolant hoses are 2 to 3 inches OD. The heater core lines have nothing to do with the engine cooling, they are the path for coolant to flow to the heater core. As has been said, putting a closed valve in either the heater core inlet or outlet will stop the flow. Which you put the valve in will make little difference.
If you are happy with your AC there is no good reason to do this but it will make the AC more effective in any vehicle to stop the flow of water at over 200 F through the air distribution box. Even with the heater core blocked off from air flow it will still heat up the area making the AC less effective. The drawbacks of installing it are it could leak or otherwise not function well (solution is replace it) and it is a manual operation to raise the hood and turn the valve to open or close it. If you close the valve too early in the spring you won't have heat or defrost you may need. But you can just pull over (safely) and open the valve.
The "secret" of finding the hose to install the valve is not at the water pump, it is at the firewall. You do not want to mess with the water flow from the water pump to the radiator or from the radiator to the engine. These are big lines. You want to find the little lines going through the firewall. The heater core lines are about 1 inch OD and the engine coolant hoses are 2 to 3 inches OD. The heater core lines have nothing to do with the engine cooling, they are the path for coolant to flow to the heater core. As has been said, putting a closed valve in either the heater core inlet or outlet will stop the flow. Which you put the valve in will make little difference.
If you are happy with your AC there is no good reason to do this but it will make the AC more effective in any vehicle to stop the flow of water at over 200 F through the air distribution box. Even with the heater core blocked off from air flow it will still heat up the area making the AC less effective. The drawbacks of installing it are it could leak or otherwise not function well (solution is replace it) and it is a manual operation to raise the hood and turn the valve to open or close it. If you close the valve too early in the spring you won't have heat or defrost you may need. But you can just pull over (safely) and open the valve.
1791
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just throwing this out there. you should cycle water through the heater core at least once a month in the summer and run the a/c in the winter from time to time. it lubricates the o rings normally the defrost runs the compressor so i guess that's not really necessary. the water sitting in the heater core not circulating is not good for it long-term.
