M60 Coolant Hose Blows off of Radiator!

[Bill R.]

of the radiator as he did the coolant dumps quickly. The temperature sending unit has to be immersed to read correctly, If there's no coolant covering it completely then it won't read correctly and he'll get a false cool reading. Superheated steam still won't cause the indicator to go up because it doesn't make enough contact with the sending unit.
I've seen this many times you blow a hose, watch the temperature briefly start to skyrocket upward, then it starts to go right back down(this is when you should start to worry)

Many customers continue driving the car thinking its ok and they can make it home, they cook the engine on the way home and then i get to see the car for awhile.

I'd expect 'superheated' coolant gas would hit the temp sensor and send your needle off the dial.
In an M60 the upper pipe is above the level of the radiator, so maybe it was really only coolant flow that was interrupted when it popped. I'd expect however for boiling to cause a real problem within seconds. Just 0.02 opinion though. nick

[genphreak]

...Superheated steam still won't cause the indicator to go up because it doesn't make enough contact with the sending unit.
I've seen this many times you blow a hose, watch the temperature briefly start to skyrocket upward, then it starts to go right back down(this is when you should start to worry)

Many customers continue driving the car thinking its ok and they can make it home, they cook the engine on the way home and then i get to see the car for awhile.

Thanks Bill. I'm sure you are correct, but can't work out why the sensor would ignore the steam temperature. Theoretically the sensor would be reading the temp of the water neck if full of liquid or steam. The steam will definately be higher in temperature after hitting the hot galleries in the head and vaporising as it then has to make its way out (ie picking up a lot more heat) than the (say) 150 degree C coolant temp it had in the first place. Nick