Re: {Chrysler 300} 300 F Engine overheating
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Re: {Chrysler 300} 300 F Engine overheating



All great points. But is this a new problem or a sort of lingering problem? My problem was gunk and rust in the block, which a garden hose flush wouldn’t ultimately resolve. Would have the radiator flushed out from time to time and it would be better. Then the crap in the block would eventually clog the radiator again. Once I had a George Riehl rebuild with a shot-peened block cleaning, never had overheating again.

AM

On May 5, 2024, at 6:46 PM, 'Charlie V' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:


Some of the most common causes of an overheating engine include
  • Low oil levels
  • Cooling system leaks or clogged coolant hoses. Check what Dave said about the lower hose.
  • Faulty water pump
  • Damaged or blown head gaskets or warped cylinder heads
  • Radiator failure or damaged radiator cap
  • Faulty thermostat
  • Water pumps, Thermostats and Radiator Caps; Most are made "Who Knows Where" and the quality may not be as good as it should. 
  • What pressure cap are you using? The lower pressure of the cap the lower the boiling point. 
  • Yes, a higher psi (pounds per square inch) radiator cap does indeed raise the boiling point of the coolant.

    The radiator cap is a crucial component in the vehicle’s cooling system. It serves as a gateway between the radiator and the rest of the cooling system. Here’s how it affects the boiling point of the coolant:

    1. Pressure and Boiling Point:

    2. Benefits of Maintaining Optimal Radiator Cap Pressure:

      • Prevention of Boil-Over: A properly functioning radiator cap reduces the likelihood of a boil-over situation. This prevents coolant loss, improves engine performance, and mitigates the risk of engine damage due to overheating.
      • Efficient Heat Transfer: When the coolant is under pressure, it becomes more efficient at transferring heat from the engine to the radiator. The higher boiling point allows the coolant to absorb extra heat without vaporizing, ensuring optimal heat dissipation and engine cooling.
      • Minimizing System Cavitation: Cavitation occurs when vapor bubbles form in the coolant due to low-pressure areas, resulting in localized overheating and damage to engine components. By maintaining sufficient radiator cap pressure, we minimize the risk of cavitation, thereby extending the lifespan of critical engine parts.

    In summary, a higher psi radiator cap helps maintain a safe operating temperature by raising the boiling point of the coolant, preventing overheating, and ensuring efficient heat transfer within the cooling system.

  • All  parts of the cooling system works together. If one or two of the parts of the system are not working properly  you can overheat.

Charlie Valentine

On Sunday, May 5, 2024 at 03:37:40 PM EDT, Steve <sbeard2@xxxxxxxxxxxxxxx> wrote:


Hello again from Delaware,Ohio. 
Got a overheating issue.
2 weeks ago drove it 50 miles. Brought it in and it was super hot. Put a new thermostat in  and temp guage was in the middle. Flushed engine today 3 times and new antifreeze.
Drove it 50 miles, temp outside 70.
Brought it in and radiator was gurgling and super hot and upper radiator  hose was not the usual stuff hose. 
Was steaming a little. Had radiator done within 5 years and new water pump also
Infrared temp at radiator cap 200, and engine 240.
Got a week to figure it out or a big no on driving to kokomo. 
Thanks in advance.
Ps
Got a new water pump ready to go?
Thanks
Steve Beard 
300 F
Delaware,Ohio 



Sent from my Verizon, Samsung Galaxy smartphone

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