48 Eight thermostat

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1955Desoto
Posts: 24
Joined: Wed Aug 26, 2020 4:00 pm

48 Eight thermostat

Post by 1955Desoto » Thu Sep 16, 2021 2:55 pm

Ok folks, what is up with the thermostat on a 48 288 ci? I went to check it and there was none in there. But there is a wire clip part way up the housing. It must be designed to hold something. There is also no clear indentation in the head or the housing that would hold a thermostat in place. I looked up the thermostat on a parts site, and it looks like a normal modern thermostat. I got into all this because it's been spewing water from the overflow tube when I shut it off after a drive. I also notice it gets hot when sitting idling at a light. I was going to remove the thermostat and flush the system. Any and all wisdom appreciated!

Dave Czirr
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Location: New Jersey

Re: 48 Eight thermostat

Post by Dave Czirr » Thu Sep 16, 2021 3:05 pm

The wire clip is to retain the thermostat within the housing.

1955Desoto
Posts: 24
Joined: Wed Aug 26, 2020 4:00 pm

Re: 48 Eight thermostat

Post by 1955Desoto » Thu Sep 16, 2021 3:07 pm

I kept searching and found an old post from 2008 on another site. Howard answered another guy with a similar problem. So I think I got it figured out. Thanks Howard! I see Dave also answered me. Thanks to you too!

Howard56
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Joined: Mon Dec 24, 2012 11:35 am

Re: 48 Eight thermostat

Post by Howard56 » Fri Sep 17, 2021 9:51 am

22 and 23 series tended to run bit hot so someone must have removed the thermostat to try and make it run cooler. On the packardinfo forum another poster recently said the stock thermostat was 145-150 degrees for those series with an optional 160 degree for cars in really cold climates. Keep in mind installing anything higher than a 160 would tend to make any tendency to overheat worse.

1955Desoto
Posts: 24
Joined: Wed Aug 26, 2020 4:00 pm

Re: 48 Eight thermostat

Post by 1955Desoto » Sat Sep 25, 2021 2:20 pm

Thanks. I flushed the system and installed new antifreeze. Installed a 160 degree and it seems to be doing fine. Didn't know it called for a 145-150. I will keep track of it, and will get a 145 degree to have ready. I definitely don't live in a cold climate! I'm in Georgia.

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