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Discussion Starter #1
I’m putting a CSR 905 elec. water pump on my early 289. I would like to keep my heater so the question is where can I plumb the heater hose? Also what about the by-pass hose? Do I eliminate the BP hose with different style thermostat housing?
 

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I got it figured out. I called CSR tech support. I was told to drill 3 3/16” holes in the thermostat and this will act like a bypass hose to keep from running the pump dry. The heater hose can be plumb on the bottom of the pump by removing the plug and use a 3/4” pipe thread to 5/8” barb adapter for the heater hose. Plug the heater hose outlet on the t-stat housing by tapping threads for a plug
 
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