1971 Oldsmobile 442 new rebuilt engine overheating

1971 OLDSMOBILE 442
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JCB01
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  • 4 POSTS
Engine Cooling problem
1971 Oldsmobile 442 V8 Two Wheel Drive Automatic

I have a newly rebuilt olds 455 motor, slightly high performance.
It heats up to 200 degrees in less than 5 min.
the theromostat is a 160 degree an is opening up in probably 2 minutes.
I have a new water pump, new alum radiator, fan shroud is on, spring is in bottom hose, timming is set at 8 degrees.
With in 10 minutes sometimes as little as 6 minutes the temp is 220 degrees and climibing and I shut it down.
Jun 4, 2010 at 2:21 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
Could be airlock try bleeding it don't work get it block tested
Jun 4, 2010 at 3:33 PM
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