LT1-LT4 Modifications 1993-97 Gen II Small Block V8

overheating what ya think?

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Old Aug 28, 2010 | 02:02 AM
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My bros car is leaking coolant and I go over there to find out whats up with the car. I check these over and dont see any leaks from anywhere even after I fill the car up and bleed the system. Start up the car and still no leaks, from anywhere. So finally it gets upto about 180 which the fans should turn on where the tune is set with a 160* t-stat. The fans start to turn on and coolant just keeps spilling out of the radiator like it has giant air pockets, But there is no air in the system. I fill the raidiator again and it just keeps spilling fluid out and temps will reach over 220*. I can hear a lil screeching sound like the water pump bearing or something. But again, no leaks from anywhere. Im thinking the water pump took a **** and its NOT flowing in the radiator. Both upper and lower radiator are scolding hot at 220* and thats when coolant goes everywhere. What ya guys thinkin. Im tired and off to rest
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Old Aug 28, 2010 | 04:57 AM
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my car runs at around 220 and even 230 on some days. ive tried everything to get it to run cooler but nothing works but it never pisses coolant
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Old Aug 28, 2010 | 06:14 AM
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Could also be a bad thermostat.
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Old Aug 28, 2010 | 12:45 PM
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its been running perfet for a 2 weeks. The only used parts are the water pump and t stat. I removed the t stat to see if it was open and it was. I then put the it back together and left the t stat out. Ran the car and the same thing, No leaks and water just pouring out of the radiator
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Old Aug 28, 2010 | 12:56 PM
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I would think the water pump isnt flowing water. The screeching could be from the gear or something
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Old Aug 28, 2010 | 01:01 PM
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Originally Posted by BlackBird87
I would think the water pump isnt flowing water. The screeching could be from the gear or something
Thats what it sounds like to me, even when its cold and you look in the radiator its not flowing anything. The water in the radiator dont even move, its kinda scary lol
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Old Aug 29, 2010 | 12:26 AM
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LMOA water pump blew apart...gear came off the shaft, im a genius
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Old Aug 29, 2010 | 12:41 AM
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Good stuff, atleast it's an easy and now obvious fix.
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Old Aug 29, 2010 | 02:24 AM
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Originally Posted by robsquikz28
LMOA water pump blew apart...gear came off the shaft, im a genius
The bro fixed it .... Heres a video of the blade coming off its weld ... hes spinning the shaft at the bottom of the pump and the blade is suppose to move but as you can see the weld came off . So time for a new water pump which was installed today , thanks to the bro once again ...

http://www.youtube.com/watch?v=dLlj49YYeY4

Here some pics




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