1973 Chevy Van engine is heating up

Tiny
BUCKAROUX
  • MEMBER
  • 1973 CHEVROLET VAN
Engine Cooling problem
1973 Chevy Van V8 Two Wheel Drive Manual

the fan belt broke engine got hot replaced belt started it and the thermostat was stuck radiator cool but engine overheated again changed thermostat still overheating could I need a flush? Any suggestions?
Wednesday, October 28th, 2009 AT 5:26 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi buckaroux and TY for the donation

Check the radiator if its clogged-up if not perform the water pump test if okay -check the operation of the fan clutch if yours is one if every thing is okay so far, Try flushing the coolin systme and bleed the system thorougly.

Continues to overheat get it block and pressure tested to rule out the headgasket, cracked head or block.

One way to test for a bad water pump is to squeeze the upper radiator hose when the engine is hot and idling. Careful, because the hose will be HOT! If you do not feel much coolant circulating through the hose when you rev the engine, the pump may be bad. The other cause might be a bad thermostat that is not opening properly (remove and inspect the thermostat), or a clogged radiator.

Radiator clogged check feel across the front of the radiator for cool spot while engine is idling
Was this
answer
helpful?
Yes
No
Wednesday, October 28th, 2009 AT 6:42 PM

Please login or register to post a reply.

Sponsored links