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new 6.5 running a little warm

ducttape114

1/2 ton status
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Aug 1, 2002
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Orcutt Ca
ok, i searched and found nothing, with is strange cuz i thought i had seen this same question asked recently. anyways, my old 6.2 ran about 135*-150*. she only got up to 150* once and i was really working her. i just drove home with my new 6.5(can i get a OH HELL YES!!!) and she ran about 180*. the factory red line is at about 210* i belive, so i wasnt real worryed. i was just wondering were everyone elses 6.5s run at temp wise when your crusing? thanks
 
putting it short: My 6.2 has the same operating temp as your 6.5 In other words: there shouldn't be any danger

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Factory thermostat is set to open at 195 I believe...if it is the factory, it'll open at more like 200. I am putting a Robertshaw in mine this weekend that will open at 180. My normal temp runs around 200 though on my 6.2.
 
I did the same in my 6.2. I replaced it with a RShaw 195* Stainless thermostat and it hovers around 195-200. In the summer time I replace it with another RS 165* Stainless Thermostat.
 
Wrote wrong last time. My car (6.2) is running at approx. 200 degrees.

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Robert Shaw 370-180? If so, that's what I've been running for just under a year now. Great T-stat, you'll NEVER overheat in the summer (I didn't, even when wheeling in Colorado or driving up those blasted mountians).

Does take a while for the heat to get into the cabin during the winter, but it's not terrible.
 
ok so who is this robert shaw fellow and where can i buy his thermo-stats? i think im gonna get a 180* for the winter and a 165* for the summer. i tried all the local parts houses but they never know what im talking about. 200* is just to high for where i live.
 
Yup, Autozone is where I found mine. About $7 if I remember correctly.

I'd recommend you try the 370-180 model in the summer. It's a 180F thermostat, and I know it keeps my 6.2L below 200F under pretty much any situation. In the winter, I almost wish I had a 195F thermostat!
 
[ QUOTE ]
In the winter, I almost wish I had a 195F thermostat!


[/ QUOTE ] I do wish I had a 195.
 
Stock T-stat for my cummins was 180*, that's what I put in this winter.
Took the fan off and blocked half the radiator off with card board and still couldn't hit 180*, could hardly hit 170*. Have a mechanical gauge just below the t-stat. Hit 180* when it was 60* out, no fan and radiator blocked.
 

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