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JimG1127 · 11-05-2022, 07:56 PM

So I put on new hoses, clamps, water pipe. New graphite packing on the water pump. Flushed water through system., Drained. Filled it with white vinegar and drove it around. Let it sit overnight. Drained it. Very rusty looking water. Filled with water. drove it around. Let it cool. Drained it. Did this flush process with water about 8 times. Water now comes out pretty clean.
After driving car while its idling I check it with an Infrared Thermometer. Upper radiator about 200 degress. Radiator gets cooler as I move down. When I turn off the engine the temp goes up.
Tried the water test. Took off the bottom hose. Stuffed a rag in the lower radiator opening. Filled the radiator with water. Pulled rag out. Water was coming out at a decent volume for about 8 seconds. From what I've read this is not good. Radiator has white stains on front but doesn't leak. Do I need a new radiator?

11-05-2022, 07:56 PM	#17
JimG1127 Member Join Date: Oct 2022 Location: New York Posts: 50	Re: Radiator steams after short drive. So I put on new hoses, clamps, water pipe. New graphite packing on the water pump. Flushed water through system., Drained. Filled it with white vinegar and drove it around. Let it sit overnight. Drained it. Very rusty looking water. Filled with water. drove it around. Let it cool. Drained it. Did this flush process with water about 8 times. Water now comes out pretty clean. After driving car while its idling I check it with an Infrared Thermometer. Upper radiator about 200 degress. Radiator gets cooler as I move down. When I turn off the engine the temp goes up. Tried the water test. Took off the bottom hose. Stuffed a rag in the lower radiator opening. Filled the radiator with water. Pulled rag out. Water was coming out at a decent volume for about 8 seconds. From what I've read this is not good. Radiator has white stains on front but doesn't leak. Do I need a new radiator?