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engine running hot

Discussion in 'Chevy Trucks' started by hfdresq1, Feb 15, 2002.

  1. hfdresq1

    hfdresq1 Junior Member
    Messages: 15

    i have an 85 chevy k30 with an 8 foot fischer plow. when the plow is attached, the engine runs hot. would a larger fan or a flex fan solve this problem?
  2. beerandcope

    beerandcope Junior Member
    Messages: 27

    a flex fan would certainly not hurt you left out some important factors in your post like how many cores your radiator is if its a 3 core you might wanna try swapping far a 4 core try braiding your hoses that helps dissipate heat rather quickly.

    i just finished swapping motors in my 73 and had a problem with the motor running hot i put a 17" flex fan on it and a bigger radiator and that solved it. before i was running in the mis 200s to mid 300s degrees when i pu tthat on it dropped to mid 190 to low 200 all the time.:p

    i hope i awnsered your question

  3. Ohiosnow

    Ohiosnow Senior Member
    from Ohio
    Messages: 415

    Just watch

    the larger radaitor from years experience when you switch to a larger core you must have a waterpump strong enough to move the extra flow. I've seen some when they made the switch they ran ever hotter & some just stayed the same. Sometimes it's the waterpump not pushing enough flow to begin with. The flex fan will do the trick unless the radiator is already starting to plug (as in old). Just something to think about, have the pressure & flow ckecked with a flow meter. It could save you some $$$$$.
  4. intimidator

    intimidator Member
    Messages: 69

    If all else fails, its hard to beat an electric fan. Truck warms up quicker and you control the temp. it runs at, I think some have a manual over-ride also, and they move alot more air than a conventional fan. This probably wouldn't be any more expensive than going to a 4 core radiator conversion.


    2 days til Daytona
  5. speedracer241

    speedracer241 Senior Member
    Messages: 325

    try running your plow in a different angle or raise or lower it a little to get more air across the radiator. i found that running mine all the way to the top allows more air under the plow and thru the radiator.

    worked 4 me
    Mark K
  6. Big Todd

    Big Todd Senior Member
    Messages: 126

    I've seen it hundreds of times being in the parts business...

    Go out and buy a Thermal Fan Clutch, and a good (high performance) 195 degree thermosdat. Put those two items on and, flush and refil your cooling system with the proper 50/50 mix. Problem solved, I garuntee it.
  7. plowking35

    plowking35 2000 Club Member
    from SE CT
    Messages: 2,923

    are you running a snow deflector on the plow, if not get one, I bet that will solve your problem. With out the deflector the air gets pushed over the nose of the truck by the plow. With it, the air is kept in front of the truck and clean air gets over the plow and into the radiator. It will be alot cheaper than new fans and radiators.
    It is worth a shot.
  8. reallyrusty

    reallyrusty Member
    Messages: 71

    Do yo have a fan shroud? That would also help.