>All who might know whats going on with my 1980 Grand Marquis...
>It has 81,000 orig. miles. It sat for a while, not sure how long.
>Then it was run for a while (not by me) and it over heated.
>It was limped back to it's owners home where it sat a couple
>I have removed and flushed the radiator and block (forgot the
>dammed heater core!) When I say flushed, I gently banged on
>the radiator while running a garden hose through it. I ran the
>garden hose from the top of the block and it appeared to flow
>un obstructed out the lower radiator hose. Didn't see an extra
>ordinary amount of junk come out of either the radiator or block.
>I replaced the thermostat. I did run the car for an hour or so with
>out the thermostat and observed water flow in the radiator. I tried
>the thermostat in both directions until I discovered the correct
>direction. I wasn't sure if the previous owner may have replaced it at
>some point in time, and perhaps it wasn't installed correctly. The
>Chilton's manual merely says "be sure to note the direction the
>thermostat was in and replace it in the same manner" (er something
>like that). It didn't offer very much help. I removed the fan and
>cleaned the bi-metal clutch assy. just incase the fan may not be
>moving fast enough. I thought about replacing the water pump in case
>it wasn't moving enough water through the block (damaged impeller??)
>I also contemplated getting the radiator boiled out, but I'm not sure
>how well that actually works. I've flushed and changed the oil using
>5-30 Castrol. I am at my wits end as to what could be causing this
>overheat problem. Any help, recommendations, or insights would be
>greatly appreciated. Oh, >I forgot to mention that this car has a 302 V8 with a variable
venturie carbeurator. Don't know if that makes any difference.
>Tks in advance