ok here it is. i just recently bought jays (84scoobaroo)'s xt turbo. and it has a cracked head and the block is bad. so when he owned it he could run it for 2-3 mins without it over heating. so i get it and i cranked it over. and i was sitting their for 20 min and the temp didnt even go up 1 bar so i wondered if i could drive it. so today i put some water in the rad. and started going. went good and the bar only went up to 1. but i was running the motor in the 1800-2000 range. so i thought what if i opened this beast up. i saw a honda going up a hill and reved my engine and opend it up to 4 gear around 5000 and went only another bar up. needless to say i drove it about 10 miles then battery died so i decided to drive back. went back about 3 miles and the temp didnt reach ne thing over 4 bars. so i thoght im going to be fine. went to a stop and smoke started to pour out from under the hood and the turbo air duct. i then drove it about 5 miles like this and then white smoke went every where then finally it died in the middle of the intersection when it just wouldnt go ne more. i just thought that this is weird that it would take so long for it too do this when it couldnt be ran for more than 2 mins and the temp gauge not go over 4 bars... :-\

Maybe the water level was too low for the sensor to read?

Exactly. There wasnt enough water in the system to get a reading from. Once it got to temp the TS opened up and away went the what water you had, in a cloud of steam.

Glad you got that block from me?