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

Vacuum water out of block??

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Old Dec 31, 2007 | 07:08 PM
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Default Vacuum water out of block??

is it possible to use a shop vac to vacuum out the remaining water in the shop through the upper or lower radiator hose without causing any internal damage?? i have the radiator and the heater core out of the car right now and i had them cleaned and i dont want the crud that is still in the block contaminate the radiator or heater core. i really dont want to pull the drain plug or the knock sensor because i have heard that it can be a real pain in the ***. I dont want to have to spend hours trying the remove the knock sensor because it snapped inside the block.
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Old Dec 31, 2007 | 07:11 PM
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It won't snap. It shouldn't be tight. Torque spec is like 14ft lbs. Just use the drains. It will take you 15 minutes.
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Old Dec 31, 2007 | 08:25 PM
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I used the block drain plug, when i was installing my LT's I broke the temp gauge that shows the temp inside the car, the one on the DS head. I took out the block drain plug b/c if you would move that sensor engine coolant would come spilling out and I did not want a mess. It was CAKE and it took little to no time. I used the following site to show me where the plug was, then after that it was easy. http://shbox.com/1/block_drain_plug.jpg
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Old Jan 1, 2008 | 10:29 AM
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There is a couple inches of water below the water pump holes in the block, just vacuuming on a coolant hose will be pointless.

I would suggest flushing, as it will actually rinse out the block rather than just take out the dirty coolant.
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