How hot do you run?

Discussion in '40- & 55-Series Tech' started by lx450landcruiser, Jun 20, 2005.

  1. lx450landcruiser

    lx450landcruiser Moderator

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    My cruiser seems to run hot so i thought id ask you guys how hot u run?

    Mine a chevy 350-th400-dana 18
    this has a tranny cooler, new radiator, fan shrowd, and non clutch fan

    running 210 at the moment and thats not pushing it.
     
  2. IDave

    IDave

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  3. lx450landcruiser

    lx450landcruiser Moderator

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    hmm im deff running hot. do you think i could have air in the system? is that hard to check? could any one maybe tell me how to check for this? i really have no idea why this would run so hot? has new thermostate and new water pump too?

    thanks
    mike
     
  4. lingo

    lingo

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    what radiator are you running?
     
  5. Pighead

    Pighead Stop calling it an FJ

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    190, tops
     
  6. Juice

    Juice

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    I also run at 210 .... 350, toy 4spd. It never gets above that though, and I mob the s*** out of it. I don't have a fan shroud. I don't have a problem with this temperature
     
  7. IDave

    IDave

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    I do run an F engine. Interestingly, my older F 135 runs hotter than my newer F 155 with the same thermostat (180) but the 135 has a 4 core radiator vs a 3 core for the 155.

    The first thing I would wonder is if you have some hot spots not getting circulation in your engine water jacket. You can use one of the infrared beam thermometer guns to look for those. The second thing is maybe your radiator is just too small for the V8. I would think that that temp is higher than you want, even though it may run fine for now.
     
  8. lx450landcruiser

    lx450landcruiser Moderator

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    its a brand new stock radiator 3 core i believe i was told a 4 core would bee better but that a 3 core was fully capable of handeling a v8? i have new water pump, thermostat, radiator, and fan shrowd? so im not sure? when ever it gets to about 210 i get worried and shut her off. it climbs pretty rapidly i mean 0 to 210 in say 15 min of casual driving? you dont thinkit could be air in the system?

    thanks again
    mike
     
  9. camcruiser13

    camcruiser13

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    i run from 190-210 easy when i crawl and trail ride it get up to 230 never had any prob though, it might be were i put the sensor in at too, but never had trouble.
     
  10. milesstarkey

    milesstarkey

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    i used to never get over 190 with the stock radiator. since i had to replace it with what they said is an oem replacement and now i've driven on the highway it's been up to 220. i don't know how you guys can do 70 mph in an fj40. i'm probably doing 55 mph at 3000 rpm's and reaching that temp and don't want to push it any faster. should i change my rear end gears?
     
  11. IDave

    IDave

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    Sure could be air, as well as the other things. I would put it on an incline, nose uphill, take off the radiator cap and run it to burp the system.
     
  12. LandCruiserPhil

    LandCruiserPhil Peter Pan Syndrome Supporting Vendor

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    Mike what kind of fan are you running?
     
  13. coolcruiserfj40

    coolcruiserfj40

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    155 i run to cool
     
  14. IDave

    IDave

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    So your thermostat never opens?!!
     
  15. booty

    booty

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    I have a 350 with the stock rad, clutch fan, and fan schrowd. Last year it stayed at the top of the midrange on the stock guage. I had the rad. rodded out and cleaned last winter and it now never goes any higher than the lower line on the guage no matter how hard I push it.
     
  16. lx450landcruiser

    lx450landcruiser Moderator

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    i remeber you telling be about a fan i shouldd get but i figure this fan would work fine with the fan shroud i built and all the new parts, esspecially since i am trying to sell the truck. any ways its the stock metal fan i that was on it. i dont remeber how many blades but yeah. i guess maybe i should do a different fan or electric? at any rate i havent run the truck longer then say 20 min to find out if the temp will go higher but i may go try and burp the system tomarrow.

    mike
     
  17. coolcruiserfj40

    coolcruiserfj40

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    pretty much i need to change out my thremostat it has a 180 in it right now
     
  18. Atlas43

    Atlas43

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    Are you running a carb, or fuel injection? As far as I know about the Chevy's is that carbed motors run 180-195, and the fuel injection runs hotter around 210-215. I went through all of this with my cruiser. The old carbed 350 ran a constant 185, and I put a brand new crate motor with Howell Fuel Injection in on the same cooling system and it ran at 210 right out of the gate. A few calls to Howell's later I found out that the injected system need the higher temp for the sensors. Call Howell, they have a fantastic Tech line .
    Goodluck........
     
  19. lx450landcruiser

    lx450landcruiser Moderator

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    its a bone stock 350 carbed so who knows.... oh well see what happens tomarrow i guess
     
  20. 65swb45

    65swb45 Elder Statesman Supporting Vendor

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    Here's a thread you might find useful:

    http://www.pirate4x4.com/forum/showthread.php?t=303519&highlight=temp

    You should change your first post to narrow your focus on V-8s, cause us 6 cylinder guys are just gonna make you jealous. :flipoff2:

    My F135 in the dd45 runs 150, and will only hit 170 when I shut it off!

    My F155 in my FJ40 runs 160 and MIGHT hit 190 when I shut it off. It hit 190 once on the trail, but only once.

    I run 4 core copper in all my rigs. NO Al. With a shroud and a direct drive fan.
     
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