- Jun 21, 2004
- 22
- 0
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Ok, I'm having a cooling system problem. After running my 66 w/ 289 on the highway for about 45min to 1 hour I have to refill the radiator almost a gallon!
It seems to run fine around town and to/from work (about 30 min driving in traffic) Things I've checked so far:
thermostat
radiator cap
lower hose has wire inside
flushed out radiator
no leaks in the cooling system (doesn't have loss if I pressure it)
flow seems good (can see it moving if I remove cap)
No moisture on oil dipstick
The radiator is a little cruddy, not sure if that could be it. Its a 2 core. I also have NO fan shroud (I know, I need to get one), and a 6 blade flex fan, which is about an inch to an inch 1/4 away from the radiator. When I stopped the car the overflow hose was literally pouring out steam! The engine idles nice, and like I said no overheating at idle (I even put a thermometer in the radiator to check, about 180-190 at idle). I'm planning on getting an accurate temperature gauge as the dash one is a little sketchy. Any help would be appreciated!
-Tom

thermostat
radiator cap
lower hose has wire inside
flushed out radiator
no leaks in the cooling system (doesn't have loss if I pressure it)
flow seems good (can see it moving if I remove cap)
No moisture on oil dipstick
The radiator is a little cruddy, not sure if that could be it. Its a 2 core. I also have NO fan shroud (I know, I need to get one), and a 6 blade flex fan, which is about an inch to an inch 1/4 away from the radiator. When I stopped the car the overflow hose was literally pouring out steam! The engine idles nice, and like I said no overheating at idle (I even put a thermometer in the radiator to check, about 180-190 at idle). I'm planning on getting an accurate temperature gauge as the dash one is a little sketchy. Any help would be appreciated!
-Tom