Running hot

Asked by Apr 19, 2016 at 10:14 AM about the 1972 Oldsmobile Cutlass Supreme

Question type: Maintenance & Repair

I have a 72 cutlass olds 350 just got the motor
rebuilt and its running hot checked raditor
,thermostat  heater core clucth fan need help

6 Answers

82,145

When filling the cooling system, did you bleed out the air pockets?

2 people found this helpful.

Im not sure they did all that at the shop but i will work on it now

82,145

Set the motor up while you can, make sure the carb is adjusted, and the timing is set.

1 people found this helpful.
4,875

Make sure the cooling system is actually full. Air pockets are unlikely on an old V8, but it could happen. Be sure your fan is bolted on the right way. Some fan blades can be reversed accidentally so they are blowing instead of sucking air in through the rad. (I speak from experience) How hot is it running? Some new engines run a little hot while they're new, but it its running way into the red on the gauge then that's a problem. Try running it without a thermostat. It's not like newer cars that have to have them to keep the electronics working properly. Don't leave it out indefinitely, but you can take it out to keep it running cooler while you tune and adjust it and it will also perhaps eliminate the thermostat as the source of the problem.

I have changed the radiator,water pump,thermostat,head gaskets. And it still keep running hot. What should I do next

82,145

Purge the cooling system from air pockets. Watch this video on how too... www.youtube.com/watch?v=zUpXgAJ1gjU

4 people found this helpful.

Your Answer

Cutlass Supreme

Looking for a Used Cutlass Supreme in your area?

CarGurus has 69 nationwide Cutlass Supreme listings and the tools to find you a great deal.

ZIP:

Oldsmobile Cutlass Supreme Experts

  • #1
    munron
    Reputation
    720
  • #2
    tennisshoes
    Reputation
    430
  • #3
    Tom Demyan
    Reputation
    350
View All

Related Models For Sale

Used Chevrolet Monte Carlo
937 listings starting at $3,998
Used Buick Regal
83 Great Deals out of 4,105 listings starting at $5,300
Used Chevrolet Camaro
241 Great Deals out of 28,842 listings starting at $1,800
Used Oldsmobile 442
62 listings
Used Ford Mustang
256 Great Deals out of 36,838 listings starting at $2,500
Used Chevrolet Impala
395 Great Deals out of 25,692 listings starting at $900
Used Chevrolet Caprice
132 listings starting at $1,350
Used Dodge Challenger
100 Great Deals out of 25,144 listings starting at $7,995
Used Dodge Charger
250 Great Deals out of 32,949 listings starting at $2,000
Used Chevrolet Corvette
100 Great Deals out of 15,290 listings starting at $3,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.