ENGINE OVER HEATING

  • Tiny
  • pot
  • 1995 BMW 328
  • 10,021 miles

The over heating only seems to occur when the engine has been used at peak revs. Eg track use It isn't losing water prior to the over heating
The thermostat has been changed, the pump has been checked, all pipes have been checked for leeks, the system has been flushed and back flushed. It doesn't over heat if the heater is on but the heater only starts to work when the engine has been used at high revs. And will keep on working. If the heater is not on initially that is when the over heating occurs, and the heater when turned on will not get hot. The bottom radiator hose is luke warm and the radiator is cold.

Monday, September 3rd, 2012 AT 4:48 PM

4 Answers

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Sounds like a clogged radiator. Have it flow checked.

Roy

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Monday, September 3rd, 2012 AT 4:54 PM
  • Tiny
  • pot
  • Member

Thanks for your idea but I have removed the rad. And poured water through, and it flowed freely

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Tuesday, September 4th, 2012 AT 8:25 AM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Thats not a test. A flow rate test is required as the water flows a lot quicker than you can see.

Roy

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Tuesday, September 4th, 2012 AT 11:53 AM
  • Tiny
  • pot
  • Member

OK thanks I will try and find some were to get it tested

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Tuesday, September 4th, 2012 AT 2:58 PM

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