My BJ60 keeps throwing up all it's antifreeze...
- Thread starter Red Pony
- Start date
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Turn all of you heaters on full blast the next time you add fluid. You may just have air in the system and the heater cores are part of the system.
Turn all of you heaters on full blast the next time you add fluid. You may just have air in the system and the heater cores are part of the system.
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"still does it"...
I assume that means it was doing this before you replaced the thermostat etc?
I had a diesel that would spew coolant out the overflow once warmed up. Turned out to be a cracked head - hope that's not the case for yours
cheers,
george.
What else?
Have there been any other recent repairs? I had a friend go through this. He had rebuilt the engine and the after-market head gasket was incorrect; holes in the wrong places, no coolant flow. That's not the only time I've seen that.
Have there been any other recent repairs? I had a friend go through this. He had rebuilt the engine and the after-market head gasket was incorrect; holes in the wrong places, no coolant flow. That's not the only time I've seen that.
Crack head (most likely)
Broken internal water pump shaft ( check the heater after 15 min. if it blows warm air then it is not water pump)
Bad radiator
Broken internal water pump shaft ( check the heater after 15 min. if it blows warm air then it is not water pump)
Bad radiator
- Thread starter
- #6
thanks! fingers crossed it is not the head!
I heard that if it was the head was cracked the antifreeze would be mucked up with oil that had leached, does that sound right? The antifreeze is perfectly clean when it comes out. The only repair I have had done recently with the cooling system was the thermostat.
I heard that if it was the head was cracked the antifreeze would be mucked up with oil that had leached, does that sound right? The antifreeze is perfectly clean when it comes out. The only repair I have had done recently with the cooling system was the thermostat.
You sure the t-stat is opening?
Might want to post this in the diesel section, many of the diesels folks may not look here very offten.
Might want to post this in the diesel section, many of the diesels folks may not look here very offten.
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Note that the FJ and BJ thermostats are NOT interchangeable - a common mis-installation.
Check all the basics, then check for pressure building up in the cooling system while the engine is cold or hot - use a pressure gauge/cooling system pressure tester (looking for pressure that is not related to water temperature/thermal expansion of coolant).
Common cause: head gasket or cracked head.
NOTE: make sure you have NO air in your cooling system.
Check all the basics, then check for pressure building up in the cooling system while the engine is cold or hot - use a pressure gauge/cooling system pressure tester (looking for pressure that is not related to water temperature/thermal expansion of coolant).
Common cause: head gasket or cracked head.
NOTE: make sure you have NO air in your cooling system.
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The diesel that I had with a cracked head ran perfect till it warmed up, then the high compression of the diesel with the hot head would push exhaust into the coolant. So, no oil/coolant mix in either the sump or coming out the overflow - so seeing 'muck' is not necessary while still having a cracked head.
New head (and all it entails) took care of the problem.
cheers,
george.
New head (and all it entails) took care of the problem.
cheers,
george.
