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new 6.5 running a little warm

Discussion in '1982-Present GM Diesel' started by ducttape114, Mar 19, 2003.

  1. ducttape114

    ducttape114 1/2 ton status

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    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
     
  2. DieselFreak

    DieselFreak Registered Member

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    putting it short: My 6.2 has the same operating temp as your 6.5 In other words: there shouldn't be any danger

    <font color="purple">Drive a diesel - Be happy</font>


    /forums/images/graemlins/k5.gif <font color="red">DieselFreak</font> /forums/images/graemlins/k5.gif
     
  3. 4x4dreamer

    4x4dreamer 1/2 ton status

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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.
     
  4. DieselBurb

    DieselBurb 1/2 ton status

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    My 6.2 has a 195 deg thermostat and cruises at just above 200.

    Diesel/forums/images/graemlins/burb.gif
     
  5. TK5

    TK5 1/2 ton status

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    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.
     
  6. ducttape114

    ducttape114 1/2 ton status

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    hey thanks guys! that puts my mind at ease.
     
  7. DieselFreak

    DieselFreak Registered Member

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    Wrote wrong last time. My car (6.2) is running at approx. 200 degrees.

    <font color="purple">Drive a diesel - Be happy</font>

    /forums/images/graemlins/k5.gif <font color="red">DieselFreak</font> /forums/images/graemlins/k5.gif
     
  8. Danno

    Danno 1/2 ton status

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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.
     
  9. ducttape114

    ducttape114 1/2 ton status

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    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.
     
  10. 4x4dreamer

    4x4dreamer 1/2 ton status

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    I got mine at Autozone.
     
  11. Danno

    Danno 1/2 ton status

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    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!
     
  12. Tybee

    Tybee 1/2 ton status

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    [ QUOTE ]
    In the winter, I almost wish I had a 195F thermostat!


    [/ QUOTE ] I do wish I had a 195.
     
  13. Diesel Dan

    Diesel Dan 1/2 ton status

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    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.
     
  14. Tybee

    Tybee 1/2 ton status

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    You sure your gauge isnt broken? Otherwise you dont have to worry about overheating.
     

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