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+--- Thread: OT: Overheating 89 Corolla, where is the water going? (/showthread.php?tid=19877)
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OT: Overheating 89 Corolla, where is the water going? - Microman - 10-03-2006
This 89 Corolla, has had a rusty looking water, which I have drained and filled with 50% Antifreeze. But a few days later will be dirtly, so I did it again. Now it will get hot, and when I let it cool down, it will be very low on water. THe water is getting hot, and boiling off, and I cant figure out why.
I suppose the radiator could be clogged, or the thermostat could be stuck closed. I started it and let it get hot, after filling, and then took the radiator cap off to see if I could see any water flowing thru the Top Radiator hose. Could not see water flowing thru the hose, but steam started to come out the top of the radiator as it was getting hot, so I quit to research the issue.
Could take the radiator out, and have it flushed, or just take and replace the thermostat.
Thanks, for any ideas.
Re: OT: Overheating 89 Corolla, where is the water going? - Carm - 10-03-2006
Flush the radiator, you dont need to take it out. Replace the thermostat and make sure the water pump is working. Check your oil to see if any water is leaking into the engine, if your oil has milky white liquid in it, you have a leak inside your engine. Could be just a gasket replacement or could be worse, cracked engine block.
Carm
Re: OT: Overheating 89 Corolla, where is the water going? - Catzilla - 10-03-2006
Could be a head gasket or a cracked head.
Re: OT: Overheating 89 Corolla, where is the water going? - Microman - 10-03-2006
OIl looks ok... Just oil.
Re: OT: Overheating 89 Corolla, where is the water going? - iaJim - 10-03-2006
A water pump will leak if it is bad.
Re: OT: Overheating 89 Corolla, where is the water going? - freescotland - 10-03-2006
Catzilla may be onto something. Head gasket of cracked head.
Is this the original radiator?I seem to remember a number of 88 or 89 Corollas having some overheating problems, especially those with replacement radiators.
Re: OT: Overheating 89 Corolla, where is the water going? - Racer X - 10-03-2006
[quote iaJim]A water pump will leak if it is bad.
and frequently only when the system is pressurized. Same for a radiator. Look for rust trails, if the water was that nasty.
Re: OT: Overheating 89 Corolla, where is the water going? - JoeH - 10-03-2006
One of the Toyota engines had a tendency to develop head cracks in the metal between the water jacket and the exhaust ports. So it would be hard to trace since the coolant would vaporize in the hot exhaust. Deposits would show up in the exhaust system from the antifreeze. Don't recall if that engine was used in the 89 Corolla though.
Re: OT: Overheating 89 Corolla, where is the water going? - Dennis S - 10-03-2006
I had a Nissan pickup that had a drain plug that rusted and leaked.
Re: OT: Overheating 89 Corolla, where is the water going? - Racer X - 10-03-2006
[quote JoeH]One of the Toyota engines had a tendency to develop head cracks in the metal between the water jacket and the exhaust ports. So it would be hard to trace since the coolant would vaporize in the hot exhaust. Deposits would show up in the exhaust system from the antifreeze. Don't recall if that engine was used in the 89 Corolla though.
I have a hairline crack between a water passage and an exhaust passage on one of my Stage 1 heads. Can't see a leak, and it is small enough that there isn't water vapor in the exhaust. But you do smell the glycol (similar to hot maple syrup). It goes away when the engine gets fully up to temp, as the crack is squeezed closed by the expansion. I have no idea how it happened.