i just got my engine rebuilt drove home then to work and back that night next day i left for school and when i got there my add coolant light and buzzer went off so after school i fill it and my brother tells me theres a huge puddle in my driveway no idea why it would b leaking no boost or over 4500 rpms but it got on the block under the manifolds and somethin weird is comin out by one of my spark plugs ill try to take pics 2morrow if anyone has any ideas post it though please thanks

 

without actually seeing whats happening its hard to say,but if its coming out the spark plug couple of things could of happened, either they used the same old seals,or one of the new seals got pinched when assembling the engine or if the engine was ported they went too far. Is the car smoking at all? Double check all the hoses from the water pump and radiator just to make sure your not getting ahead of yourself.Who rebuilt the engine?

 

you have to source the leak for us then it should be self explanatory. pictures would help alot. i hope you know how to use the macro function if its gonna be close ups

 

There's a coolant hose that runs under the oil filter that tends to leak due to the oil weakening it over time. Check that.

 

Upper Intake Manifold hose good ? The one under there when it leaks it will run down the engine at random places. I would pull the UIM off. and check the hose.

 

http://www.aaroncake.net/rx-7/coolantbuzz.htm (or coolentbuzz.htm)