Flushing the heater core?
#2
the hose on the heater core that is closest to the pass. side is the outlet. the other is inlet. remove hoses from heater core and attach a spare 3 foot section of 3/4 inch hose to the inlet side and run it down to a catch pan. hook up a garden hose to outlet side and turn water on slowly at first. this will back flush the heater core. you can still use the 160 stat. it will just take a little longer to warm up.
#4
I didn't use any extra tubing, that would be optional. I took both hoses off and flushed water in the inlet side and then in the outlet side. You'll see that the water that was in the heater core is a little dirty looking. More than likely, this will help your heating problem. It helped mine.
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ducttape1975
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07-10-2015 06:29 PM