is this temperature too high?
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81 300sd, just replaced the water pump as it was failing all else seems normal. temps were seemed to be climbing and I could hear the pump beginning to fail, but after change of pump it still seems kind of high, this is driving for 10 minutes and getting up to 75mph for 5 minutes. outside temperature is 90 and ac was on, thoughts ideas?
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Did you burp the air out when you refilled the engine?
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yes sir, that's the first thing I thought so I double checked it.
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Yes, that's too high. My 81 SD always runs a little below the last white hash mark. Your is above the hash mark. Hint - it it gets so high that you are worried, turn the heater on high and it will cool down some; you can usually get home that way. Either heater or defroster - cannot quite remember but you get the idea.
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Maybe your thermostat is not opening quite right. I never figured out where the thermostat is when it needed replacing about ten years ago. Maybe someone can chime in and let us both know where it is and how much trouble it is to change it out.
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Poor radiator flow or worn out fan clutch is my guess. You could try running without a thermostat for a day and see what happens.
Turning on the heat is a good idea to bring the temp down if your frickin CCU is working right. I've been caught in bumper to bumper traffic twice with my temp close to yours and the heat wouldn't work. I almost got out of the car at one point to disconnect the mono valve.:mad: |
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If you're willing to remove the thermostat, put in a new one and be done with it.
Sixto 87 300D |
Sixto - I agree but how about a few directions about how to find it and get it out. I looked briefly once years ago and could not really find it. Picture would be a great help.
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Don't forget that the thermostat can be installed backwards and it has to have the "arrow" up. But ya, the om617 can be temperamental temp wise. But once you get it figured out, it should sit at 80 all day and night. If that was a 603 I would be pooping my pants by now.
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Sixto 87 300D |
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